Honeywell CC-PCF901 Modules: 51405047-175 Control Firewall Module - 51405047-175 CC-PCF901

Technical Dossier

Product Details And Specifications

Honeywell CC-PCF901 Series Technical Notes

The Honeywell CC-PCF901 Control Firewall Module is a core network security and isolation component within the Honeywell Experion PKS (Process Knowledge System) distributed control system architecture. Deployed extensively across global heavy industry — including petrochemical refineries, nuclear power facilities, LNG terminals, and continuous-process chemical plants — the CC-PCF901 functions as a hardware-enforced firewall between the Experion control network and external or supervisory networks. Its role is to prevent unauthorized data traversal at the hardware level, independent of software-based security layers, making it a mandatory component in safety-critical and high-availability DCS installations. The Experion PKS platform, of which the CC-PCF901 is a constituent module, holds significant installed base across Fortune 500 energy and chemical operators, with lifecycle commitments extending well beyond 2030 for many sites.

The Evolution of CC-PCF901 Architecture

The CC-PCF901 belongs to Honeywell's C300 Controller-era hardware generation, introduced as part of the Experion PKS R300 platform in the mid-2000s. This generation succeeded the earlier TDC 3000 and PlantScape architectures, which relied on proprietary LCN (Local Control Network) and UCN (Universal Control Network) bus topologies. The C300 generation transitioned to standard Ethernet-based FTE (Fault Tolerant Ethernet) as the primary control network medium, necessitating dedicated hardware firewall modules such as the CC-PCF901 to enforce network segmentation at the physical layer.

Early Experion PKS deployments (R110–R210) used software-configured VLAN segmentation without dedicated hardware firewall modules. The introduction of the CC-PCF901 in the R300 era formalized hardware-level isolation as a standard architecture requirement, particularly for sites subject to NERC CIP, IEC 62443, or equivalent cybersecurity compliance frameworks. Subsequent Experion releases (R400, R410, R430, R500) maintained backward compatibility with CC-PCF901 hardware, though firmware updates were required for each major platform revision. As of Experion PKS R511 and later, Honeywell has introduced virtualized and software-defined security alternatives, but physical CC-PCF901 modules remain the mandated solution for legacy C300 chassis installations and sites without virtualization infrastructure.

CC-PCF901 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified Honeywell Experion PKS C300-series module catalog, encompassing controllers, I/O modules, communication adapters, power supplies, and network components. Each entry reflects a distinct hardware part number with a defined functional role within the Experion PKS architecture.

51405047-175 CC-PCF901: Control Firewall Module; hardware network isolation between Experion FTE and external networks.
51309288-175 CC-PCF901: Alternate assembly revision of CC-PCF901 Control Firewall; functionally equivalent, different BOM revision.
51402573-175 CC-PCNT01: C300 Controller Node; primary process control execution module for Experion PKS C300 chassis.
51402573-275 CC-PCNT01: C300 Controller Node, revision 2; enhanced memory and processing capacity variant.
51304485-100 CC-TAIX01: Analog Input module; 8-channel, 4–20 mA HART-capable, for process variable acquisition.
51304485-150 CC-TAIX11: Analog Input module with extended HART pass-through; 8-channel, intrinsically safe variant.
51304487-100 CC-TAOX01: Analog Output module; 8-channel, 4–20 mA, for final control element command signals.
51304490-100 CC-TDIL01: Digital Input module; 32-channel, 24 VDC, for discrete process status acquisition.
51304491-100 CC-TDOL01: Digital Output module; 32-channel, 24 VDC sourcing, for discrete actuator control.
51304493-100 CC-TDIL11: Digital Input module, isolated; 16-channel, 120 VAC/VDC, for high-voltage discrete inputs.
51304494-100 CC-TDOL11: Digital Output module, isolated; 16-channel, 120 VAC/VDC relay output.
51401469-200 CC-PAIH01: HART Analog Input module; 8-channel with full HART device management integration.
51401469-300 CC-PAIH02: HART Analog Input module, revision 3; extended diagnostics and HART 7 protocol support.
51401474-200 CC-PAOH01: HART Analog Output module; 8-channel, 4–20 mA with HART 5/6/7 command support.
51309276-175 CC-PWRR01: Redundant Power Supply module; 24 VDC input, for C300 chassis power redundancy.
51309277-175 CC-PWRR02: Redundant Power Supply module, high-capacity; supports fully populated C300 chassis.
51402574-175 CC-SCMB02: Series C Mounting Base; chassis backplane for C300 module installation.
51309289-175 CC-FTE001: Fault Tolerant Ethernet switch module; managed FTE network switch for C300 control network.
51309290-175 CC-FTE002: FTE switch module, extended port count; for large-node Experion PKS topologies.

Sourcing Hard-to-Find & Obsolete CC-PCF901 Parts

The CC-PCF901 and associated C300-generation Honeywell Experion modules are classified as mature-lifecycle hardware. Honeywell's official last-time-buy windows for several C300 sub-assemblies have closed, and new production of certain part numbers has ceased. However, the installed base of Experion PKS C300 systems in active production environments — particularly in refineries and chemical complexes with 20–30 year asset lifecycles — creates sustained demand for replacement and spare modules that extends well beyond OEM support timelines.

Quality Control for the CC-PCF901 Range

The CC-PCF901 Control Firewall Module presents specific verification challenges due to its role as a network security enforcement device. Standard power-on self-test (POST) verification is insufficient to confirm correct firewall rule enforcement behavior. DriveKNMS applies a multi-stage test protocol for all CC-PCF901 units: