Control Network Isolation Solution — Honeywell CC-PCF901 | 51405047-175 | Experion PKS Series
In modern process industries, unplanned control network intrusions account for over 60% of unscheduled DCS downtime events. When a historian server, engineering workstation, or third-party SCADA node shares an unsegmented network with safety-critical controllers, a single broadcast storm or unauthorized access attempt can cascade into a full process shutdown — costing refineries and power plants upward of $500,000 per hour in lost production. Regulatory bodies including IEC 62443 and NERC CIP mandate strict zone-and-conduit segmentation precisely because this risk is quantifiable and preventable.
The Honeywell CC-PCF901 (Part No. 51405047-175) Control Firewall Module is the purpose-built hardware boundary between the Experion PKS control network and higher-level enterprise or supervisory networks. Installed directly in the C300 controller chassis, it enforces deterministic packet filtering at the hardware level — without adding software-layer latency or requiring a separate rack-mounted appliance. Engineers specify it because it eliminates the attack surface at the source, maintains sub-millisecond control loop integrity, and satisfies zone-boundary documentation requirements for ISA/IEC 62443 compliance audits.
Where This Product Is Used
Oil & Gas — Upstream & Midstream
- FPSO vessel DCS isolation: separates topside process controllers from satellite uplink and crew IT networks in high-humidity, salt-air environments (ambient 0–55 °C, IECEx Zone 2 boundary)
- Pipeline SCADA segmentation: enforces conduit boundaries between RTU polling networks and Experion PKS supervisory layer per API 1164 pipeline cybersecurity guidelines
- Gas compression station: isolates compressor surge-control loops from historian data collection to prevent polling traffic from affecting 20 ms scan-cycle timing
Refining & Petrochemical
- Crude distillation unit: network boundary between advanced process control (APC) optimizer and base-layer regulatory controllers, preventing APC communication faults from propagating to PID loops
- Ethylene cracker: separates safety instrumented system (SIS) data gateway from DCS control network, supporting IEC 61511 independence requirements
- Tank farm management: isolates level and temperature controller network from inventory management system polling (Modbus TCP / OPC-DA bridging environments)
Power Generation & Utilities
- Combined-cycle power plant: segments turbine control network from plant information system (PI) historian, maintaining NERC CIP-005 Electronic Security Perimeter documentation
- Boiler management system: firewall boundary between burner management controllers and DCS operator stations, supporting NFPA 85 network isolation recommendations
- Substation automation: separates IEC 61850 GOOSE messaging network from corporate WAN access points
Pulp, Paper & Chemicals
- Continuous digester control: isolates kraft process controllers from MES production scheduling system in high-temperature, high-humidity mill environments (up to 95% RH non-condensing)
- Batch reactor sequencing: prevents engineering workstation firmware download traffic from interfering with time-critical batch phase transitions
- Chlor-alkali plant: network segmentation in classified areas where intrinsically safe barriers are required at the field level
Pharmaceutical & Life Sciences
- Bioreactor control: isolates GMP-validated control network from IT patch management traffic, preserving 21 CFR Part 11 audit trail integrity
- Clean-in-place (CIP) systems: network boundary prevents CIP sequence controller from receiving unsolicited packets during validated cleaning cycles
- Environmental monitoring: separates HVAC control network from building management system (BMS) to maintain cleanroom classification
Water & Wastewater Treatment
- Drinking water treatment: SCADA network isolation per AWWA cybersecurity guidance, separating chemical dosing controllers from remote monitoring portals
- Wastewater WWTP: isolates aeration basin dissolved-oxygen control loops from plant-wide historian polling that can introduce jitter into PID execution
- Desalination plant: network boundary between high-pressure pump VFD control network and energy recovery device monitoring system
Technical Specifications
| Part Number | CC-PCF901 / 51405047-175 |
| Series | Honeywell Experion PKS C300 Series |
| Module Type | Control Firewall Module (CFM) |
| Form Factor | Single-slot C300 chassis card — eliminates need for external appliance rack space |
| Network Interfaces | Dual Ethernet (FTE — Fault Tolerant Ethernet) + supervisory network port |
| Filtering Method | Hardware-enforced stateful packet inspection; deterministic, no software OS dependency |
| Latency Impact | <1 ms added latency on control network — critical for 20–100 ms DCS scan cycles |
| Operating Temperature | 0 °C to +60 °C (32 °F to 140 °F) |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5% to 95% non-condensing |
| Power Consumption | Supplied via C300 chassis backplane (no external PSU required) |
| Redundancy Support | Compatible with redundant C300 controller pairs; supports hitless failover |
| Mounting | Direct chassis insertion — hot-swap capable per Experion PKS maintenance procedures |
| Weight | Approx. 300 g |
| Compliance | ISA/IEC 62443-3-3, NERC CIP-005, CE, UL listed |
Why Engineers Specify This Model
- In refinery DCS modernization projects, the CC-PCF901 delivers zone-boundary isolation without chassis replacement because it occupies a standard C300 slot, meeting IEC 62443-3-3 SR 5.1 conduit requirements with zero additional footprint.
- In NERC CIP-compliant power plant control rooms, the CC-PCF901 delivers documented Electronic Security Perimeter (ESP) enforcement because its hardware filtering is auditable at the module level, satisfying CIP-005-6 R1 evidence requirements.
- In pharmaceutical GMP environments, the CC-PCF901 delivers validated network isolation because it operates independently of the host OS patch cycle, preserving 21 CFR Part 11 system validation status between IT maintenance windows.
- In offshore FPSO topside control systems, the CC-PCF901 delivers reliable operation in salt-air, high-vibration environments because it is a sealed, backplane-powered card with no moving parts, meeting IEC 60068-2 environmental test standards.
- In batch chemical reactor sequencing, the CC-PCF901 delivers deterministic scan-cycle protection because hardware-level filtering adds <1 ms latency, preventing engineering workstation traffic from causing phase-transition timing faults.
- In water utility SCADA segmentation, the CC-PCF901 delivers AWWA cybersecurity guideline compliance because it creates a documented, hardware-enforced conduit between the chemical dosing control network and the remote monitoring DMZ.
Complete System Bill of Materials
The CC-PCF901 operates within the Honeywell Experion PKS C300 ecosystem. A complete network-segmented control node typically includes:
- CC-PCF901 (51405047-175) — This module. Provides the hardware firewall boundary between control and supervisory networks.
- CC-PCF901 Redundant Pair — Second CC-PCF901 for redundant controller configurations; enables hitless failover without network boundary interruption.
- C300 Controller (CC-PCF901 host chassis) — e.g., CC-PCF901 mounts in the same chassis as the C300 process controller card.
- C300 Chassis (CC-PCNT01 / CC-PCNT02) — 4-slot or 8-slot chassis providing backplane power and communication bus for the CFM.
- FTE Switch (Honeywell FTEB or equivalent managed switch) — Fault Tolerant Ethernet switch connecting the CFM’s control-side ports to the FTE ring; required for redundant network topology.
- Supervisory Network Switch — Managed Layer 2/3 switch on the historian/SCADA side of the firewall; must support VLAN segmentation to complement the CFM’s zone boundary.
- Experion PKS Server (ESVT / ESVD) — Operator station and historian server residing on the supervisory network side of the CC-PCF901 boundary.
- Fiber Optic Patch Cables (LC-LC, multimode OM3/OM4) — For FTE ring connections in environments requiring electrical isolation or runs >100 m.
- 24 VDC DIN Rail Power Supply — Chassis power feed; redundant PSU recommended for SIL-rated applications.
- Grounding Kit & DIN Rail Hardware — Per Honeywell installation manual PM12-410 for proper EMC bonding in industrial enclosures.
Compliance & Industry Standards
- ISA/IEC 62443-3-3 (ISA Security Compliance Institute) — System security requirements for industrial automation; the CC-PCF901 satisfies SR 5.1 (Network Segmentation) and SR 5.2 (Zone Boundary Protection). Practical meaning: your DCS zone-boundary documentation is supported by a hardware artifact, not just a software policy.
- NERC CIP-005-6 (North American Electric Reliability Corporation) — Electronic Security Perimeter standard for bulk electric systems. The CFM provides the auditable ESP boundary required by R1. Practical meaning: power plant operators can cite the module in CIP evidence packages.
- IEC 61511 (Functional Safety) — The CFM’s network isolation supports independence between SIS data gateways and DCS control networks, a key architectural requirement for SIL 2/3 loops. Practical meaning: reduces the risk of common-cause failure via shared network infrastructure.
- 21 CFR Part 11 (U.S. FDA) — Electronic records and signatures in pharmaceutical manufacturing. Hardware-level isolation preserves validated system boundaries between IT and OT. Practical meaning: IT patch cycles do not invalidate your GMP control system qualification.
- CE Marking (European Commission) — Confirms electromagnetic compatibility (EMC) and low-voltage directive compliance for EU installations.
- UL Listed (Underwriters Laboratories) — North American safety certification for industrial control equipment.
- AWWA Cybersecurity Guidance (American Water Works Association) — Recommended network segmentation practices for water utilities; the CC-PCF901 architecture aligns with the conduit model described in AWWA’s cybersecurity guidance document.
Quality Assurance & Sourcing
Sourcing Channels: Konmask.com sources the CC-PCF901 through authorized industrial surplus channels, OEM-certified distributors, and decommissioned plant asset liquidations. Every unit is physically inspected before listing.
4-Step Inspection Process:
- Visual & Physical Inspection — Connector pins, faceplate labeling, PCB condition, and chassis slot guides checked against Honeywell factory reference images.
- Part Number & Revision Verification — Label cross-referenced against Honeywell part number database (51405047-175 revision matrix) to confirm hardware revision compatibility.
- Functional Bench Test — Module powered via compatible C300 chassis; FTE port link-up and supervisory port activity verified where test infrastructure permits.
- Packaging & ESD Protection — Shipped in anti-static bag with foam-lined carton; humidity indicator card included for international shipments.
Available Documentation: Certificate of conformance (CoC) on request · High-resolution photos of actual unit · Honeywell datasheet (PM12-410 series) · Export compliance documentation (HS code, country of origin)
How to Source This Part
- Confirm Compatibility — Verify your C300 chassis revision and Experion PKS software version against Honeywell’s CFM compatibility matrix (R400 and above recommended). Contact us if you need assistance cross-referencing your system revision.
- Request a Quote — Submit your inquiry via the product page or email support@konmask.com with your required quantity, delivery timeline, and any documentation requirements (CoC, test report). We respond within 24 hours on business days.
- Order & Ship — Orders confirmed before 14:00 CST ship same day where stock permits. We ship globally via DHL Express, FedEx International Priority, and UCP for freight consolidation. Export documentation (commercial invoice, packing list, EX1/EEI filing) provided for all international orders.
Application-Specific FAQ
Q: Can the CC-PCF901 be used to segment a SIS network from the DCS control network in an IEC 61511 SIL 2 application?
A: The CC-PCF901 provides the network-layer isolation required to maintain independence between SIS data gateways and DCS controllers, which is an architectural requirement under IEC 61511 Clause 11.2.6. However, the overall SIL rating of your safety loop depends on the complete SIS architecture — consult your functional safety engineer to confirm the CFM’s role in your specific safety requirements specification (SRS).
Q: In an oil & gas FPSO application with high vibration and salt-air exposure, what is the expected service life of the CC-PCF901?
A: Honeywell designs C300 series modules for a 10–15 year service life in industrial environments meeting IEC 60068-2 vibration and humidity test profiles. The CC-PCF901’s sealed, backplane-powered design with no moving parts makes it well-suited for marine and offshore environments. Konmask recommends maintaining one spare unit per installed pair as part of your critical spare parts strategy.
Q: For a NERC CIP-005 audit, what documentation can Konmask provide to support our Electronic Security Perimeter evidence package?
A: We can provide a certificate of conformance (CoC) confirming part number, serial number (where available), and inspection status; high-resolution photographs of the actual unit shipped; and the Honeywell product datasheet. For CIP evidence packages, your system integrator will typically combine this with your network topology diagram and Experion PKS configuration export to demonstrate the ESP boundary. Contact support@konmask.com to request documentation before or after purchase.
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