Products Description
Foxboro CP100 Field Control Processor Module

Technical Specifications
Model:CP100
Brand:Foxboro
System compatibility:I/A Series DCS distributed control system
Function:Field control processor core unit,executes real‑time PID adjustment,sequence control and safety interlock logic for process loops
Installation:Standard I/A‑Series rack‑mount installation,mated with dedicated node baseplate
Communication interface:Nodebus high‑speed control network interface;FBM fieldbus interface for connecting field I/O subsystems
Processing capability:Real‑time control block execution,process‑data acquisition and calculation,alarm event processing
Memory:On‑board non‑volatile memory,retains control configuration and application parameters
Feature:Support hot‑swap online replacement without system power‑off
Diagnostic:Front‑panel multi‑color LED indicators for module power,Nodebus link,fieldbus link and internal fault alarm
Power supply:Rack backplane powered
Protection:Built‑in transient surge protection for all communication interfaces
Environmental standard:Compliant with ISA‑S71.04 Class G3 industrial atmospheric condition
Housing:Metal shielded rack‑mount housing,anti‑vibration mechanical reinforcement
Protection class:IP20
Horizontal operating temperature:0℃ ~ +60℃
Vertical operating temperature:‑20℃ ~ +55℃
Storage temperature:‑40℃ ~ +85℃
Relative humidity:5%‑95% non‑condensing
Weight:1.18kg
Dimensions:34mm × 250mm × 220mm
Certification:CE,UL
MTBF:>86000 hours

Built‑in function
CP100 field control processor serves as core control node hardware for Foxboro I/A‑Series DCS system. It communicates with operator workstation via Nodebus network and connects field FBM I/O subsystems through fieldbus. It completes real‑time PID regulation,sequence program execution and safety interlock logic processing. Non‑volatile memory keeps configuration parameters stable after power loss. Hot‑swap function supports online module replacement and reduces plant downtime risk. Front‑panel LED feedback facilitates on‑site fault inspection,widely applied for petrochemical,chemical and power‑plant process‑control cabinets.
Product Brief
CP100 belongs to Foxboro I/A Series legacy DCS control‑node spare‑part family,obsolete original rack‑mount processor component. Must be fitted in matching I/A‑Series instrument rack with correct Nodebus and fieldbus wiring. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.