ABB CP800 (Symphony Plus HPC800) Main Control Processor Module
CP800 is the core control CPU of ABB Symphony Plus (S+) DCS, paired with HPC800 rack, responsible for logical operations, circuit regulation, system scheduling, and PN800 network management. It is the computing brain of the entire DCS system.

1、 Model and System Ownership
Standard model: CP800K01 (derived from CP822)
System: ABB Symphony Plus (formerly INFI 90), HPC800 high-performance controller rack
Architecture: Dual redundant main control, 1:1 hot standby undisturbed switching, SIL compliant process control
2、 Core hardware parameters
1. Computing power and storage
Processor: Dual 32-bit ColdFire 256MHz
RAM：64MB； Flash：4MB
Control cycle: millisecond level, closed-loop PID high-speed operation
2. Communication interface
Backboard: HPC800 rack high-speed internal bus
Factory network: PN800 Ethernet (10/100M), connected to PNI800 upper computer
Remote IO: Docking with RFO810 fiber FOXMAN-R network
Universal protocols: Modbus TCP, OPC UA, Profinet
3. Electrical and Environmental
Power supply: 24VDC (rack backplane power supply)
Power consumption: Typical ≈ 10W
Working temperature: 0-70 ℃
Size: 170 × 104 × 74mm, weight ≈ 0.99kg
Installation: Rack slot, hot swappable
3、 Core functions
Whole process logic control
PID regulation, sequential interlocking, batch control, alarm management, event sequence SOE recording
Dual redundancy high reliability
Real time synchronization between primary and backup CPUs, millisecond level switching in case of failure, no control interrupts
Network wide scheduling center
Manage PN800 factory network, RFO810 remote fiber IO, and whole station label data
Multi system integration
Linkage HMI, engineer station, third-party SCADA/MES, unified protocol conversion
Online maintenance
Support non-stop download of configuration, online diagnosis, and fault self check
4、 System configuration relationship (your previous complete set of modules)
CP800: Main Control CPU (Brain)
PNI800: Ethernet upper computer communication gateway
RFO810: Fiber optic remote IO communication
TRICONEX 3009/3625/3721: Independent SIS safety system, interlocked with DCS CP800
5、 Typical industries
DCS control system for large-scale processes in power, chemical, oil and gas, metallurgy, and water treatment