Component Snapshot At-a-Glance

• Model: CC-PCF901, factory P/N 51405047-175
• Alt. P/N: No direct cross-substitute; standard IT switches cannot replace CF9 control firewall functionality
• Product Series: Honeywell Experion PKS Series C FTE Fault Tolerant Ethernet platform, paired with C300 FTE controllers
• Hardware Type: Rack-mount 9-port hardened control firewall/FTE distribution module, hot-swap capable, mounts exclusively to CC-TCF901 CF9 IOTA base
• Key Feature: Hardware-level FTE traffic filtering, 8×10/100Mbps FTE ports + 1×Gig uplink, ISA Secure CSA L2 compliant, broadcast/multicast storm suppression
• Primary Field Use: Centralize cabinet FTE wiring, segment control/supervisory network layers, block unauthorized non-control traffic to protect C300 deterministic scan execution.

Hard-Numbers: Technical Specifications

• Protocol Support: FTE proprietary control protocol, IPv4, TCP/UDP, stateful hardware ACL filtering, SNTP time sync
• Port Count: 8 x 10/100Mbps FTE RJ45 ports; 1 x 10/100/1000Mbps uplink RJ45; gold finger mating connector for CF9 IOTA
• Baud/Data Rate: Ports auto-negotiate 10/100Mbps full/half duplex; gig uplink for plant LAN uplink
• Operating Temperature: 0°C to +60°C cabinet operational; -40°C to +85°C storage
• Isolation Rating: 1500Vrms port-to-backplane galvanic isolation per RJ45 channel
• Power Draw: 24VDC ±10% rack supply, 0.112A nominal, total module power draw ~2.7W
• Filtering Mechanism: Wire-speed hardware packet inspection, zero latency impact on CEE control scan cycles
• Topology Support: FTE ring, star, daisy-chain cabinet network layouts
• Security Compliance: ISA Secure CSA L2, IEC 62443 zone segmentation capable
• Diagnostics: Per-port link activity LED, broadcast flood alarm, port fault, module power loss
• Redundancy Support: Dual CC- deployable for redundant C300 controller pairs
• Physical Weight: 0.3kg single module assembly

The Real-World Problem It Solves

Unmanaged commercial IT switches lack industrial hardening and control traffic filtering; broadcast storms from office HMI/historian traffic flood the FTE control network, causing C300 scan jitter and uncommanded process trips.Separate external firewalls add extra rack space and intermediate cable splices, introducing vibration-induced intermittent FTE packet loss that disrupts redundant controller switchover. Without hardware-level traffic policing, non-control Modbus TCP/OPC traffic competes for bandwidth with critical PID and interlock logic commands.Standard FTE daisy-chain wiring creates messy, unmanageable cable runs inside dense control cabinets; troubleshooting broken FTE links takes hours without centralized port termination.Where you’ll typically find it:

• Refinery FTE critical control racks housing redundant ESD and distillation column controllers
• Fossil power plant boiler/turbine FTE cabinetry separating control I/O network from plant enterprise LAN
• Offshore FPSO Experion PKS control cabinets requiring zone segmentation for cyber security complianceThis cabinet-native CF9 firewall consolidates FTE distribution and industrial network security into one hot-swap module, eliminates external IT switch/firewall hardware, and guarantees deterministic control scan timing even under heavy plant LAN traffic loads.

Hardware Architecture & Under-the-Hood Logic

This module integrates a hardened FTE switch ASIC paired with dedicated hardware firewall filtering logic; all packet inspection runs at wire speed with no CPU processing lag that impacts controller scan timing.

1. 24VDC rack power from CC-TCF901 IOTA feeds isolated internal power rails for the FTE switch ASIC and all RJ45 port transceivers.
2. Eight dedicated FTE 10/100Mbps ports provide local cabinet termination for controllers, FTE I/O racks, and local field interface modules.
3. Single gigabit uplink port segregates cabinet control traffic from external plant supervisory LAN, hardware ACLs block all non-authorized Experion control packets.
4. Dedicated broadcast suppression logic throttles flood traffic before it reaches controllers, preventing scan cycle jitter and PV value lag on HMI displays.
5. Per-port galvanic isolation blocks ground loop noise from long cabinet-to-cabinet FTE cable runs routed alongside VFD power wiring.
6. Front panel individual port link/activity LED bank lets technicians trace broken FTE cable runs without pulling workstation diagnostic reports.

Field Service Pitfalls: What Rookies Get Wrong

Substituting Standard Office Managed Switches In Place Of CC- CF9 Firewall

New techs deploy commercial IT switches to cut spare hardware cost. No hardware FTE filtering or broadcast suppression; periodic network storms flood the control network, triggering mass point invalidation and nuisance safety interlock trips.Field Rule: Only CC- CF9 modules are approved for FTE cabinet distribution; IT switches are prohibited on control layer FTE networks per Honeywell ISA security standards.

Overloading Single CC- Port Bank With Multiple Daisy-Chained FTE I/O Racks

Apprentices daisy-chain 4+ FTE I/O HIVE racks off one CF9 port. Excessive cable hops increase FTE packet latency, breaking redundant controller bumpless switchover during primary CPU fault events.Quick Fix: Limit maximum 2 FTE I/O racks per individual CC- port; use additional CF9 ports for dense I/O cabinet layouts to reduce hop count.

Disabling Default Broadcast Storm Suppression Rules For HMI Data Transfer

Crews turn off flood filtering to speed historian data collection. Unrestricted multicast traffic saturates FTE bandwidth, control scan cycles stretch past configured 50ms intervals, destabilizing tight temperature/flow regulatory loops.Field Rule: Leave factory broadcast/multicast suppression rules enabled; offload large historian trend data to the gigabit uplink port only, never local FTE device ports.

Commercial Availability & Pricing Note

Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.