Siemens SIMATIC PCS 7 vs. QB Control

Comprehensive Comparison for Bioprocessing Automation

1. Executive Summary

The Core Argument

Siemens SIMATIC PCS 7 is a full-scale DCS (Distributed Control System) designed for enterprise-level process manufacturing at production scale — pharmaceuticals, chemicals, oil & gas, food & beverage. QB Control is a SCADA-class browser-based platform designed specifically for modular liquid handling and bioprocessing — from lab bench to pilot scale.

These are fundamentally different products with minimal overlap in ideal deployment scenarios. The comparison is most relevant in biotech process development and pilot-scale operations (10 L – 100 L bioreactors, process optimization, DoE campaigns), where PCS 7 introduces unnecessary complexity, Windows dependency, and vendor lock-in friction.

Key Finding

Scenario	QB Control Replaces PCS 7?	Value Driver
Lab-scale bioprocessing (1–10 L)	✓ Full replacement	85% cost reduction, days vs. months setup
Pilot-scale upstream (10–100 L)	✓ Strong replacement	70-80% cost reduction, modular hardware, no legacy dependencies
Process development & DoE	✓ Superior alternative	Bioprocess-specific templates, 50× faster iteration
Parallel fermentation (multi-vessel)	✓ Strong replacement	Plug-and-play multi-bioreactor support, no SI required
Single-use bioprocessing	✓ Strong replacement	Designed for modular, disposable systems; QB Modules IP40-rated for lab/pilot
GMP manufacturing (>200 L)	◐ Partial / complementary	QB Control for monitoring; PCS 7 for mission-critical control
Continuous manufacturing	✗ Not a replacement	PCS 7's advanced control, MPC, process analytics required
Enterprise DCS (multi-site, multi-product)	✗ Not a replacement	Different product category entirely
PROFINET/PROFIBUS plant integration	✗ Not a replacement	PCS 7's industrial fieldbus dominance; QB Control uses modern protocols

2. Platform Philosophy Comparison

Fundamental Architecture Difference

Dimension	PCS 7	QB Control
Product Category	Full-scale DCS (Distributed Control System)	SCADA-class browser-based bioprocess platform
Design Philosophy	Enterprise-first, top-down, production-scale oriented	Modular-first, bottom-up, lab-to-pilot optimized
Target Scale	200 mL – 20,000+ L (production facilities)	250 mL – 100+ L (lab to pilot, extensible)
Deployment Model	Installed system requiring professional integrators	Plug-and-play, self-deployable for intended scale
Software Delivery	Windows 11 IoT LTSC / Server 2024 (proprietary systems)	Browser-based (any device, any OS, any browser)
Configuration Model	IEC 61131-3 (CFC/SFC programming) + ISA-88 BATCH	Visual drag-and-drop + 37 pre-built bioprocess services (no coding)
Hardware Controllers	AS 410/410H automation systems, PROFINET/PROFIBUS plant bus	QB Edge (industrial Linux ARM PC, PoE-powered, fanless)
Deployment Time	3–12 months (engineering, commissioning, validation)	Days to weeks (plug-and-play, templates)
Vendor Strategy	Proprietary SIMATIC ecosystem (strong lock-in via PROFINET architecture)	Open ecosystem (OPC-UA, Modbus, MQTT, REST API, SQL)
GAMP Classification	Category 5 (custom CFC/SFC code) — except where APL blocks used as pre-validated components	Category 4 (configurable software) — all recipes + services pre-validated
Windows Dependency	Mandatory Windows 11 IoT LTSC 2024 or Server 2024 for OS servers	No OS server required; all logic runs on QB Edge (Linux)
Learning Curve	Steep (6+ weeks formal training; CFC/SFC mastery required)	Gentle (2–3 days to productivity; visual + pre-built templates)

The "Boeing 747 to Commute" Problem: PCS 7 for Biotech

PCS 7 is engineered for mission-critical, production-scale manufacturing where:

• Facility downtime costs $100K+/hour

• Multi-product campaigns run continuously

• 50+ control loops must coordinate across plant-wide infrastructure

• PROFINET S2 redundancy and Hyper-V virtualization are essential

• Integration with MES, ERP, LIMS, PAT is non-negotiable

This is flying a Boeing 747 to commute 5 miles.

For a biotech lab or pilot facility running:

• 4–12 bioreactors in parallel

• DoE campaigns with weekly control strategy changes

• Equipment from Hamilton, Mettler Toledo, Levitronix

• Weekly or monthly batches (not continuous campaigns)

• Validation scope constrained to single room/facility (not plant-wide)

• 85% cost reduction vs. PCS 7

• 50–100× faster iteration cycles

• Zero Windows dependency (lab IT comfort)

• No system integrator gatekeeping

• Bioprocess-specific control strategies (not generic process blocks)

• GAMP 4 classification (vs. PCS 7's Category 5 custom code burden)

What This Means for the Client

PCS 7 assumes the client is a large pharmaceutical or specialty chemical manufacturer with:

• Multi-site deployment

• Plant-wide orchestration across dozens of units

• Deep integration with existing SIMATIC infrastructure

• Willingness to invest 6+ months of integrator engagement

• Capital budget of EUR 150K–500K+ for a single production line

• Biotech R&D and process development

• CDMOs running contract batches at small scale

• Academic research and CRO operations

• Pilot-scale facilities validating processes before scale-up

• Rapid experimentation (DoE, parameter optimization)

• Teams without process control expertise

The typical PCS 7 biotech customer is a 200+ employee pharma company running a GMP manufacturing suite. The typical QB Control biotech customer is a 20–100 person biotech firm or research group doing upstream process optimization.

3. Architecture & Hardware Comparison

Controller & System Architecture

Component	PCS 7	QB Control
Central Automation System	AS 410 / AS 410H (Intel-based, redundancy via sync modules, 10km fiber optic)	QB Edge (industrial Linux ARM PC, fanless, PoE-powered, IP40-rated)
Network Communication	PROFINET IO (RT, IRT), PROFIBUS DP/PA (12 Mbps classic)	Ethernet PoE (7× LAN PoE per QB Edge, 1× WAN, Gigabit capable)
CPU 410-5H Specifications	2× PROFINET/Ethernet 10/100 interfaces, 1× PROFIBUS DP 12 Mbps, redundancy modules	Single unit; expansion via QB Switch (7+7+7 cascade)
Real-Time Execution	25ms scan cycle (proprietary SIMATIC kernel)	Real-time within PoE network latency (<10ms typical)
Device Discovery	Manual configuration via STEP 7 / TIA Portal + commissioning procedures	Auto-discovery — plug in QB Module, appears in Inventory automatically
Workstation Requirement	Dell-only PCs (or approved vendors), Windows 11 IoT LTSC 2024; expensive CALs per client	Any device with a browser (Chrome, Firefox, Edge, Safari, tablets, mobile)
Power Architecture	Separate 24V DC power supplies + redundant UPS for critical loops	PoE — single cable per module carries power + data (48V DC, 220W per QB Edge)
Form Factor	19" rack-mount AS 410H (~500×400×200 mm), marshalling cabinets with terminal rows	Bench-top QB Edge (310×115×115 mm, 2 kg) + modular QB Modules per process
Wiring & Marshalling	Complex terminal boards, cable trays, segregation of analog/digital/power	Single Ethernet cable per QB Module — PoE-injected, minimal wiring
Redundancy	PCS 7 S2 architecture with H-sync and PROFINET RT for equipment redundancy	Single QB Edge per facility; multiple QB Edges can run same process (via REST API coordination)
I/O Capacity (per controller)	AS 410-5H: 100s of digital + analog channels (via ET 200 remote I/O expansion)	QB Edge: 7 modules native (each module = 1 specific device); 100% software defined

Function	PCS 7 Approach	QB Control Approach
Pumps	3rd-party (Sartorius, GE, Levitronix, etc.) integrated via PROFIBUS or HART, or connected via analog I/O with custom CFC blocks	Native QB Modules: Peristaltic (PMP-001/002), Centrifugal (PMP-003), Syringe (SPM-001) — plug-in + auto-discovered
Sensors	Hamilton/Mettler Toledo via dedicated PROFIBUS DCP or HART adapters; requires engineering per integration	QB Multisensor (MTS-001): Directly connects up to 6 Hamilton/Mettler Toledo probes via Modbus RS485; no adapters
Agitation	3rd-party controllers via analog outputs or PROFIBUS; custom feedback loops in CFC	QB Agitator (AGT-001/002, MAG-001/002): Native modules, 2–6 vessel support; built-in feedback control
Temperature	Huber, Lauda, or equivalent via PROFIBUS/analog; requires custom CFC control loops	QB Thermo (TCT-001: heating/cooling 2–42°C, TCT-003: heating mats) — native PID, pre-validated
Gas Flow	Mass Flow Controllers (Aalborg, Brooks, Bronkhorst) via analog or HART	QB Gasflow (GFC-001/002: 0.1–20 SLPM, up to 2 gas streams) — native, Modbus-based
Valves	3rd-party solenoid/pneumatic via discrete I/O; manually engineered state machines in CFC	QB Pinch Valve (PVL-001), QB Selector Valve (SVL-001: 24 positions) — native, atomic operations
Scales	Mettler Toledo, Kern via serial RS232 or HART adapter to ET 200	QB Multiscale (MSC-001: up to 6 scales via RS232) — native, MT-SICS protocol support
Foam Detection	Not standard in PCS 7 (custom sensor integration required)	QB Foam Sensor (FSN-001): Optical, non-contact, patent-pending, built into system
LED/Light (Photobioreactors)	Not supported	QB Light (LED-001/002): Up to 6 independent LED channels for photobioreactors; bioprocess-specific
Pressure Monitoring	3rd-party transmitters via HART/analog	QB Pressure (PRS-001): Up to 2 single-use IBP transducers, pre-calibrated

Key Hardware Advantage: QB Control

• No marshalling cabinets, terminal rows, or cable trays — single Ethernet cable per device

• Auto-discovery eliminates commissioning overhead — no manual I/O assignment in STEP 7

• PoE eliminates separate power infrastructure — no 24V DC supplies, no UPS, no power distribution boards

• Bench-top form factor — QB Edge + modules fit on a lab bench; no rack room needed

• Open sensors — Hamilton, Mettler Toledo sensors purchased at market price, not through Siemens integrators

• IP40-rated QB Modules — designed for lab/pilot environment (not IP67 — acceptable for indoor, climate-controlled spaces)

Key Hardware Advantage: PCS 7

• Enterprise redundancy — S2 architecture with PROFINET RT (IRT) for critical paths

• Massive I/O capacity — AS 410 + ET 200 expansion can accommodate 100s of control loops

• Production-scale wiring standards — PROFIBUS PA supports intrinsically safe areas (pharma manufacturing)

• Proven at scale — thousands of deployed PCS 7 systems in pharma/chem/petrochemical plants

• Hyper-V virtualization — multiple isolated OS servers on one AS 410H for multi-product campaigns

• Plant-wide PROFINET fiber backbone — supports 10km redundant networks for multi-building sites

4. Parallel Processing & Multi-Device Control

Side-by-Side Comparison

Capability	PCS 7	QB Control
Max Parallel Bioreactors (native)	32+ (via PROFINET Discovery), configurable at production scale	7 per QB Edge via PoE; unlimited with cascade (QB Switch) or federated QB Edge deployment
Parallel Architecture	ISA-88 Unit Modules, each bioreactor = independent automation unit with batch execution	Each bioreactor = independent Process with own P&ID, Services, Recipes, Batch Recording
Shared Resource Arbitration	SIMATIC BATCH Executive for CIP/SIP and inter-unit dependencies	Process-level resource management; QB Services enforce mutual exclusion
Independent Recipes Per Vessel	Yes (ISA-88 procedural model with multi-unit coordination)	Yes (visual Designer Board per process, parallel recipe execution across processes)
Unified Data View	SIMATIC Historian (all units → centralized database, SQL-queryable)	QB System → Graphs (per-process live + history), Reports (per-batch); REST API for integration
Cross-Batch Comparison	DCS-grade historianing + InfoBatch analytics	QB Graphs (multi-parameter overlay) + CSV export for external analysis tools
Technology Transfer (Lab→Production)	ISA-88 recipe structure enables formal handover but requires re-engineering for production scale	Process Configuration Import/Export enables replication across QB Control installations at any scale
Campaign Management	SIMATIC BATCH Campaign Manager for scheduled batch sequences	Recipe Executions Board with batch lifecycle, manual + automated batch triggering
Load Balancing Across Units	Batch Executive with unit-level arbitration rules	Custom Services can implement resource allocation logic (not automated)

• System layer defines physical resources (QB Edge, all connected QB Modules, sensors, equipment)

• Multiple Processes can be defined within one system; each represents a distinct bioreactor or fermentation line with:

• Auto-generated P&ID (process-specific flowsheet)

• Device binding (specific QB Modules assigned to this process)

• Services list (which control strategies are available for this process)

• Recipes (versioned workflows using assigned services)

• Batch recording (full data capture per batch)

• Alarms (per-process thresholds)

• Reports (per-batch documentation)

• Multi-instance services — same service type (e.g., "Temperature Control by TCU") instantiated across multiple processes

• Parallel recipe execution — multiple recipes run simultaneously; each process tracks its own state independently

• Process-level isolation — one process crash does not affect sibling processes (no global state shared)

PCS 7's Parallel Processing Model

PCS 7 implements parallel processing through ISA-88 Unit Modules and Batch Executive :

• Equipment Phase (EP) layer defines individual equipment (pump, TCU, bioreactor, etc.)

• Unit Procedure (UP) layer bundles related EPs (e.g., "Fermentation Unit" contains pump EP, temperature EP, sensor EP)

• Operation & Phase layers define the control logic (time-interlocked steps, conditional transitions)

• Batch Executive arbitrates multiple units, enforcing:

• Inter-unit synchronization (e.g., wait for CIP completion before next batch)

• Resource contention (e.g., shared media prep tank)

• Exception handling (abort propagation across units)

• Procedural recipe model — recipes are formal step sequences with entry/exit conditions, not visual workflows

Where QB Control Excels in Parallel

• Zero system integrator cost to deploy parallel bioreactors

• Visual P&ID per process — auto-generated, not manually drawn in Visio

• Process Configuration Import/Export — clone a proven 2-bioreactor setup to a 6-bioreactor farm in minutes

• Self-service multi-user access — researchers in different labs monitor/control different processes from any browser simultaneously

• Modular hardware scaling — add a parallel bioreactor = add one QB Module set + license upgrade (not buy new AS 410, new ET 200s, new workstations)

• Rapid parallel experimentation — multiple DoE campaigns running concurrently with different recipes

• No Windows CAL licensing penalty for adding parallel workstations

Where PCS 7 Excels in Parallel

• Production-scale vessel count — 32+ units natively, thousands across multi-site networks

• Sophisticated batch arbitration — SIMATIC BATCH Executive handles complex inter-unit scheduling

• ISA-88 full formalization — guarantees recipe structure follows pharma handover standards

• Batch Historian + InfoBatch — enterprise-grade analytics for production reporting

• Hyper-V multi-OS isolation — separate recipe environment per product line with zero crosstalk

• PROFINET RT/IRT synchronization — sub-millisecond timing across 100+ distributed units

• Advanced resource arbitration — CIP/SIP scheduling, feed tank contention, utility management

5. Multi-Vendor Equipment Integration

Protocol Support Comparison

Protocol	PCS 7	QB Control
PROFINET IO	Native (AS 410 primary port) — PROFINET RT & IRT supported	Not supported (not needed for lab/pilot scale)
PROFIBUS DP/PA	Native (AS 410-5H CPU includes PROFIBUS DP 12 Mbps)	Not supported (legacy; not needed)
OPC UA	Supported via FDI (Field Device Integration) or OPC UA adapters	Native — modern OPC-UA client, bi-directional data flow
Modbus	Not native; via 3rd-party gateways or SIMATIC NET adapters	Native (TCP, RTU, via Modbus modules)
MQTT	Not native; requires custom gateway or TIA Portal extension	Native — IoT real-time streaming for remote monitoring
REST API	Not native (WinCC can expose via custom web modules)	Native — modern HTTP/JSON integration for MES, LIMS, mobile apps
SQL (JDBC/ODBC)	Via Historian database (proprietary SQL structures)	Native — direct JDBC/ODBC access to QB data stores
LDAP/Active Directory	Supported via Windows OS integration	Native — modern SSO with corporate directory, no Windows dependency
HART	Native (via SIMATIC NET HART gateway)	Not standard (sensors via Modbus instead)
Foundation Fieldbus	Native (but users report complexity, segment losses)	Not supported (not needed; replaced by Modbus RS485)
Ethernet/IP	Supported via gateways	Not needed (alternative: Modbus)
Serial (RS232/RS485)	Via ET 200 converter modules	Native (QB Multiscale, QB Multisensor use RS485 Modbus)
Bluetooth	Not supported	Supported (QB Edge with Bluetooth adapter option)
WiFi	Not applicable	Native — QB Edge WiFi connectivity
LTE/5G	Not applicable	Native (QB Edge LTE module option) — remote monitoring from anywhere
SMTP/Email	Via custom gateway or WinCC	Native — alarm escalation, batch notifications

Sensor Vendor Support Comparison

Vendor	PCS 7 Approach	QB Control Approach
Hamilton (Arc probes)	Via dedicated HART adapters or PROFIBUS DCP integration (requires engineering)	Native — QB Multisensor connects up to 6 Hamilton probes directly via Modbus RS485; no adapters
Mettler Toledo (InPro sensors)	Via HART adapters or Fieldbus (integration effort)	Native — QB Multisensor connects all MT ISM-series sensors; Modbus RS485
Levitronix (flow meters, pumps)	Custom Modbus/serial adapters required	Native — QB Multisensor supports all Levitronix Flow meter models (0–160 l/min)
Mettler Toledo Scales	Via analog input or serial port converters to ET 200	Native — QB Multiscale connects MT-SICS sensors directly (Kern, Mettler Toledo)
Kern Scales	Requires custom serial integration	Native — QB Multiscale PKP-series support, direct RS232
Endress + Hauser (flow, pressure)	Via PROFIBUS PA or HART adapters	Supported via Modbus (check compatibility per model)
Sartorius Biostat STR Gen 3	Pre-engineered integration kits available (reduces time ~20%)	Supported via built-in QB Multisensor architecture; faster than PCS 7 SI engagement
Applikon V-Control	Pre-engineered OPC-UA integration available	Supported via OPC-UA integration point

Integration Philosophy Difference

PCS 7: "We provide the industrial automation platform. You bring 3rd-party bioreactors and instruments. We integrate them via industrial protocols (PROFIBUS, HART, OPC-UA). Pre-engineered kits exist for Sartorius Biostat and Applikon, but still require significant engineering effort and Siemens Solution Partner engagement."

• Native sensor support — Hamilton and Mettler Toledo probes plug directly into QB Multisensor via Modbus RS485. No HART adapters, no Foundation Fieldbus, no commissioning overhead

• Modern protocols as standard — MQTT, REST API, SQL are native. PCS 7 requires custom gateways

• No 32-bit OPC limitation — PCS 7's OPC DA server only accepts 32-bit clients. QB Control uses OPC UA natively

• No Foundation Fieldbus headaches — PCS 7 users report FF segment losses and complexity. QB Control doesn't use FF

• Auto-discovery vs. manual commissioning — plug in a QB Module and it appears in Inventory automatically; no STEP 7 configuration

PCS 7's Integration Advantage

• Pre-engineered OEM kits for Sartorius Biostat STR Gen 3 (integrates 50–60% faster than greenfield PCS 7 project)

• MTP (Module Type Package) support for NAMUR-standard modular manufacturing (important at production scale)

• Broader industrial protocol dominance — PROFINET/PROFIBUS are industry standards in German manufacturing

• Proven track record at production scale with thousands of multi-vendor installations

• Enterprise-grade integration — connects to MES (SAP, Syncade), ERP, LIMS at large pharma level

6. Software Module Comparison

Module-by-Module Mapping

Capability Area	PCS 7 Component	QB Control Module	Comparison Notes
Device Management	AMS Device Manager + manual PROFIBUS/PROFINET commissioning	Inventory (auto-discovery, device status, licensing)	QB is 90% faster; no manual I/O assignment
System Configuration	STEP 7 / TIA Portal Explorer (visual hierarchy builder)	System (visual resource allocation, device binding, preview)	QB no-code; PCS 7 more powerful for large plants
Process Configuration	Control Studio (CFC, SFC editors) + Batch configuration	Process (visual P&ID binding, auto-generated flowsheets, versioning)	QB faster; PCS 7 more ISA-88 formal
Process Visualization	WinCC (Windows-based SCADA HMI builder)	P&ID (auto-generated, drag-and-drop customizable, real-time updates)	QB auto-generates; PCS 7 manual designer (Visio + scripting)
Batch Management	SIMATIC BATCH (ISA-88 full procedural model)	Recipe (Designer Board / Batch Board / Executions Board)	QB visual + bioprocess templates; PCS 7 formally ISA-88
Advanced Control	Function Block Diagram (FBD), Structured Text (ST), IEC 61131-3 code	Operations (Start, Wait, Conditional, Counter, Polygon, PID, Split, Merge, Manual)	QB pre-built; PCS 7 requires custom programming
Services Catalog	No equivalent (custom blocks per project)	Services (37 pre-built bioprocess templates across 10 categories)	QB unique advantage — instant strategy deployment
Service Profiles	No equivalent (custom parameter sets)	Service Profiles (reusable templates for pH, temp, gas, stirring, foam)	QB unique advantage — standardized parameter management
Alarm Management	DCS Alarm Management (ISA-18.2 + custom escalation)	Alarms (ISA-18.2 conformance, watchlist, smart acknowledgement)	Both ISA-18.2 compliant
Data Visualization & Trending	SIMATIC Historian + InfoBatch trending	Graphs (live + historical, multi-parameter overlay, export CSV)	PCS 7 more powerful historian; QB adequate for lab/pilot
Batch Reporting	InfoBatch + Syncade MES integration	Reports (automated batch summaries, PDF/DOCX, data export)	PCS 7 enterprise-grade; QB sufficient for biotech scale
Batch Tracking	SIMATIC BATCH Historian with event logging	Runs (per-process batch ID, user tracking, execution status)	Both adequate; PCS 7 more detailed
Calibration Management	AMS Device Manager (external to PCS 7)	Calibration (built-in, status tracking, Hamilton/pump methods, reminders)	QB integrated; PCS 7 external tool
Audit Trail	Event Chronicle (immutable, CFR Part 11 compliant)	Audit Trail (CFR 21 Part 11, immutable logs, CSV export)	Both strong
Access Control	Windows-based user management + WinCC roles	Users & Roles (RBAC, granular per-module permissions, LDAP/AD integration)	QB modern web-based; PCS 7 Windows-dependent
Notifications	Custom WinCC messaging + email gateways	Notifications (email, SMS, escalation chains, templates, digest mode)	QB richer out-of-box
Backup & Recovery	System backup utility (incremental, image-based)	Backup & Export (scheduled, selective, integrity verification, cloud-capable)	Comparable
License Management	SIMATIC License Key (hardware-locked, per-feature)	License (feature-based, device-based, flexible tiers, online/offline validation)	QB more transparent licensing
Model Predictive Control (MPC)	PredictPro (economic optimizer for production scheduling)	✗ Not available	PCS 7 wins
Process Analytical Technology (PAT)	SIMATIC PAT Spectral (embedded analytics)	✗ Not available	PCS 7 wins
Digital Twin	Mimic 6.LTS (process simulation & training)	✗ Not available	PCS 7 wins
MES Integration	Syncade, SAP, custom via OPC-UA	✗ REST API integration point (not native MES)	PCS 7 wins; QB provides API hookpoint
AI/ML Capabilities	DeltaV Neural, Revamp AI toolkit	✗ Not available	PCS 7 wins
Edge Computing	PCS neo (next-gen DCS, separate product)	QB Edge (local Linux processor, runs QB Control natively)	Different architecture; both valid

Key Observation: SIMATIC APL vs. QB Services

SIMATIC APL (Advanced Process Library) — PCS 7's equivalent to QB Services — contains 300+ pre-built function blocks for generic process control (PID, cascade, feedforward, sequencing). However:

• APL blocks are generic process control primitives , not bioprocess-specific

• Each bioprocess application still requires custom CFC/SFC design to orchestrate APL blocks into a cohesive control strategy

• Engineering effort per application: 2–4 weeks for a standard fermentation controller (PCS 7 expert required)

QB Services — 37 pre-built bioprocess-specific templates:

• Each service is a complete control strategy (e.g., "pH Control by Base & CO2" includes PID tuning, setpoint ramps, safety interlocks)

• No orchestration required; add to recipe and execute

• Engineering effort: 0 (scientist selects template, configures parameters, runs)

This is the fundamental gap: APL is a toolkit; QB Services are ready-to-deploy applications.

7. Services Catalog & Rapid Deployment

One of QB Control's most powerful advantages over PCS 7 is the Services Catalog — a library of 37 pre-built, parameterized service templates for bioprocessing that can be loaded and executed within minutes. This fundamentally changes how quickly scientists can deploy and modify control strategies.

What Are Services?

In QB Control, a Service is a pre-defined control action that directly commands hardware. Services are the atomic building blocks of process automation — they bridge the gap between software logic (Operations) and physical hardware (QB Modules). Services come in two types:

• Autocomplete Services — execute a discrete task and close automatically (e.g., Transfer volume by pump, Add gas volume by Mass Flow Controller)

• Continuous Services — run indefinitely until explicitly stopped (e.g., Set Agitator Speed, Temperature Control by TCU, pH Control by Base and CO2)

The Complete Services Catalog (v1.9)

Category	Services	Count	Types
pH Control	pH Control by Base & CO₂, pH Control by Base & Acid, pH Control by One Pump, pH Control One Pump PID, pH PID Control, PID Reference	6	Continuous
Temperature Control	Temperature Control by TCU, Temperature Control by Heating Mat, Temperature Control by Steam & Water, Split Temp Control, Set Circulator Temperature, Set Heating Mat Power	6	Continuous
Pump & Feed Control	Feed Service, Autosubstrate, Set Pump Flow Rate, Set On/Off Pump, Set Centrifugal Pump RPM, Transfer Volume by Pump, Transfer Bolus Mass, Transfer Bolus Volume, Gravimetric Feeding by Peristaltic Pump	9	Continuous + Autocomplete
Gas Control	O₂ Control, Advanced O₂ Control, Set Mass Flow Controller Flow, Set Sparger Mass Flow	4	Continuous
Gas Volume Delivery	Set Sparger Volume & Mass Flow	1	Autocomplete
Sampling	Automated Sampling, Sample by Syringe Pump, Sampler Cleaning	3	Continuous + Autocomplete
Stirring & Agitation	Stirring Service, Set Agitator Speed	2	Continuous
Foam Control	Foam Control, Foam Control by Antifoam Reagent	2	Continuous
Valve Control	Set Selector Valve Position, Set Valve Position	2	Continuous
LED & Light Control	LED Control, LED Control Scheduler	2	Continuous
Total		37	32 Continuous + 5 Autocomplete

Service Profiles — Reusable Parameter Templates

Available Profile Types:

• pH Control & pH PID Control profiles (tolerance, base amount, CO2 parameters)

• Temperature Control profiles (heating/cooling setpoints, ramp rates)

• Gas Flow Control profiles (SCCM, sparger types, cascade parameters)

• Stirring profiles (RPM setpoints, ramp duration)

• Foam Control profiles (antifoam volume, delay, threshold)

Example: Standardized pH Control Profile

A research team develops a proven pH control strategy for CHO fermentation:

• Base pump: 5M KOH

• Base flow rate: 2 mL/min

• CO2 flow rate: 0.5 SLPM

• pH tolerance: ±0.1 units

• PID tuning: Kp=0.8, Ki=0.02, Kd=0

This profile is saved in QB Control's Service Profiles library. Any researcher can now apply this exact configuration to a new CHO batch in 10 seconds instead of manually re-entering values.

How Services Transform Experiment Deployment

Workflow Step	PCS 7 Approach	QB Control with Services Catalog
Define control strategy	Write IEC 61131-3 code or configure complex APL function blocks in CFC	Select service template from catalog (e.g., "pH Control by Base and CO2")
Set parameters	Enter values in Control Studio CFC editor, requires trained PCS 7 engineer	Load a saved Service Profile or fill visual form with 5–10 parameters
Validate parameters	Peer review + unit testing (CFC test framework)	Pre-validated services (GAMP 4 baseline); parameters reviewed by domain expert
Change control logic	Reprogram APL blocks, re-validate CFC, re-test	Swap service template (e.g., switch from "pH by Base & CO2" to "pH by Base & Acid") — 5 minutes
Deploy to process	Commission in TIA Portal, configure PROFINET addresses, test, validate — weeks	Add service to process definition, it appears in Recipe Designer — minutes
Try different strategy	New engineering engagement (1–2 weeks)	Select different service from catalog, apply different profile — instant
Escalate from DoE to pilot scale	Re-engineer control loops for larger vessel, rewrite CFC, re-validate	Export process config + service profiles; import to larger QB Edge — 30 minutes

The Services + Recipe Integration Advantage

Services are the execution layer within QB Control's Recipe system. When building a recipe in the Designer Board , the available Services panel shows only services defined in the assigned process — ensuring safety and correctness. This means:

• Load services from catalog → define which control strategies are available for a process

• Build recipes visually → drag services into the workflow alongside Operations (Wait, Conditional, Split, Merge, PID, Polygon, Counter, Manual Operation)

• Execute with one click → the Batch Board tracks every service execution in real-time

• Switch strategies instantly → change the service template without rebuilding the recipe

This is a capability PCS 7 cannot match at the lab/pilot scale. PCS 7 requires engineering effort (IEC 61131-3 reprogramming, CFC redesign, commissioning, validation) for every control strategy change. QB Control makes it a menu selection.

Scenario	PCS 7 Time	QB Control Time	QB Advantage
Switch pH control from CO2+Base to Acid+Base	2–3 weeks (reprogram APL blocks, CFC redesign, validation)	5 minutes (select "pH Control by Base & Acid" service)	~200× faster
Add foam control to an existing process	2–3 weeks (add ET 200 I/O, reprogram CFC, test)	10 minutes (add QB Foam Sensor, select "Foam Control" service, configure antifoam volume)	~150× faster
Change temperature control from setpoint to ramp profile	1–2 weeks (modify CFC PID block, add ramp logic)	2 minutes (configure service ramp parameters or swap "Temperature Control by TCU")	~500× faster
Deploy completely new experimental control strategy (e.g., DO cascaded to O2/air ratio)	4–8 weeks (full PCS 7 engineering cycle)	1–2 hours (select "Advanced O₂ Control" service, build recipe, test batch)	~200× faster
Replicate proven 2-bioreactor setup to 6-bioreactor farm	2–4 weeks (copy PROFINET config, re-commission ET 200s, re-validate CFC)	30 minutes (Process Import/Export + Service Profiles replication)	~100× faster

8. Recipe Engine — Designer Board vs. SIMATIC BATCH

Overview & Philosophy

The Recipe Module is the core automation engine of QB Control. It translates complex biotechnological protocols into executable digital workflows by combining Operations (logic) and Services (hardware actions).

SIMATIC BATCH is the ISA-88 batch execution framework for PCS 7. It manages Procedures, Operations, Phases, and Equipment according to formal hierarchical structure.

These represent fundamentally different paradigms — QB Control uses visual, bottom-up workflow design; PCS 7 uses formal, top-down procedure hierarchy.

8.1 QB Control: Recipe Designer Board

The Designer Board is a visual, drag-and-drop workspace for building process logic using a directed acyclic graph (DAG) approach — no programming required.

Available Operations (Logic Blocks):

Block Type	Category	Function
Start	Standard	Begin recipe execution
Wait	Standard	Time-based pause (seconds to hours)
End	Standard	Complete recipe execution
Stop	Standard	Terminate execution path
Conditional	Advanced	Evaluate real-time process variables (e.g., "if pH > 6.8, then add base")
Wait Until	Advanced	Pause execution until sensor condition is met (e.g., "wait until OD > 2.0")
Counter	Advanced	Loop control with iteration count (e.g., "repeat sampling 10 times every 30 min")
Polygon	Advanced	Piecewise linear mapping (X→Y with 10+ configurable points) — for temperature ramps, DO cascades, pressure profiles
PID	Advanced	Built-in PID controller block (set Kp, Ki, Kd inline)
Split	Advanced	Fork into parallel execution paths (e.g., start agitation + temperature control simultaneously)
Merge	Advanced	Join parallel paths back together (synchronization point)
Manual Operation	Advanced	Pause for human confirmation (physical sampling, media addition, wetware inspection)

Available Services (Hardware Actions):

• All 37 service templates from the Services Catalog (filtered by process)

• Services appear as draggable blocks organized as Autocomplete or Continuous

Key Designer Features:

• Undo/Redo visual history for all design changes

• Copy/Paste blocks or entire sequence fragments for rapid workflow replication

• Configure Parameters per block (setpoints, wait durations, sensor thresholds)

• Export as Image for compliance documentation and peer review

• Recipe Versioning with status lifecycle: Draft (Yellow) → Verified (Blue) → Validated (Green) → Archived (Red)

• No coding required — scientists design recipes directly

8.2 QB Control: Batch Board & Executions Board

Batch Board — high-level overview of all active and historical batch executions:

• Status Indicators: During Execution (Blue), Completed (Green), Aborted (Red), Paused (Yellow)

• Audit Trail: Logs Execution Start, Execution Finish, Started By user ID for every batch

• Filtering: By system, process, status, date range

• Export to CSV for external reporting or audit

• Detailed Execution View: Click information icon to access Recipe Status dashboard:

• Step-by-step execution status per block (Completed, Failed, Paused, Aborted)

• Failure & abort information with root cause

• Real-time progress tracking (total blocks, completed, in-progress, pending, failed)

• Export as Image — download execution flow graphic for regulatory reports

Executions Board — historical analytics:

• Batch lifecycle view (when started, duration, success/failure)

• Parameter capture (pH setpoint, temperature, feed rate used per batch)

• User tracking (who started, who paused/aborted)

• CSV export for external analysis (statistical analysis, DoE evaluation)

8.3 QB Control: Pre-Execution Safety Checklist

• Device Alarms Verified — all devices idle, no active alarms

• Hardware State Confirmed — all modules responding, connectivity OK

• Lab Equipment & Media Confirmed — researcher manually checks media bottles, seed culture viability, tubing sterilization

• Wetware Integrity Checked — researcher visually inspects fluidic connections, sterile filters, connector sealing

• Resource Conflict Blockade — if services in the recipe are already executing (from another batch on same process), system blocks start with notification

This mandatory checklist is a QB Control innovation not found in SIMATIC BATCH — it bridges the gap between digital control logic and physical lab safety.

8.4 PCS 7: SIMATIC BATCH Engine

SIMATIC BATCH is PCS 7's ISA-88 batch execution framework. It structures batch recipes into:

Procedure Model (Top-Down):

• Batch Recipe — the top-level definition (e.g., "CHO Fermentation Protocol")

• Procedure — major sections of the batch (e.g., "Inoculation", "Exponential Growth", "Harvest")

• Unit Procedure (UP) — tied to specific equipment (e.g., "Fermentation Unit")

• Operation — discrete actions (e.g., "Set pH to 7.0")

• Phase — lowest-level control action (e.g., "PID loop for pH control")

Transition Model:

• Recipes are represented as state machines (ISA-88 Sequential Function Charts / SFC)

• Transitions between states require entry/exit conditions (sensor values, timer expiry, human confirmation)

• Complex inter-unit coordination via SIMATIC BATCH Executive

Configuration Tool:

• SIMATIC BATCH Configurator (integrated into TIA Portal)

• Recipes defined via structured editor, not visual workflow

• Parameters edited in tables (less intuitive than visual forms)

Execution Monitoring:

• SIMATIC BATCH Monitor (Windows-based HMI)

• Shows current step, phase status, transition progress

• Operator can pause, resume, abort, reset

Recipe Versioning:

• Recipe library with approval workflows

• Version tracking via document number + revision

• Change management tied to engineering change requests

8.5 Recipe Engine vs. SIMATIC BATCH — Detailed Comparison

Capability	SIMATIC BATCH	QB Control Recipe Engine
Recipe Design Interface	Structured text editor in TIA Portal (semi-visual SFC)	Drag-and-drop visual DAG (Designer Board)
Coding Required?	Minimal (state machine logic) but requires formal training	No coding — scientists design directly
Learning Curve	Steep (6+ weeks for formal ISA-88 certification)	Gentle (2–3 days for scientists)
Parallel Execution	Batch Executive with unit arbitration	Split/Merge blocks for parallel paths within recipe
Conditional Logic	SFC transitions (state-dependent)	Conditional blocks evaluating real-time sensor data in-silo
Human-in-the-Loop	Manual phase with operator prompts (formal ISA-88 model)	Manual Operation block — pauses for physical confirmation
Loop Control	SFC loop constructs (implicit state repetition)	Counter block — explicit iteration count
Ramp/Profile Logic	Custom function blocks (CFC/ST code)	Polygon block (piecewise linear, configurable points)
Execution Monitoring	SIMATIC BATCH Monitor (Windows, proprietary UI)	Batch Board (web browser, real-time color-coded status)
Recipe Versioning	Library with approval workflows (document-centric)	Draft → Verified → Validated → Archived (status-based)
Execution History	Historian (centralized database)	Executions Board (CSV export, per-batch audit trail)
Pre-Execution Safety	Operator checklist (optional, not enforced by system)	Mandatory Pre-execution Checklist (enforced by software)
Failure Handling	Batch abort with manual recovery (requires operator expertise)	Pause + resume or auto-recovery logic configurable
Diagram Export	Not standard (requires custom scripts)	Export as Image (one-click)
Time to Create Recipe	Days to weeks (engineering + validation)	Hours to days (visual design + service selection)
Time to Modify Recipe	1–2 weeks (re-engineer SFC transitions, re-validate)	Minutes to hours (visual edit + service swap)
GMP Compliance	ISA-88 formal compliance (best-in-class)	Batch concepts + mandatory checklists + audit trail

Key Insight: Visual vs. Formal

SIMATIC BATCH advantage: Perfect ISA-88 compliance enables formal technology transfer from lab recipe → production batch recipe. Recipe structure is standardized across all SIMATIC BATCH users.

9. Regulatory Compliance Comparison

Standards & Certifications

Standard	PCS 7 Status	QB Control Status	Comparison Notes
FDA 21 CFR Part 11	✓ Full compliance (electronic records, signatures, audit trails)	◐ Partial conformance (audit trails, RBAC, data integrity; electronic signatures on roadmap)	PCS 7 fully compliant; QB Control supports core requirements except e-signatures
EU Annex 11	✓ Full compliance (computerized system validation framework)	✓ Compliance support (CSV documentation templates provided)	Both enable qualification; QB Control provides CSV toolkit
GAMP 5	Category 5 (custom CFC/SFC code) — unless APL blocks are used as pre-validated components	Category 4 (configurable software)	QB Control has lower validation burden — see details below
ISA-18.2 (Alarm Management)	✓ Full compliance (suppressed, out-of-service, acknowledgement workflows)	✓ Conformance (alarm handling per ISA-18.2 principles)	Both support alarm standards
ISA-88 (Batch Process Control)	✓ Full formal compliance (best-in-class)	◐ Follows batch concepts but not formally ISA-88 certified	PCS 7 stronger for formal pharma handover
ALCOA+ (Data Integrity)	✓ Full implementation (Attributable, Legible, Contemporary, Original, Accurate, plus Complete, Consistent, Enduring)	✓ Full implementation	Both provide ALCOA+ principles
Electronic Signatures	✓ Cryptographic, non-repudiable (via WinCC)	◐ Planned (on roadmap; not in current version)	PCS 7 leads; QB roadmap item
Audit Trail	✓ Event Chronicle (immutable log database, searchable via InfoBatch)	✓ Immutable, exportable (CSV), searchable	Both comprehensive; PCS 7 more database-centric
Change Management	✓ Engineering change orders (ECP) + version control in STEP 7	✓ Recipe versioning + configuration export history	Both support formalized change control
Computer System Validation (CSV)	Category 5 → IQ/OQ/PQ, custom test scripts, extensive documentation	Category 4 → reduced validation scope, standardized test scripts	QB Control ~60% faster CSV cycle

GAMP 5 Category 4 vs. Category 5 — The Critical Difference

GAMP 5 Category 4 (Configurable Software):

• Software is pre-validated by vendor (GAMP 4 baseline established)

• Client validation focuses on configuration correctness (did you set parameters right?)

• Validation evidence: design review, integration testing, user acceptance testing (limited scope)

• Validation timeline: 4–8 weeks

• Validation cost: $10K–$50K

• Typical tools: Salesforce, SAP, QB Control

• Change management: Configuration changes (not re-validated); functional changes require vendor patch cycle

GAMP 5 Category 5 (Custom Software):

• Software is custom-built for this client (no pre-validation)

• Client validation must include code review, unit testing, integration testing, system testing

• Validation evidence: requirements, design documents, test cases, test results, traceability matrix

• Validation timeline: 3–6 months

• Validation cost: $50K–$200K

• Typical tools: custom IEC 61131-3 code, custom CFC/SFC designs in PCS 7

• Change management: Code changes require full re-validation

PCS 7 Category 5 Burden:

When PCS 7 users implement custom CFC blocks for fermentation control, they incur full Category 5 overhead:

• Write IEC 61131-3 code or draw CFC diagrams

• Document design intent (functional spec)

• Write and execute unit tests

• Validate on actual hardware (IQ/OQ/PQ)

• Document traceability to requirements

• Establish baseline for future change control

A typical fermentation controller (pH + temperature + DO + feed) requires 300–500 lines of CFC — all subject to validation.

• pH Control service: pre-validated by QB Systems (GAMP 4 baseline established)

• Client validation: does your pH range of 6.5–7.5 match the service setup? Yes/No.

• No unit testing of PID code required (service is pre-tested)

• No code review required (service is pre-approved)

• Configuration changes (adjust Kp, Ki, Kd) do not require re-validation (part of Category 4 validation scope)

This single difference (Category 4 vs. 5) saves biotech firms $40K–$150K per system and reduces deployment timeline by 3 months.

Compliance Value for QB Control

Compliance Aspect	PCS 7	QB Control	QB Benefit
Time to CSV	3–6 months	4–8 weeks	~5× faster
Validation Cost	$50K–$200K	$10K–$50K	60–75% savings
GAMP Category	5 (custom code)	4 (configured)	Reduced scope
Code Review Burden	Yes (full CFC audit)	No (services pre-validated)	Simpler audit trail
Change Control Overhead	High (code changes = re-validation)	Low (configuration changes = no re-validation)	Faster iterations
Training Compliance	Requires PCS 7 expert certification	Minimal (web form expertise)	Lower operational risk
Audit Readiness	Historian database (proprietary queries)	CSV export + open format	More auditor-friendly

Regulatory Position: Where Each Wins

PCS 7 Regulatory Strength:

• Pharma production scale (GMP 200+ L bioreactors): PCS 7's ISA-88 formal compliance is required for regulatory submissions

• Enterprise audits by FDA/EMA inspectors: Thousands of PCS 7 installations in pharma mean regulators are familiar with the platform

• Batch handover from R&D to production (technology transfer): ISA-88 recipe structure matches formal pharma batch record format

• Hyper-V multi-product isolation: Separate OS servers for separate products simplifies validation segregation

• Advanced control documentation: Tuning records for MPC, PAT systems are formally governed by PCS 7

• GAMP 4 configuration drives faster qualification timelines (critical for startup/CDMO speed-to-market)

• Single-use bioprocessing (no CIP/SIP complexity) has simpler validation scope than DCS systems

• Lab-scale pilot programs (1–50 L, not GMP-regulated) can be validated in weeks, not months

• Modular, self-contained processes (each bioreactor is independent) reduce integration complexity

• Web-based platform (no Windows CAL licensing) is simpler for IT/pharma auditors to govern

10. Pricing, Licensing & TCO Analysis

Executive Pricing Comparison

Component	PCS 7	QB Control	Ratio
Software License (base)	EUR 50K–150K	$15K–25K	3–8× higher
Hardware (typical setup)	EUR 30K–80K (AS 410 + ET 200 I/O)	$20K–100K (QB Edge + modules)	1–3× higher
System Integrator (typical project)	EUR 75K–250K (500–1,200 hrs @ €150–300/hr)	$0 (self-setup)	∞ (QB requires none)
Annual Recurring Costs	~15–20% of license (SUS + maintenance)	$0–5K (optional tiered support)	10–20× higher
5-Year Total Cost of Ownership (4-bioreactor lab)	EUR 380K–690K (~$410K–750K USD)	$95K–135K	3.8–7.9× difference

5-Year TCO Breakdown: 4-Bioreactor Lab Scenario

PCS 7 Path (EUR, converted to USD at 1.08 exchange)

Line Item	Cost (EUR)	Cost (USD)	Notes
Initial Setup (Year 1)
SIMATIC Software Suite (engineering + runtime + BATCH + 4 CALs)	80,000	86,400	Mid-range per PO contract model
AS 410 Controller + ET 200 I/O racks (2 controllers, mixed I/O)	50,000	54,000	Redundancy adds ~EUR 20K–30K
System Integration (700 hours @ EUR 200/hr)	140,000	151,200	Includes engineering, commissioning, validation planning
GAMP 5 Category 5 Validation (initial)	60,000	64,800	12 weeks of external consultant work
Windows Server 2024 + CALs (2 servers, engineering + OS)	10,000	10,800	Server licensing + workstation CALs
Year 1 Subtotal	340,000	367,200
Years 2–5 Recurring Costs
SUS (Maintenance & Support) @ 16%/year	51,200	55,296	EUR 12,800/year × 4 years
Additional SI Work (avg. 100 hrs/year @ EUR 200)	80,000	86,400	Configuration changes, upgrades, troubleshooting
Windows CAL renewals & OS licensing	12,000	12,960	Pro-rata across 4 years
Unplanned support incidents (estimated)	25,000	27,000	Beyond SUS, e.g., WinCC crashes, revalidation
Years 2–5 Subtotal	168,200	181,656
5-Year Total	~508,200 EUR	~548,856 USD

Line Item	Cost (USD)	Notes
Initial Setup (Year 1)
QB Control Software (Perpetual License)	18,000	One-time, covers 4 bioreactors + unlimited experiments
QB Edge Controller (1 unit)	12,000	Industrial PC + pre-loaded QB Control
QB Modules (4× PoE liquid handling modules + 1× Sensor Hub)	45,000	Complete hardware for 4-bioreactor setup
Training (QB Systems Online Portal + documentation)	1,500	Self-paced, included in license
GAMP 5 Category 4 Validation (initial)	22,000	4–5 weeks of configuration-based qualification
Year 1 Subtotal	$98,500
Years 2–5 Recurring Costs
Support (Optional: Standard Tier @ $3K/year)	12,000	4 years; can reduce to Basic ($1.5K/yr) or zero
Sensor calibrations & consumables (not QB-specific)	6,000	Universal Hamilton/Mettler Toledo sensors
OS updates & security patches	0	Browser-based; no Windows licensing needed
Years 2–5 Subtotal	$18,000
5-Year Total	~$116,500

Key Differences in 5-Year TCO

Factor	PCS 7	QB Control	Impact on QB Advantage
System Integrator Cost	EUR 140K + ongoing SI time	$0 (self-setup)	EUR 140K+ savings for QB
Annual Maintenance (SUS)	EUR 12.8K/year × 4	$0 mandatory (optional $3K/yr)	EUR 51.2K savings for QB
Software License (perpetual vs. per-PO)	EUR 80K upfront + SUS escalation	$18K one-time	EUR 62K+ savings for QB
Validation Burden	EUR 60K, 12 weeks, GAMP 5 Cat 5	$22K, 4 weeks, GAMP 5 Cat 4	EUR 38K + 8 weeks saved for QB
Windows Infrastructure	EUR 10K + CAL renewals	$0 (browser-based)	EUR 12K+ savings for QB
Unplanned Support & Incidents	EUR 25K estimated	Minimal (stable platform)	EUR 25K savings for QB
Net 5-Year TCO Difference	~EUR 508K	~USD 116.5K	QB Control is 74% cheaper

Licensing Model Comparison

Dimension	PCS 7	QB Control
License Type	Per-PO (100, 1,000, 5,000 points) with separate engineering/OS/BATCH modules	Perpetual (one-time purchase, unlimited experiments)
Runtime Model	Engineering License (unlimited edits) + separate Runtime OS licenses	Included in perpetual license; no runtime fees
BATCH Module	Separate license module for ISA-88 batch control	Included in base QB Control suite
CAL Costs	Per-workstation Client Access License (CAL) for HMI viewers	Browser-based; no CALs required (any device, any user)
Annual Renewal	SUS (Maintenance) required: ~15–20% of license cost/year for updates & support	Optional: Basic ($1.5K), Standard ($3K), Premium ($6K) per year — can scale to zero
Upgrade Path	Version upgrades require re-licensing (e.g., PCS 7 v9.0 → v9.1 incurs additional cost)	Annual software updates included in perpetual license
Multi-Site Licensing	Separate license per site (plant-wide PCS 7 deployments multiply costs)	Single perpetual license covers single QB Edge (multi-QB Edge requires additional licenses)
Flexibility	Rigid tier-based model; moving between PO counts requires license negotiation	Transparent, usage-based optional support tiers
True Cost of Ownership	Escalating : SUS grows with inflation, forced upgrades consume budget	Fixed : Perpetual license cost is sunk; support is optional and capped

Hidden Costs in PCS 7

Often overlooked, these add EUR 25K–50K+ over 5 years:

• Windows CALs — Each HMI workstation requires CAL ($120–200/seat/year); multi-site deployments mean 5–10 workstations

• DBA Support — PCS 7's MSSQL historian database requires periodic optimization and backup management

• Network Engineering — PROFINET commissioning, PROFIBUS segment management, firewall rules for OPC DA/UA

• Consulting for Change Management — GAMP 5 Category 5 changes (code modifications) trigger revalidation; external consultants often required

• Hardware Refresh Cycles — Dell workstations + AS 410 hardware have end-of-life; replacement cycles drive capex every 6–8 years

• Backup/Disaster Recovery — PCS 7 projects typically require hot-standby redundancy setup (FMR, additional hardware, configuration time)

• Version Upgrade Cycles — Siemens releases major versions every 2–3 years; staying current often requires re-licensing and re-validation

11. Industry Fit Analysis

Biotech: Upstream Process Development (1–10 L bioreactors, multi-clone screening)

Criterion	PCS 7	QB Control	Winner
Time to first experiment	12–16 weeks	2–3 days	QB ★
Cost to set up for 6 bioreactors	EUR 450K–550K	$95K–120K	QB ★
Ability to run DoE (Design of Experiments) in parallel	Yes, but requires SI planning	Yes, native multi-vessel support	QB ★
Recipe modification speed (e.g., change feed strategy)	Days–weeks (re-code, revalidate)	Minutes (drag-drop recipe editor)	QB ★
Regulatory burden (GAMP 5 category)	5 (custom code) — 12–24 weeks validation	4 (configurable) — 4–7 weeks	QB ★
Hardware cost for 6 bioreactors	EUR 50K–80K	$45K–60K	QB ★
Multi-site lab replication (e.g., US + EU labs)	Expensive per-site licensing	Single perpetual license covers all QB Edges (pay per QB Edge hardware only)	QB ★
Overall Industry Fit	Over-engineered for this scale	Purpose-built	QB Control

Pharmaceutical: GMP Manufacturing (100–250 L production bioreactors)

Criterion	PCS 7	QB Control	Winner
Scale capability (>100 L)	Proven to 20,000+ L	Lab-to-pilot (~50 L ceiling)	PCS 7 ★
Regulatory track record (pharma approvals)	25+ years, >100 FDA approvals	<5 years, emerging track record	PCS 7 ★
ISA-88 Full Batch Compliance	Formally certified	Follows concepts, not formally certified	PCS 7 ★
Redundancy & Safety (SIL 3 capable)	Yes (FMR, SIS integration)	Not SIL-rated	PCS 7 ★
MES Integration (EBR, equipment arbitration)	Native Syncade integration	REST API bridge (requires custom integration)	PCS 7 ★
Validation burden & cost	High (Category 5)	Lower (Category 4)	QB ★
Multi-protocol support (PROFIBUS, HART, FF)	Yes	OPC-UA, Modbus, MQTT, REST	PCS 7 ★
Overall Industry Fit	Industry standard; required for large-scale GMP	Applicable for process dev leading into PCS 7 production	PCS 7

CDMO (Contract Development & Manufacturing): Scale-flexible, Multi-client Projects

Criterion	PCS 7	QB Control	Winner
Speed to onboard new client process	Weeks (SI required)	Days (import recipe, configure, deploy)	QB ★
Cost per parallel client project (10–50 L each)	High (SUS per client site)	Low (perpetual license, pay per QB Module hardware)	QB ★
Ability to scale from R&D to production on same platform	Partial (DeltaV Lab → DeltaV PK → DeltaV Prod)	Partial (QB Control → handoff to DeltaV/PCS 7)	PCS 7 ★
Pilot-scale campaign flexibility (vessel rotation, protocol changes)	Slow (GAMP 5 revalidation required)	Fast (GAMP 4 change control, Category 4 advantage)	QB ★
Regulatory compliance demonstration to clients	Mature , 25+ years proven	Emerging, <5 years in field	PCS 7 ★
Optimal Use	PCS 7 for production-scale clients (100+ L) requiring GMP	QB Control for process dev and parallel pilot campaigns	Hybrid

Cosmetics & Personal Care: Formulation & Batch Manufacturing (20–100 L scale)

Criterion	PCS 7	QB Control	Winner
Speed to market (pilot batch to commercial production)	8–12 weeks (SI required)	2–4 weeks (self-configurable)	QB ★
Regulatory requirement (non-GMP or simplified GMP)	Can use PCS 7, but overkill	Perfect fit: Category 4, configurable	QB ★
Cost for 4-vessel formulation line	EUR 400K–600K	$85K–110K	QB ★
Multi-recipe management (batch switching)	Yes, but requires ISA-88 planning	Yes, native batch scheduling (drag-drop)	QB ★
Integration with LIMS (recipe tracking, COA)	Syncade-based, complex	REST API + SQL (simpler integration)	QB ★
Overall Industry Fit	Not ideal; expensive for market demands	Excellent; right-sized for batch manufacturing	QB Control

Food & Beverage: Fermentation & Batch Cooking (Yogurt, Beer, Kombucha, 10–100 L)

Criterion	PCS 7	QB Control	Winner
Regulatory requirement (FSMA, SQF)	Can use PCS 7	QB Control sufficient with audit trail	QB ★
Speed to deploy a new fermentation recipe	6–10 weeks	1–2 weeks	QB ★
Cost for small-scale operation	EUR 350K–500K overkill	$80K–110K optimal	QB ★
Hardware modularity (add/remove vessels for seasonality)	Fixed design	Plug-and-play PoE modules	QB ★
Overall Industry Fit	Over-engineered	Purpose-built	QB Control

Academic Research: Multi-PI Labs, Teaching

Criterion	PCS 7	QB Control	Winner
Initial capital cost	EUR 400K–600K	$90K–130K	QB ★
Annual licensing cost to researchers	EUR 12.8K SUS + CALs	$0 (perpetual) or $3K support	QB ★
Multi-user concurrent access (grad students, postdocs)	Per-seat licensing model	Browser-based; unlimited concurrent users	QB ★
Ease of learning (non-controls engineers)	Steep (IEC 61131-3)	Visual, no coding required	QB ★
Ability to teach process control concepts	Yes, but overkill	Yes, optimized for learning	QB ★
Overall Industry Fit	Not used in academia due to cost	Excellent for teaching & research	QB Control

12. What QB Control Can Replace

Full Replacement Scenarios

• Lab-scale bioprocessing (1–10 L)

• Multi-clone screening, strain development, process optimization

• Parallel bioreactors with independent control strategies

• Rapid recipe iteration (e.g., DoE campaigns)

• Value: 75–85% cost reduction, 90%+ faster deployment

• When to replace : Any PCS 7 lab system being considered for new purchase → use QB Control instead

• Pilot-scale upstream (10–50 L), pre-production

• Process development leading into GMP manufacturing

• Technology transfer from lab to pilot

• Multi-parallel pilot campaigns for different client processes (CDMO)

• Value: 70–80% cost reduction, 80%+ faster recipe changes

• When to replace : PCS 7 pilot systems with 5+ bioreactors → QB Control for pilot fleet

• Process development & DoE (Design of Experiments)

• Rapid parallel testing of feeding strategies, aeration, agitation

• Frequent recipe modifications (daily changes across multiple vessels)

• Multi-factorial experimental designs

• Value: 10–100× faster experimentation (manual → automated DoE)

• When to replace : DeltaV/PCS 7 used primarily for process optimization → QB Control for 80% cost saving

• Single-use bioprocessing (SUB) and batch processing

• Sterile-once-use workflows with automated sampling, feeding, harvest

• Multi-parallel SU campaigns with independent batch records

• Value: Native single-use support without legacy baggage

• When to replace : Any new single-use platform selection → QB Control + QB Modules

• CDMO pilot-scale client project support

• Onboarding new client processes into parallel pilot vessels

• Rapid setup/teardown for recipe rotation

• Cost control per client campaign

• Value: Days instead of weeks to deploy; perpetual license across all clients

• When to replace : PCS 7 used for multi-client pilot work → QB Control for operational efficiency

• Academic research labs & teaching

• Multi-PI labs with concurrent research projects

• Undergraduate/graduate teaching of bioprocess control

• Shared bioreactor infrastructure

• Value: 90% cost reduction, browser-based multi-user access

• When to replace : Any PCS 7 considered for university → QB Control delivers equivalent capability at $90K instead of $500K

Partial Replacement Scenarios

• PCS 7 Production Bioreactor → QB Control for Monitoring + Analytics

• Keep PCS 7 running large-scale production (100+ L)

• Deploy QB Control as secondary platform for real-time visualization, data export, batch analytics

• OPC-UA bridge from PCS 7 historian to QB Control

• Value: Faster analytics, easier data access, reduced PCS 7 engineer load

• Scenario : Pharma company with DeltaV/PCS 7 production → add QB Control for process scientists to monitor/analyze without PCS 7 access

• PCS 7 Production → QB Control for Process Development (scaled-down)

• Keep PCS 7 for 200+ L production bioreactors

• Deploy QB Control for 10–50 L pilot/development parallel to production

• Identical recipe structure, but independent validation and change control

• Value: Faster process optimization; production platform remains stable

• Scenario : Pharma tech transfer: use PCS 7 for manufacturing, QB Control for upstream R&D leading into PCS 7

• PCS 7 Pilot with Multi-Protocol Needs → QB Control + OPC-UA Bridge

• PCS 7 retained for PROFIBUS/HART integrations (legacy instruments that QB doesn't support)

• OPC-UA links the two systems for unified data archiving

• Value: Simpler QB Control + specialized PCS 7 just for hard-to-integrate sensors

• Scenario : Legacy HART-only sensors → OPC-UA from PCS 7, QB Control for everything else

NOT a Replacement (PCS 7 Required)

Do NOT position QB Control against PCS 7 in these scenarios:

• Production-Scale GMP Manufacturing (>200 L)

• PCS 7 is industry standard, proven, required

• Red line : >100 L bioreactors, regulated manufacturing → PCS 7, full stop

• Multi-site, plant-wide process control

• PCS 7 excels at enterprise-wide DCS integrations

• Red line : More than 3 bioreactors on a single QB Edge, or multi-facility operations → PCS 7

• Safety Instrumented Systems (SIS) & hazardous processes

• PCS 7 is SIL 3-rated with formal certification

• Red line : Pressure vessels, explosive atmospheres, or any SIL rating required → PCS 7

• Advanced process control (MPC, APC, model-based optimization)

• PCS 7 has PredictPro, DeltaV has Neural, other DCS have native MPC

• Red line : Regulatory requirement for advanced control strategy → PCS 7

• PAT (Process Analytical Technology) integration with chemometric modeling

• PCS 7 ecosystem supports FTIR, NIR, Raman spectrometers with embedded chemometric models

• Red line : In-situ NIR or FTIR control loops required → PCS 7 or DeltaV

• Formal ISA-88 Batch Compliance with equipment arbitration

• PCS 7 BATCH is formally ISA-88 compliant with equipment arbitration for shared resources

• Red line : Large pharma audit requiring ISA-88 certification → PCS 7

13. Where QB Control Creates Superior Value

Value Proposition #1: Unified Hardware + Software (No Separate PLC + I/O Architecture)

The PCS 7 Problem:

PCS 7 requires separate procurement, engineering, and validation of:

• Central AS 410 controller (runs STEP 7, manages I/O scanning)

• Distributed ET 200 racks with individual I/O modules (digital/analog/special modules)

• PROFINET network configuration (switches, cabling, commissioning)

• Marshalling cabinets (wiring I/O from field devices into ET 200)

This creates 3 engineering cycles : hardware commissioning → network validation → software testing. Any change to I/O count or type requires revalidation.

Cost of this separation:

• EUR 30K–80K hardware (controllers + I/O modules)

• EUR 50K–100K system integration (PLC programming, PROFINET setup, marshalling wiring)

• 4–8 weeks commissioning time

• 8–12 weeks validation (GAMP 5 Category 5, full code review)

• Integrated processing + I/O in a single unit

• Power-over-Ethernet (one cable per module = power + data)

• Auto-discovery (plug module into PoE switch, QB Control recognizes it instantly)

• Pre-validated driver stack (no PROFINET commissioning)

• No marshalling cabinets, no separate wiring

Cost of unified approach:

• $45K–100K hardware (QB Edge + all QB Modules for 4–6 bioreactors)

• $0 system integration (plug-and-play)

• Hours to commissioning (unbox → connect → discover)

• 4–5 weeks validation (GAMP 5 Category 4, configuration review)

Quantified Value:

• EUR 50K–100K savings in hardware (no separate I/O racks)

• EUR 50K–100K savings in SI cost (no PLC programming, PROFINET setup)

• 4–8 weeks faster deployment (no hardware commissioning cycle)

• 8 weeks faster validation (GAMP 4 vs. 5 advantage)

Value Proposition #2: 37 Pre-Built Bioprocess Service Templates (vs. APL Generic Blocks)

PCS 7 includes APL (Advanced Process Library) with 300+ generic control blocks:

• PID regulators, ramp generators, limit handlers, alarm boxes

• Designed for any process : oil & gas, chemicals, water treatment, pharma

• Generic, not bioprocess-specific

To implement a bioprocess control strategy (e.g., pH control with acid/base dosing), an engineer must:

• Select PID block from APL

• Manually configure gains (KP, KI, KD) based on process knowledge

• Wire in limit handlers, anti-windup logic, manual override logic

• Test and tune (often requires multiple iterations)

• Validate via GAMP 5 Category 5 (full code review)

• If strategy changes (e.g., switch from acid/base pH to CO2+base), rewrite entire logic block, revalidate (weeks of work)

Cost of this approach:

• EUR 20K–40K engineering time (initial block design)

• 2–4 weeks development + testing

• EUR 30K–60K validation cost (GAMP 5 Category 5, code review)

• EUR 15K–30K per major control logic change (revalidation)

• pH Control (CO2+Base, Acid+Base, CO2 only, Base only, PWM modes)

• Temperature Control (jacket, immersion, internal coil, cascade)

• Dissolved Oxygen (single-gas, blend, cascade with agitation)

• Pressure (absolute, differential, cascade)

• Feeding (gravimetric, volumetric, peristaltic pump PWM)

• Sampling (time-triggered, event-triggered, batch-triggered)

• Sterile Fill (automated media addition with pressure control)

• Harvest (outlet valve control, sterile harvest cycles)

• Monitoring (multi-parameter observation, trend logging)

• Integration (sensor polling, PLC signals, external instrumentation)

Each service template includes:

• Pre-validated control logic (PID gains, limits, anti-windup)

• Built-in alarm and safety logic

• Integration with QB Recipe Designer (drag-drop into workflow)

• Service Profiles (save parameter sets as reusable templates)

To deploy a new pH control strategy in QB Control:

• Select "pH Control (CO2+Base)" service template

• Configure 5 parameters: setpoint, cascade limits, alarm thresholds

• Drag service into recipe workflow

• Validate (GAMP 5 Category 4, configuration review only = 2–3 days)

• To switch strategies : Replace template with "pH Control (Acid+Base)" (5 minutes, no revalidation required)

Cost of template-based approach:

• $0 engineering (templates are pre-built)

• Deployment in hours (not weeks)

• $3K–5K validation (GAMP 4, configuration review)

• $500–1K per control logic change (config change only, no revalidation)

• EUR 20K–40K saved on initial engineering (templates eliminate design work)

• EUR 20K–60K saved on validation (Category 4 vs. 5)

• 2–4 weeks faster first deployment

• 10–50× faster control logic changes (minutes vs. weeks)

Real-world scenario:

A biotech running a DoE on pH control strategies (test 3 different acid/base regimes across 4 parallel bioreactors):

• PCS 7 path : Re-code and revalidate each pH strategy = 3 × EUR 20K = EUR 60K, 3 × 2 weeks = 6 weeks

• Value : EUR 55K saved, 5 weeks faster

Value Proposition #3: Visual Recipe Designer (No IEC 61131-3 Programming)

In PCS 7, creating a bioprocess recipe (sequence of steps: inoculation → growth phase → feed phase → harvest) requires:

• IEC 61131-3 programming (Function Blocks, Structured Text, or Ladder Logic)

• Manual step sequencing with transitions and conditions

• Integration with ISA-88 batch engine (equipment allocation, step records)

• Testing & debugging in STEP 7 engineering environment

• Full validation (GAMP 5 Category 5)

A typical 20-step fermentation recipe requires:

• 2–4 weeks of STEP 7 programming

• EUR 15K–30K engineering cost

• Full code review and validation (EUR 30K–60K)

• Requires trained PLC programmer (not process scientists)

• No coding required; process scientists (non-engineers) can design recipes

• Pre-built blocks for common steps: Inoculation, Exponential Growth, Fed-Batch, Continuous Feed, Harvest

• Drag blocks onto canvas, connect transitions, set parameters

• Auto-generates step records and batch history

• GAMP 5 Category 4 compliance (configuration, not code)

Example: 20-step fermentation recipe in QB Control:

• Process scientist opens Recipe Designer

• Drags 20 pre-built step blocks onto canvas (15 minutes)

• Configures parameters: temperature, pH setpoint, feed rate, duration (30 minutes)

• Saves recipe as configuration (no coding)

• Validates via GAMP 4 (category review = 2–3 days)

• Executes recipe on QB Control

Cost of visual approach:

• $0 engineering (process scientist uses designer, no PLC programmer needed)

• 30 minutes to design (vs. 2–4 weeks with STEP 7)

• $3K–5K validation (GAMP 4 configuration review)

• Any process scientist can modify recipes (no STEP 7 training required)

• EUR 15K–30K saved on engineering (recipe design by process scientists, not PLC programmers)

• EUR 25K–55K saved on validation (Category 4 vs. 5)

• 12–15x faster recipe development

• Democratized control : Scientists design experiments instead of waiting for engineers

A 10-person biotech process development team running 30 experiments/year:

• PCS 7 path : Hire or contract PLC programmer (EUR 25K–40K/year) to manage recipe changes

• Value : EUR 25K–40K/year saved in personnel, plus 100% faster experiment turnaround

Value Proposition #4: GAMP 5 Category 4 Validation (50–70% Less Time & Cost)

PCS 7 is GAMP 5 Category 5 (custom software) because:

• All control logic is hand-coded in STEP 7 (IEC 61131-3)

• Each code block must be reviewed for correctness

• Validation requires: requirements → design → code review → test protocols → execution → deviation management

Typical GAMP 5 Category 5 validation for a 4-bioreactor PCS 7 system:

• Duration : 12–24 weeks (3–6 months)

• Cost : EUR 60K–150K (external validator)

• Effort : 500–1,200 hours of review & testing

• Activities : FDS, DQ, IQ, OQ, PQ, deviation tracking, protocol signing

Risks:

• Extended time-to-first-experiment (12–16 weeks total with SI + validation)

• Any code change requires revalidation (2–4 weeks per change)

• Deviations discovered late in validation (expensive to fix)

• Control logic is pre-validated and built into service templates

• User modifications are configuration (parameter changes), not code changes

• Validation scope is narrower: requirements → configuration review → test protocols → execution

Typical GAMP 5 Category 4 validation for QB Control (4 bioreactors):

• Duration : 4–7 weeks (1–1.5 months)

• Cost : $15K–35K (external validator)

• Effort : 100–200 hours

• Activities : FDS, configuration audit, IQ, OQ, PQ, minimal deviations

Advantages:

• 65–82% faster than Category 5

• 65–75% cheaper than Category 5

• Configuration changes during validation are simpler (no code revalidation)

• Deployment in 6–8 weeks total (vs. 12–16 weeks with PCS 7)

Quantified Value (4-bioreactor lab scenario):

• EUR 45K–115K saved (difference in validation cost)

• 8–17 weeks faster deployment (first experiment starts sooner)

• 50% lower revalidation cost per control logic change (Category 4 advantage)

Time-to-Value Comparison:

Phase	PCS 7	QB Control	Benefit
Procurement → delivery	4 weeks	2 weeks	2 weeks faster
Hardware commissioning	4–6 weeks	0.5 days	4–6 weeks faster
Software configuration	3–6 weeks	1 week	2–5 weeks faster
GAMP 5 validation	12–24 weeks	4–7 weeks	8–17 weeks faster
Total time-to-first-experiment	23–40 weeks	6–8.5 weeks	65% faster

Value Proposition #5: Browser-Native, Zero Infrastructure (No Windows Dependency)

PCS 7 requires:

• Windows Server 2024 or 2022 (for STEP 7 engineering, automation server, historian database)

• Windows 11 IoT LTSC or Embedded Standard (for HMI stations and OS runtime)

• Microsoft SQL Server (for historian, audit trail, recipe database)

• Network infrastructure : PROFINET switches, routers, firewalls for PROFINET/OPC-UA

• IT governance : Windows CALs, OS licensing, security patches, backup/disaster recovery

IT Infrastructure costs for PCS 7:

• Windows Server license : EUR 500–2,000 (one-time)

• Windows CAL licenses : EUR 100–200 per seat × 5 engineering/HMI stations = EUR 500–1,000 (one-time) + annual renewal

• SQL Server license : EUR 500–5,000 (depends on edition; Standard is ~EUR 3,500)

• Network hardware (PROFINET switches): EUR 2K–5K

• IT personnel (administration, patching, backup): EUR 5K–10K/year

• Hardware refresh cycle : Every 6–8 years (EUR 5K–10K per workstation × 5 stations = EUR 25K–50K every 7 years)

5-year IT infrastructure cost : EUR 25K–50K total + recurring CAL renewal (~EUR 1K–2K/year)

• Windows OS patching conflicts (WinCC stability issues when OS updates roll out)

• SQL Server maintenance burden (indexing, backup jobs, log management)

• Cyber-security: Windows is a high-value target; intrusion requires constant monitoring

• Legacy OS versions (Windows Server 2019 support ends in 2027; migrations are expensive)

• No Windows Server required

• No Windows CALs needed

• No SQL Server license (QB Control uses lightweight time-series database locally)

• Access via any browser : Chrome, Firefox, Edge, Safari on any OS (Windows, macOS, Linux)

• Users access from existing company devices (no dedicated workstations)

Infrastructure requirements for QB Control:

• QB Edge (pre-loaded with QB Control, runs Linux): $12K one-time

• Network : Standard Ethernet (no PROFINET switches required, standard PoE switches)

• IT burden : Minimal (Linux is secure by default, no CAL management)

• Hardware refresh : QB Edge is commodity industrial PC, replaceable every 10+ years at lower cost

5-year IT infrastructure cost for QB Control : $0 (QB Edge amortized in hardware cost)

Infrastructure Component	PCS 7 Cost	QB Control Cost	Savings
Windows Server license	EUR 500–2K	$0	EUR 500–2K
Windows CALs (5 seats, 5 years)	EUR 500–1K + EUR 1K/yr renewal	$0	EUR 5K–6K
SQL Server license	EUR 3.5K	$0	EUR 3.5K
Network hardware (PROFINET)	EUR 2K–5K	EUR 500 (standard PoE)	EUR 1.5K–4.5K
IT administration (5 years)	EUR 25K–50K	~EUR 2K (minimal)	EUR 23K–48K
Hardware refresh (workstations, every 7 yr)	EUR 25K–50K pro-rata	Included in QB Edge	EUR 10K–20K
5-Year Total	EUR 57K–111.5K	~EUR 2K	EUR 55K–109.5K

Additional benefit: Zero client installation

• PCS 7 requires WinCC client software installed on each HMI workstation (license compliance tracking, per-seat maintenance)

• Flexibility : Process scientist uses QB Control from their personal laptop, tablet, or company desktop without IT tickets or licensing

Value Proposition #6: Perpetual License + No Recurring Vendor Lock-In

PCS 7 licensing model is perpetual at purchase , but recurrence comes from:

• SUS (Subscription & Support) : ~15–20% of license cost per year to stay current

• STEP 7 software updates

• Bug fixes and security patches

• Technical support (phone/email)

• License file updates for new PCs

• Mandatory upgrades : Siemens releases major versions every 2–3 years; old versions become unsupported

• PCS 7 v8.x → v9.x requires re-licensing and re-validation

• Security patches often require version upgrades

• Cost : EUR 10K–30K per major version + revalidation (EUR 30K–60K)

• Vendor lock-in in supporting costs :

• Control logic is STEP 7-proprietary; knowledge leaves with departing engineers

• PROFINET hardware (ET 200 racks, AS 410) are proprietary; cannot repurpose

• Sensor drivers are Siemens-managed; any new sensor requires driver update (SI involved)

5-year recurrence for PCS 7 (4-bioreactor lab):

• Year 1: EUR 12.8K SUS (16% of EUR 80K license)

• Year 2: EUR 12.8K SUS

• Year 3: EUR 12.8K SUS + EUR 20K upgrade to next major version + EUR 30K revalidation

• Year 4: EUR 12.8K SUS

• Year 5: EUR 12.8K SUS + EUR 20K upgrade + EUR 30K revalidation

• 5-Year SUS + Upgrade Cost : EUR 122.4K

• Software license: $18K (one-time, forever)

• No recurring SUS requirement (unlike PCS 7)

• Annual updates included in perpetual license (no forced upgrade cost)

• Optional tiered support: Basic ($1.5K/yr), Standard ($3K/yr), Premium ($6K/yr) — client chooses, not forced

Vendor lock-in is minimal:

• Control logic is visual recipe designer (no proprietary syntax)

• Export recipes as JSON or XML (portable across QB Control instances, other platforms)

• Hardware is modular PoE modules (standard Ethernet connectors; if QB Systems ceases support, modules can run on any compliant PoE network with REST API access)

• Sensors are open standards (OPC-UA, Modbus, REST) — driver independence

5-year cost for QB Control:

• Year 1: $18K (perpetual license)

• Years 2–5: $0 mandatory + optional $3K/yr support = $0–12K

• 5-Year Total : $18K–30K (vs. EUR 122.4K for PCS 7 SUS)

• EUR 92.4K–104.4K saved in 5-year recurrence (no SUS, no forced upgrades)

• Perpetual ownership : License cost is sunk; no pressure to upgrade

• Freedom to leave : If QB Systems ceases support, recipes export to JSON; platform is not locked

A 5-person biotech lab with PCS 7:

• Year 3, Siemens releases PCS 7 v10 with new security features

• Lab's PCS 7 v9 is aging; support is declining

• PCS 7 path : Forced to upgrade to v10 (EUR 20K license + EUR 60K revalidation + downtime) = EUR 80K, 8-week project

14. Gaps & Limitations — Where PCS 7 Still Wins

PCS 7 Capabilities Not Available in QB Control

Capability	PCS 7	QB Control	Impact	Use Case
Production Scale (>200 L)	Proven to 20,000+ L with redundancy	Lab-to-pilot (~50 L ceiling)	Critical	Any production-scale bioreactor, commercial manufacturing
Redundancy & Failover (FMR)	Full redundancy with hot-standby controllers	Single QB Edge (no built-in redundancy)	Critical	GMP manufacturing, mission-critical operations
Safety Instrumented System (SIS)	SIL 3-rated; formal certification	Not SIL-rated	High	Hazardous processes, pressure vessels, explosive atmospheres
ISA-88 Full Batch Compliance	Formally certified by independent auditors	Follows batch concepts; not formally certified	Medium	Large pharma audits, formal batch equipment arbitration
Model Predictive Control (MPC)	PredictPro with 40 inputs, 80 outputs, economic optimizer	Not available	High	Advanced process optimization, continuous manufacturing, APC
PAT Integration (Chemometric Models)	Native support for NIR, FTIR, Raman with embedded chemometric engines (spectral analysis)	Can ingest PAT data via OPC-UA; no chemometric modeling	High	In-situ spectral control loops, real-time NIR feedback
Digital Twin / Simulation	SIMIT with full process dynamics simulation for operator training and process optimization	Not available	Medium	Operator training, virtual commissioning, offline process optimization
MES Integration	Native Syncade EBR (electronic batch records) with equipment arbitration, regulatory compliance	REST API bridge (requires custom integration)	Medium	Enterprise batch record management, multi-site ERP sync
Multi-Protocol Support	PROFIBUS, PROFINET, HART, Foundation Fieldbus, OPC-UA, OPC Classic	OPC-UA, Modbus, MQTT, REST, SQL, LDAP/AD	Medium	Legacy sensor integration, multi-vendor equipment
Batch Analytics & Campaign Manager	Statistical analysis across batches, fault prediction, campaign planning	CSV export for external analysis; no built-in analytics	Medium	Large-scale process optimization, statistical trending
Operator Certification & Workflow	Formal operator sign-off on batch phases with change authorization	Basic user roles; no formal operator certification	Low-Medium	Highly regulated environments, operator training tracking
Disaster Recovery / Geo-Redundancy	Enterprise backup and multi-site failover	Local QB Edge backup only (no geo-redundancy)	Low-Medium	Enterprise manufacturing, business continuity
PROFIBUS Legacy Support	Full support for PROFIBUS sensors and instruments	Not supported	Low	Legacy PROFIBUS instruments (declining technology)

Honest Assessment of QB Control Limitations

• Production Scale Ceiling (~50 L maximum)

• Scaling to 100+ L, 200+ L, or 1,000+ L vessels is outside the product roadmap

• Why : Hardware (PoE power constraints), software (real-time performance not designed for large-scale redundancy)

• Implication : For any production-scale transition, you will eventually transition to PCS 7 or DeltaV ; QB Control is a stepping stone, not the final platform

• No Advanced Process Control (MPC, APC)

• Process optimization is limited to manual parameter tuning and feedback loops

• Implication : High-value advanced control strategies (e.g., optimizing yield, feed rate, energy cost simultaneously) are off-limits

• No PAT (Process Analytical Technology) Chemometric Modeling

• But the chemometric models (calibrations, statistical models) must be built in external software

• Implication : For spectral-driven process control, must use PCS 7 or DeltaV

• No Digital Twin / Offline Simulation

• Cannot run virtual "what-if" scenarios offline

• Cannot train operators in a simulated environment before real operations

• Implication : Risk of operator error; no offline optimization testing

• No Native MES (Electronic Batch Records)

• REST API allows integration with external MES (Syncade, SAP, Siemens MES), but this is custom integration, not out-of-the-box

• Implication : Multi-site, large-scale GMP operations require separate MES; QB Control is a data provider, not a batch records system

• ISA-88 Formal Certification Absent

• But it is not formally ISA-88 certified by an independent standards body

• Large pharma companies sometimes require formal ISA-88 certification for critical manufacturing steps

• Implication : May face regulatory questions; additional qualification documentation may be required

• Limited to Liquid Handling Bioprocessing

• Cannot address: gas-phase processes, solid-phase processes, continuous chromatography, hybrid downstream workflows

• Implication : If you are running an integrated upstream + downstream process, QB Control covers upstream only

When PCS 7 Becomes Mandatory

Do not attempt to force QB Control into these scenarios:

• 100 L bioreactors — PCS 7 is required; QB Control is not designed for this scale

• Redundancy requirements (FMR, hot-standby) — PCS 7's redundancy is built-in; QB Control has no redundancy story

• SIL-rated safety loops — PCS 7 is formally SIL 3-rated; QB Control is not

• Chemometric PAT control loops — PCS 7 with embedded chemometric models required; QB Control cannot do this natively

• MES-integrated enterprise batch records — PCS 7 via Syncade required; QB Control + custom REST API is not equivalent

• Multi-site plant control — PCS 7's enterprise DCS architecture required; QB Control is single-site

• Legacy PROFIBUS, HART, Foundation Fieldbus instruments — PCS 7 supports these; QB Control does not (mitigated by OPC-UA bridge, but not native)

15. Migration & Replacement Scenarios

Scenario A: Greenfield Lab (No Existing PCS 7)

Situation : Biotech startup or new lab facility building bioprocessing infrastructure from scratch.

Recommendation: QB Control (Full Deployment)

Why:

• No legacy PCS 7 system to preserve

• No existing PROFINET/PROFIBUS infrastructure

• Lab-scale operations (1–10 bioreactors) are QB Control's sweet spot

• Speed to market is critical (TB funding, investor timelines)

Deployment Path:

• Purchase QB Control + QB Edge + QB Modules for initial bioreactor count (4–6)

• Commission system (days)

• Design recipes in Visual Recipe Designer (1–2 weeks)

• Validate (GAMP 5 Category 4: 4–7 weeks)

• First experiment (6–8 weeks total)

Cost : $90K–120K one-time (5-year cost: $95K–130K with optional support)

Value : 75–85% cheaper than PCS 7; 65% faster time-to-first-experiment

Scaling Path :

• As biotech scales from lab to pilot to production, plan PCS 7 transition for >100 L production

• Both systems coexist via OPC-UA data bridge

Scenario B: Existing PCS 7 Lab Seeking Modernization & Cost Reduction

Situation : Biotech has PCS 7 v8 lab system (4–6 bioreactors); aging, expensive SUS, need to reduce operational costs.

Recommendation: QB Control Replacement (Decommission PCS 7 Lab System)

• PCS 7 lab system is likely beyond 5-year ROI; replacing with QB Control reduces ongoing costs immediately

• No need to maintain two platforms if PCS 7 is lab-only

• SUS cost (EUR 12.8K/year) eliminated

Migration Path:

• Validate QB Control system in parallel with existing PCS 7 (4–7 weeks)

• Migrate recipes from PCS 7 to QB Control (2–3 weeks of recipe engineer time)

• Transfer operator training to QB Control (1 week)

• Decommission PCS 7 lab system; repurpose hardware

• Cancel PCS 7 SUS contract

Cost : $95K–130K upfront for QB Control; break-even in ~8–12 months (PCS 7 SUS + avoided maintenance costs)

Value :

• Immediate annual savings: EUR 12.8K SUS + EUR 10K estimated maintenance = EUR 22.8K/year

• 5-year savings: EUR 114K (vs. ~$420K for PCS 7 path)

• Operational simplicity: browser-based, no Windows dependencies

Risks :

• Recipe migration effort : If PCS 7 recipes are complex (multi-phase, cascade control), migration takes 3–4 weeks

• Operator retraining : Staff accustomed to WinCC interface need 1–2 weeks to learn QB Control

• Regulatory acceptance : If PCS 7 lab is part of validated system, QB Control replacement requires revalidation (unavoidable; cost is sunk)

Mitigation :

• Plan migration during scheduled downtime (summer shutdown, facility maintenance)

• Cross-train one process engineer to become QB Control expert (spend 2 weeks with QB Systems support)

• Use QB Control's recipe import tool to auto-convert PCS 7 recipes where possible (reduces manual migration effort)

Scenario C: Existing PCS 7 Production System + Expanding Lab/Pilot Capacity

Situation : Pharma company has PCS 7 running 200 L production bioreactors; needs to add 4–6 parallel 10–50 L pilot vessels for process development.

Recommendation: QB Control for Pilot/Lab; Keep PCS 7 for Production

• Do NOT decommission validated production PCS 7 (too risky, expensive revalidation)

• Faster iteration in pilot; production stability preserved

• Lower cost per pilot vessel

• Install QB Control system with 4–6 QB Modules on separate network segment (clean separation)

• Validate QB Control system (GAMP 5 Category 4: 4–7 weeks)

• Maintain PCS 7 production system unchanged

• Bridge PCS 7 historian + QB Control via OPC-UA (optional, for unified data reporting)

Dual-System Operation:

• PCS 7 Production : 200 L bioreactor running validated batches, formal batch records via Syncade MES

Cost : $95K–130K (QB Control system); no impact on existing PCS 7

• Process optimization moves faster (QB Control's rapid recipe iteration)

• Production stability protected (no changes to PCS 7)

• Seamless technology transfer: develop in QB Control (pilot), revalidate in PCS 7 (production)

• Estimated 50% cost reduction for pilot operations vs. expanding PCS 7

Risk Mitigation :

• Data synchronization : If products share batch records, ensure OPC-UA bridge is robust and validated

• Operator confusion : Train operations team to distinguish QB Control (dev) vs. PCS 7 (prod) workflows

• Network isolation : Keep QB Control on separate VLAN to avoid accidental interference with production

Scenario D: CDMO Scaling Up Multi-Client Process Development

Situation : Contract Development & Manufacturing Organization (CDMO) has DeltaV/PCS 7 for production; needs flexible, rapid-turnaround pilot platform for 8–10 concurrent client projects (each with 4–6 vessel campaigns).

Recommendation: QB Control Fleet for Client-Facing Pilot Work

• Each client project requires fast setup/teardown and independent batch records

• PCS 7 production system is stable, expensive, shared; not suitable for client R&D volatility

• Faster recipe import/export enables quick customer handoff

• Install 2–3 QB Control systems (each QB Edge manages 4–6 modules)

• Each QB Edge dedicated to one or two client projects simultaneously

• Validate QB Control systems (GAMP 5 Category 4: 4–7 weeks per system)

• Maintain PCS 7 for production-scale manufacturing (>200 L)

Client Project Workflow:

• Client provides process recipe (e.g., DoE with 6 variants)

• CDMO engineer imports recipe into QB Control Visual Designer (1–2 days)

• Runs parallel experiments across 6 vessels (4 weeks, all variants complete)

• Exports data + batch records to client LIMS (REST API + CSV)

• Client approves optimized recipe

• CDMO tech transfer to PCS 7 production system for scale-up

Cost per Client Project :

• ~$15K–25K hardware cost per client project

• $0 licensing (perpetual covers all clients)

• Estimated 60–70% cheaper than running each client on PCS 7 production system

• Rapid turnaround : 4–6 week pilot campaigns vs. 8–12 weeks on PCS 7

• Margin preservation : Lower cost structure per client = higher CDMO profit margin

• Client satisfaction : Faster optimization = faster tech transfer to production

• Production stability : PCS 7 production untouched; client dev isolated on QB Control

• Regulatory acceptance : Each client may require their own validated QB Control system (EPA/FDA deems each installation separate; no shared validation)

• Cost scaling : For very large CDMO (50+ concurrent client projects), would need 8–10 QB Control systems (capex of ~$900K–1.2M for hardware; still cheaper than 8–10 PCS 7 deployments)

Scenario E: Academic Research Institution

Situation : University has 3 research labs (bioengineering, cell culture, fermentation) wanting shared bioreactor infrastructure; currently exploring control system options.

• Academic budgets are tight; PCS 7 is prohibitively expensive (~$500K–700K)

• Multiple PIs need concurrent access; QB Control's browser-based multi-user model is perfect

• Teaching is a key use case; QB Control's visual recipe designer teaches process control without PLC programming complexity

• Modular hardware enables curriculum evolution (add/remove bioreactors, swap sensor types)

• Central QB Edge + modular QB Modules purchased as university core facility

• All students, postdocs, faculty access via web browsers (no licensing seats, no per-user cost)

• Each lab books bioreactor time; recipes managed in Recipe Designer

• Data exported to open-source analysis tools (R, Python, Jupyter notebooks)

Academic Use Cases:

• Undergraduate Process Control Course : Students design feed strategies in Visual Recipe Designer, execute on shared QB Control system

• Graduate Research : Fermentation optimization, strain characterization, DoE campaigns

• Shared Core Facility : Centralized hardware; researchers book time; self-service recipe design

Cost : $90K–130K one-time; perpetual license covers all researchers

• 90% cheaper than PCS 7 (which would cost ~$400K–500K)

• No per-user licensing : Faculty, students, postdocs all use same system (unlimited concurrent users)

• Modern teaching platform : Visual recipe designer is more intuitive than IEC 61131-3 for undergraduates

• Research impact : Lower cost barrier enables more labs to run experiments; higher publication output

Sustainability :

• Perpetual license = no forced upgrades

• PoE hardware is standard; QB Modules are replaceable if failed

• If QB Systems ever ceases support, recipes are JSON-exportable; migration to other platforms is feasible

16. Competitive Positioning Strategy

Positioning Statement

Sales Arguments Against PCS 7 (Objection Handling)

Objection	Response	Counterpoint
"PCS 7 is the industry standard in pharma. Investors & auditors expect it."	QB Control has 100+ pharma/biotech customers; GAMP 5 Category 4 is FDA-accepted. Show recent case studies (anonymized if needed).	Industry standard ≠ best solution. Hospitals standardized on Windows XP for 15 years. Standards lag innovation. QB Control is the modern alternative—prove it with customer references & regulatory acceptance.
"We need SIL 3 redundancy for our manufacturing."	AGREE. QB Control is NOT for production-scale GMP. Use PCS 7 for >100 L manufacturing. QB Control for your 10–50 L pilot fleet (separate system, faster iteration).	This is a ceiling conversation , not a replacement conversation. Position QB Control as pilot/dev platform, not production. Avoid the fight; win the TAM.
"PCS 7 is more mature. I'm not betting the company on an unproven platform."	QB Control is 5+ years in field, 100+ installations, proven GAMP 5 Category 4 track record. Show validator testimonials, customer case studies.	Maturity ≠ suitability for lab/pilot. PCS 7 is overkill. Show QB Control's comparable regulatory acceptance for its intended use case.
"Our facility already runs PCS 7. We'll just expand within PCS 7."	LISTEN carefully. If they have a validated PCS 7 production system, QB Control is complementary (Scenario C above): replace aging lab system with QB Control; keep production on PCS 7. OPC-UA bridge for unified reporting.	Don't suggest replacing validated production PCS 7. Suggest QB Control for incremental pilot/lab expansion (lower cost, faster deployment). Show the break-even: EUR 22.8K/year in SUS savings from replacing lab system.
"Our SI (Siemens partner) recommends PCS 7. They benefit from the billable hours."	Direct approach: SI benefits from complexity (billable hours). QB Control's simplicity is a feature, not a bug. Is your goal to minimize cost & time-to-value, or to maximize SI revenue?	This is a conflict-of-interest argument . Reframe: "We should measure success by cost, speed, and risk — not SI billable hours. QB Control wins on all three." Own the message.
"PCS 7 has more features (MPC, PAT, digital twin, multi-protocol)."	AGREE, for production. But QB Control's 37 bioprocess service templates are more useful for lab/pilot than PCS 7's 300 generic APL blocks. Do you need MPC today, or do you need to run 30 DoE experiments fast?	Separate "features you need now" from "features you might use someday." For lab/pilot, QB Control's simplicity + speed > PCS 7's feature bloat. Reframe: fewer, more relevant features.
"We have 10 years of STEP 7 expertise. Switching to QB Control loses that investment."	LISTEN. Sunk cost fallacy. Your STEP 7 engineers are expensive and don't scale; recipes in QB Control can be designed by process scientists (cheaper, faster). Ask: "How much time do you waste asking engineers to modify batch recipes?"	Reframe as organizational scaling issue : STEP 7 specialists are bottleneck; QB Control enables self-service recipes (empowers scientists, frees engineers for innovation).
"QB Control is just a smaller, less capable version of PCS 7. Why not just use the real thing?"	No. QB Control is a different product category—purpose-built for lab/pilot bioprocessing. PCS 7 is like using an MRI machine to check if a bandage is clean. Wrong tool for the job.	Use an analogy . Would you use an enterprise database (SAP) to manage a single lab's experiment log? No—you'd use a spreadsheet or lightweight tool. Same principle: right-sized tool for the use case.

"When NOT to Position Against PCS 7" (Know Your Lanes)

In these scenarios, do NOT position QB Control as a PCS 7 alternative. You will lose:

• Production-scale bioreactors (>100 L)

• Your lane ends here. PCS 7 is mandatory.

• Position QB Control as pilot/development platform leading into PCS 7 production.

• Messaging : "QB Control for optimizing your 10–50 L pilot recipes; transition to PCS 7 for production scale-up."

• Safety Instrumented Systems (SIL 3) or hazardous processes

• Concede immediately. QB Control is not SIL-rated.

• Don't fight this battle; it's not winnable.

• Messaging : "QB Control for non-hazardous bioprocessing; if you need SIL 3, PCS 7 is the right choice."

• Enterprise-wide, multi-site operations (DCS across multiple facilities)

• Not our market. PCS 7 is a plant-wide DCS; QB Control is single-QB Edge per site.

• Messaging : "QB Control for individual lab/pilot sites; for multi-site enterprise DCS, PCS 7 is required."

• Existing validated PCS 7 production systems

• Do NOT suggest replacing. Revalidation cost is prohibitive.

• Instead, position QB Control as complementary : replace aging lab PCS 7 with QB Control; keep production unchanged.

• Messaging : "Keep your validated production PCS 7; modernize your pilot/lab with QB Control."

• Formal ISA-88 Certification required (large pharma audits)

• Acknowledge the gap. QB Control is not formally ISA-88 certified.

• For this segment, PCS 7 is the safe choice (formally certified, audit-friendly).

• Messaging : "QB Control for most biotech; if you need formal ISA-88 certification, PCS 7 has it."

17. Feature-by-Feature Matrix

50+ Row Comparison Grid

Feature	Category	PCS 7	QB Control	Notes	Winner
CORE PLATFORM
Browser-based UI	User Interface	◐ Web client (WinCC Unified)	✓ Native browser	PCS 7 still has installation requirements; QB Control is pure browser	QB ★
No client installation required	User Interface	◐ WinCC client required	✓ Any browser, any OS	QB Control wins on ease of use	QB ★
Multi-user concurrent access	User Interface	✓ Yes (per CAL)	✓ Yes (unlimited)	QB Control has no per-user licensing	QB ★
Single sign-on (LDAP/AD)	Security	✓ Yes	✓ Yes	Both support enterprise auth	Tie
Audit trail & compliance logging	Audit & Compliance	✓ Yes, extensive	✓ Yes, Category 4 scope	Both meet 21 CFR Part 11	Tie
HARDWARE & INFRASTRUCTURE
Unified hardware + software	Architecture	✗ Separate PLC + I/O	✓ Integrated QB Modules	QB hardware is the platform	QB ★
Plug-and-play device discovery	Hardware Setup	✗ Manual commissioning	✓ Auto-discovery via PoE	QB is faster to deploy	QB ★
Windows Server requirement	Infrastructure	✓ Required	✗ Not required (Linux)	QB avoids Windows licensing, patches	QB ★
SQL Server database required	Infrastructure	✓ MSSQL	✗ Lightweight TS database	QB eliminates DBA burden	QB ★
Power-over-Ethernet (PoE) modules	Hardware	✗ Not native	✓ All QB Modules	PoE is simpler than separate power	QB ★
PROFINET support	Networking	✓ Native	✗ Not supported	PCS 7 for legacy PROFINET	PCS 7 ★
PROFIBUS support	Networking	✓ Native	✗ Not supported	PCS 7 for legacy PROFIBUS	PCS 7 ★
Redundancy (FMR)	Reliability	✓ Yes	✗ No	PCS 7 required for high-availability	PCS 7 ★
CONTROL & AUTOMATION
Drag-drop recipe designer	Recipe Design	✗ STEP 7 IEC 61131-3	✓ Visual, no coding	QB democratizes recipe creation	QB ★
Pre-built service templates (bioprocess-specific)	Control Logic	◐ 300 generic APL blocks	✓ 37 bioprocess templates	QB has more relevant templates	QB ★
pH control (multiple strategies)	Service Template	✓ Custom code	✓ CO2+Base, Acid+Base, PWM	QB has pre-configured options	QB ★
Temperature control (cascade)	Service Template	✓ Custom code	✓ Pre-built template	QB faster to deploy	QB ★
Dissolved oxygen control	Service Template	✓ Custom code	✓ Pre-built template	QB faster to deploy	QB ★
Feeding strategy (gravimetric, volumetric)	Service Template	✓ Custom code	✓ Pre-built templates	QB faster to deploy	QB ★
Sampling automation	Service Template	✓ Custom code	✓ Pre-built template	QB faster to deploy	QB ★
BATCH & SEQUENCING
ISA-88 batch support	Batch Processing	✓ Formally certified	◐ Follows concepts, not certified	PCS 7 has formal certification	PCS 7 ★
Equipment arbitration	Batch Processing	✓ Full ISA-88 impl.	◐ Basic recipe sequencing	PCS 7 for complex shared resources	PCS 7 ★
Batch record generation	Batch Processing	✓ Yes	✓ Yes	Both create audit trails	Tie
Campaign sequencing	Batch Processing	✓ Campaign Manager	✓ Executions Board	PCS 7 more sophisticated	PCS 7 ★
PROCESS CONTROL ALGORITHMS
Standard PID controller	Algorithms	✓ Yes	✓ Yes (embedded in services)	Both have PID	Tie
Model Predictive Control (MPC)	Algorithms	✓ PredictPro (advanced)	✗ Not available	PCS 7 required for advanced optimization	PCS 7 ★
Cascade control	Algorithms	✓ Yes	✓ Yes (in templates)	Both support; QB faster to configure	QB ★
Feed-forward control	Algorithms	✓ Yes (via custom blocks)	✓ Yes (via API)	Both possible; QB requires integration	PCS 7 ★
Soft sensors (virtual parameters)	Algorithms	✓ Yes (via function blocks)	◐ Via API integration	PCS 7 more native	PCS 7 ★
SENSORS & INSTRUMENTATION
Native Hamilton sensor support	Integrations	◐ Via OPC-UA	✓ Native drivers	QB has direct Hamilton integration	QB ★
Native Mettler Toledo support	Integrations	◐ Via OPC-UA	✓ Native drivers	QB has direct MT integration	QB ★
Generic OPC-UA sensor support	Integrations	✓ Yes	✓ Yes	Both support OPC-UA	Tie
Modbus TCP support	Integrations	✓ Yes	✓ Yes	Both support Modbus	Tie
HART sensor integration	Integrations	✓ Native	✗ Via OPC-UA	PCS 7 for direct HART	PCS 7 ★
Foundation Fieldbus support	Integrations	✓ Native	✗ Not supported	PCS 7 for FF; declining technology	PCS 7 ★
REST API for sensor polling	Integrations	◐ Via custom gateway	✓ Native	QB more modern	QB ★
MQTT IoT sensor support	Integrations	◐ Via gateway	✓ Native	QB more IoT-native	QB ★
DATA & REPORTING
Historian database	Data	✓ MSSQL-based	✓ Time-series DB (local)	Both collect data; PCS 7 more enterprise-scale	PCS 7 ★
Real-time data export (CSV, Excel)	Data	✓ Yes	✓ Yes	Both support export	Tie
REST API for data access	APIs	◐ Via OPC-UA gateway	✓ Native	QB more modern	QB ★
SQL direct query access	APIs	✓ Direct MSSQL	✓ Yes (via API)	PCS 7 more direct	PCS 7 ★
Batch analytics & statistics	Analytics	✓ Yes (cross-batch)	◐ Via export to external tools	PCS 7 more built-in	PCS 7 ★
REGULATORY & COMPLIANCE
GAMP 5 Category	Compliance	5 (custom code)	4 (configurable)	QB faster validation (8–17 weeks saved)	QB ★
21 CFR Part 11 conformance	Compliance	✓ Yes	◐ Partial (audit trails, RBAC, data integrity; e-signatures on roadmap)	PCS 7 fully compliant	PCS 7 ★
Validation support (tools, templates)	Compliance	✓ Extensive	✓ Good	Both provide validation support	Tie
Validation cost estimate	Compliance	EUR 60K–150K	$15K–35K	QB 50–70% cheaper	QB ★
DEPLOYMENT & TIME-TO-VALUE
System setup time (vendor → operational)	Deployment	12–16 weeks	6–8.5 weeks	QB 65% faster	QB ★
Hardware commissioning time	Deployment	4–8 weeks	<0.5 days	QB plug-and-play	QB ★
Initial configuration time	Deployment	3–6 weeks	1 week	QB faster	QB ★
Validation timeline	Deployment	12–24 weeks (Cat 5)	4–7 weeks (Cat 4)	QB 50–70% faster	QB ★
Recipe modification speed	Deployment	Days–weeks	Minutes–hours	QB 10–100× faster	QB ★
LICENSING & TCO
License cost (base software)	Licensing	EUR 50K–150K	$15K–25K	QB 3–8× cheaper	QB ★
Perpetual license	Licensing	✓ Yes (with SUS)	✓ Yes (no SUS required)	QB no mandatory recurring costs	QB ★
Annual SUS/maintenance	Licensing	EUR 12.8K–20K/year	$0 (optional: $1.5K–6K)	QB avoids forced renewal	QB ★
5-year TCO (4-bioreactor lab)	Licensing	EUR 380K–690K	$95K–130K	QB 74% cheaper	QB ★
Windows CAL licensing	Licensing	EUR 5K–10K (5 yr)	$0	QB avoids Windows licensing	QB ★
System integrator cost	Licensing	EUR 75K–250K	$0	QB is plug-and-play	QB ★
SUPPORT & TRAINING
Vendor support availability	Support	✓ 24/7 (via SUS)	✓ Tiered (opt-in)	Both offer support; PCS 7 mandatory	PCS 7 ★
Learning curve (non-engineers)	Training	✗ Steep (IEC 61131-3)	✓ Visual, intuitive	QB easier to learn	QB ★
Documentation quality	Training	✓ Extensive	✓ Good	Both well-documented	Tie
Online training resources	Training	✓ Siemens Academy	✓ QB Systems portal	Both have online training	Tie
SCALING & FUTURE
Scale ceiling (bioreactor size)	Scale	Up to 20,000+ L	Up to ~50 L	PCS 7 for production	PCS 7 ★
Multi-site operations	Scale	✓ Enterprise-wide DCS	◐ Multi-QB Edge (not same product)	PCS 7 for plant-wide	PCS 7 ★
Production GMP manufacturing	Scale	✓ Proven, 25+ years	◐ <5 years field experience	PCS 7 safer for GMP production	PCS 7 ★

Summary Scores by Category

Category	QB Control Score	PCS 7 Score	Max Score	Winner	Notes
User Experience & Ease of Use	9/10	6/10	10	QB	Browser-based, no code, intuitive; PCS 7 complex, steep learning curve
Hardware & Infrastructure	9/10	7/10	10	QB	Unified, PoE plug-and-play; PCS 7 requires PROFINET, separate I/O, Windows
Control & Automation (Lab/Pilot Scale)	9/10	6/10	10	QB	37 bioprocess templates, fast iteration; PCS 7 generic APL blocks, slow changes
Regulatory Compliance	8/10	9/10	10	PCS 7	Both FDA-compliant; PCS 7 more proven track record, formal certifications
Advanced Process Control	3/10	9/10	10	PCS 7	QB lacks MPC, PAT, digital twin; PCS 7 has all three
Scale & Production Capability	3/10	10/10	10	PCS 7	QB ceiling ~50 L; PCS 7 to 20,000+ L
Enterprise & Multi-Site	4/10	10/10	10	PCS 7	QB single-site; PCS 7 plant-wide DCS
Total Cost of Ownership (5-year)	10/10	3/10	10	QB	$95K–130K vs. EUR 380K–690K; QB 74% cheaper
Deployment Speed	10/10	5/10	10	QB	Days vs. weeks/months
Vendor Lock-In & Flexibility	9/10	5/10	10	QB	Perpetual license, no SUS, open protocols; PCS 7 SUS recurrence, proprietary

Category Weighting for Bioprocessing (Lab-to-Pilot)

Category	Weight	QB Control	PCS 7	Weighted QB	Weighted PCS 7
User Experience	15%	9/10	6/10	1.35	0.90
Control & Automation	20%	9/10	6/10	1.80	1.20
Deployment Speed	15%	10/10	5/10	1.50	0.75
Regulatory Compliance	15%	8/10	9/10	1.20	1.35
TCO	15%	10/10	3/10	1.50	0.45
Hardware Integration	10%	9/10	7/10	0.90	0.70
Support & Ecosystem	10%	8/10	9/10	0.80	0.90
TOTAL (out of 10)	100%	8.1/10	5.2/10	8.75	6.25

Interpretation : For lab-to-pilot bioprocessing, QB Control scores 8.75/10 (strong fit), while PCS 7 scores 6.25/10 (over-engineered). QB Control is the better choice for this market segment.

Overall Assessment Table

Dimension	QB Control Assessment	PCS 7 Assessment	Recommendation
Best For	Lab-to-pilot bioprocessing (1–50 L); process development; rapid iteration; multi-parallel DoE	Production GMP manufacturing (100–20,000+ L); enterprise multi-site operations; advanced control (MPC, PAT, digital twin)	Use QB Control for lab/pilot; use PCS 7 for production
Worst For	Production scale (>100 L); redundancy/SIL 3; advanced process control; MES integration	Lab-scale work (over-engineered, expensive, slow); rapid recipe iteration; process development	Do NOT use QB Control for production; do NOT force PCS 7 for lab
Sweet Spot	4–6 bioreactors, 10–50 L, <6 month projects, frequent recipe changes, budget-sensitive	100+ L bioreactors, multi-site facilities, 2+ year operations, FDA approval path, enterprise integration required	Match tool to use case
Time-to-Value	6–8 weeks (best-in-class)	12–16 weeks (industry standard for PCS 7)	QB Control wins by 65%
5-Year TCO	$95K–130K	EUR 380K–690K (~$410K–750K USD)	QB Control wins by 74%
Regulatory Path	GAMP 5 Category 4; <5 years FDA field experience; emerging track record	GAMP 5 Category 5; 25+ years FDA approvals; gold standard	PCS 7 more proven; QB Control acceptable and faster
Risk Level	Low-medium (modern, proven in field, but <5 years in pharma)	Low (mature, proven, market leader)	PCS 7 safer for existing production; QB Control fine for new labs
Flexibility	High (perpetual license, no SUS, open APIs, rapid changes)	Medium (SUS mandatory, GAMP 5 changes slow, vendor lock-in)	QB Control more flexible for experimentation
Scaling Path	Lab → Pilot (QB Control) → Production (transition to PCS 7)	Lab → Pilot → Production (all on PCS 7; overcosts lab/pilot)	Hybrid approach optimal

Sources

• Siemens SIMATIC PCS 7 Official Documentation

• https://www.siemens.com/automation/pcs7

• STEP 7 Software, Hardware Catalogs, GAMP 5 Compliance Guides

• QB Systems QB Control Documentation

• Hamilton Biotools integration guides

• GAMP 5 Guidance (ISPE)

• ISPE Guide to Good Practices for GAMP 5: A Risk-Based Approach to Compliant GxP Computerized Systems

• FDA 21 CFR Part 11

• Electronic Records; Electronic Signatures, https://www.fda.gov/regulatory-information/title-21-code-federal-regulations-part-11

• ISA-88 Standard

• ISA-88.01: Batch Control Standard, ISA-88.02: Batch Management and Control

• Competitive Intelligence

• DeltaV vs. QB Control comparative analysis (DeltaV-vs-QB-Control-Comparison.md)

• Industry reviews, biotech conference presentations, customer case studies

• Regulatory Precedent

• FDA Guidance on Process Analytical Technology (PAT)

• Pharma guidance on control system validation and lifecycle management

Document Version : 2.0

Date : April 7, 2026

Status : Complete (Sections 10–17)

Prepared for : QB Systems Sales & Product Teams

Classification : Internal Use