I. Basic Information
Brand: ABB
Model: PM865
Ordering Part Number: 3BSE030193R1 (Single-unit non-redundant version PM865K01; Redundancy kit is PM865K02)
Platform: AC 800M Controller, System 800xA DCS System
Product Type: High Integrity Safety-Class CPU Master Control Processor Module
Safety Certification: TÜV IEC 61508 SIL3 Certification, capable of simultaneously achieving process control + SIS safety interlock integrated deployment by ABB Group
Installation Specifications: Standard 6U VME Rack, Accompanying Base TU842/TP830, Supports Hot Swap for Online Replacement
Core Hardware Parameters
Processor
MPC862P 32-bit RISC Processor, Main Frequency 96MHz, Boolean Operation Execution Speed Approximately 0.17ms/1000 Logical Instructions, Hard Real-time Deterministic Scheduling, Ensuring PID Regulation, Safety Interlock Response within Milliseconds.
Memory Configuration
Running RAM: 32MB
Program固化 Flash： 4MB
External CF Card Slot： For Firmware Upgrade， Program Backup， Event/ Fault History Storage
Interface Configuration
CN1/CN2： Dual 10M Redundant Ethernet， Access to 800xA Control Network， Achieving Upper-Level HMI， Engineer Station Communication
COM3： RS232 Debug Serial Port， Local Program Download， Fault Diagnosis
COM4： Isolated RS232， Special Debug Port， Preventing On-site Interference from Damaging Debug Port
CEX Bus： Realizing Redundant Data Synchronization between Primary and Backup CPUs； ModuleBus Backplane Bus for Expansion of S800 Series I/O Modules
Power Supply and Power Consumption
DC 24VDC (19.2～30VDC)， Maximum Power Consumption of the Entire Machine Approximately 20W Environmental parameters
Operating temperature: 5℃ – 55℃
Storage temperature: -40℃ – +70℃
Humidity: 5% – 95% RH (no condensation), protection grade IP20, complies with industrial EMC standards
Core Functional Features
1. Supports 1:1 hardware redundancy architecture
When dual CPU redundancy configuration is in place, the master-slave switching time is less than 100ms, the running data is synchronized in real time, single CPU failure has no disturbance switching, the device does not stop running, suitable for key process circuits in power plants and chemical industries.
2. SIL3 high integrity safety control
Combined with SM810/SM811 safety monitoring module, it can simultaneously run conventional process control logic and SIL safety programs such as ESD emergency stop, fire and gas protection within the same controller, eliminating independent SIS hardware, reducing project investment and operational complexity. ABB Group.
3. Rich industrial bus expansion
Can be expanded through communication interface modules such as CI801, CI840, CI854: Profibus DP, Modbus TCP/RTU, DeviceNet, IEC60870-5-104, etc., connecting third-party PLCs, instruments, relay protection devices.
4. Full-dimensional hardware self-diagnosis
Power-on self-check, memory verification, communication link, I/O bus faults are detected in real time, panel LED status indicator lights + system event alarms, accurately locate CPU, network, backplane, I/O faults, supports SOE millisecond-level event sequence recording.
5. Standard IEC 61131-3 programming
Supports ladder diagram LD, function block FBD, structured text ST, sequential function chart SFC programming languages, suitable for complex closed-loop regulation, sequential control, interlock, batch process control scenarios.
Typical Supporting Hardware
Installation base: TU842 (redundant rack), TP830 (single machine rack)
Safety monitoring module: SM810/SM811 (realize SIL3 safety certification)
Communication interface card: CI801, CI854, CI840, etc.
S800 series AI/AO/DI/DO I/O modules
Redundant synchronization cables TK850, industrial CF storage card
Typical Application Scenarios
DCS + safety interlock integrated control for boilers, steam turbines, water treatment systems in thermal power, biomass, and waste incineration plants
Process control for petroleum, chemical, coal chemical plants, ESD emergency stop, F&G fire and gas protection systems
Automation control systems for large-scale integrated devices in metallurgy, cement, pharmaceuticals, water treatment
High-reliability redundant control systems for substations, long-distance pipeline compressor stations, LNG stations
Panel Indicator Light Explanation
POWER: Green light is always on when power is normal
RUN: Controller is running normally, constantly on, flashing indicates program not downloaded or fault
FAULT: Red light alerts when hardware, program, or communication is abnormal
CN1/CN2 ACT: Network interface link, data reception and transmission status indicator lights
REDUND: Redundancy mode status indicator light
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