Fast Quote
FS-CPB-0001 is the controller backplane installed in Honeywell CPCHAS-0001. It forms the electrical interconnection point for the two Control Processor positions and routes controller-side power, communication and chassis signals.
Honeywell documents the controller chassis for both redundant and non-redundant configurations. Selection and replacement should therefore begin with the installed chassis revision, controller arrangement and the connected I/O architecture.
Verified resources for FS-CPB-0001:
The rear side separates CP1 and CP2 services. Each processor side has an RJ45 Ethernet channel and a 10-pin general-purpose communication channel, while dedicated 24 VDC inputs feed CP1 and CP2 independently.
Additional chassis connections include IN1–IN3 for general-purpose non-safety 24 V signals and the two-pin SD connector for the emergency-shutdown signal.
Four I/O bus pairs are presented as IO bus1.1–1.4 from CP1 and IO bus2.1–2.4 from CP2. These eight flat-cable connectors route controller communication to the connected I/O chassis.
Honeywell assigns TERM-0001 to non-redundant I/O layouts and TERM-0002 to redundant layouts. Match the terminator and cable arrangement to the configured architecture before energizing the chassis.
The backplane receives separate 24 VDC feeds for the CP1 and CP2 sections. It also connects 5V-1 and 5V-2 and combines the two power-supply outputs as 5V-R for non-redundant I/O availability while at least one power supply remains in operation.
Eight WdP connectors carry watchdog and power signals to I/O chassis positions 1 through 8, allowing the controller chassis to distribute the required monitoring and supply signals across the I/O structure.
Before replacement, isolate the controller chassis and record the existing CP1/CP2 module placement, communication connections, 24 VDC feeds, four paired I/O bus cables, WdP outputs, SD input and IN1–IN3 wiring.
Confirm the CPCHAS-0001 revision and redundant or non-redundant design, then verify every cable label and the TERM-0001 or TERM-0002 selection against the Honeywell hardware reference before commissioning.
Honeywell FS-CPB-0001 is the controller backplane fitted inside the CPCHAS-0001 chassis for redundant or non-redundant Safety Manager/FSC control processor configurations. Its front side provides keyed connectors for Control Processor modules, while its rear side provides communication, power, watchdog, general-purpose input and emergency-shutdown connections.
The backplane distributes separate 24 VDC feeds to CP1 and CP2, combines the power-supply 5V-R outputs for non-redundant I/O availability, and provides four pairs of controller I/O buses with positions for TERM-0001 or TERM-0002 terminators.





