Model Interpretation

PM: Processor Module (Processor Module)

864: Mid-range high-performance CPU series in the AC800M series

AK01: Hardware version and configuration identifier, corresponding to order number 3BSE018161R1 Technical Parameters

Processor: PowerPC MPC862, 96 MHz

Memory: 32 MB RAM (23.522 MB available for user use), 2 MB Flash PROM

I/O Capacity: Up to 256 I/O points; supports S800 I/O modules

Power Supply: 24 V DC (19.2 – 30 V DC); typical 6.9 W, max 11.4 W

Operating Temperature: +5°C to +55°C; storage -40°C to +70°C

Humidity: 5% - 95% RH, non-condensing

Protection: IP20 (industrial enclosure required)

Dimensions (Width × Height × Depth): 196 × 119 × 135 mm (with base)

Weight: Approximately 1.2 kg (with base)

Redundancy: CPU hot-standby, ≤ 50 ms seamless switching-over Interface and Communication Configuration

Ethernet: 2 × RJ45 (10 Mbps), TCP/IP, Modbus TCP

Serial: 2 × isolated RS-232/485 ports (COM3: RS-232C; COM4: isolated)

Expansion: CEX-Bus for S800 I/O and communication modules

Indicators: LED for power, operation, fault, communication; reset button

Protocols: Profibus DP, Modbus RTU, OPC UA, IEC 61131-3 compliant Core Functions

Executes real-time control logic and PID loops for medium-complexity processes

Centralizes data acquisition, historical logging, and parameter management for up to 256 I/O points

Supports system-wide alarm handling and self-diagnosis for fast fault localization

Enables CPU hot-standby redundancy with bumpless switchover to eliminate single-point failures

Facilitates programming via Control Builder M (IEC 61131-3: ST/FBD/LAD/SFC)

Ensures data integrity with non-volatile RAM and Flash backup

Application Scenarios

Process Industry: Power plants, chemical, oil & gas, water treatment, metallurgy

Discrete Manufacturing: Automotive, food & beverage, packaging, plastics

Infrastructure: District heating, building management, smart grid monitoring

Medium-Scale Automation: DCS retrofits, high-reliability PLC systems, integrated control solutions Operation and Maintenance Instructions

Install on standard DIN rail with adequate ventilation; avoid direct heat and vibration

Use shielded cables for all communication wiring; separate power and signal cables to reduce interference

Configure and download programs via Control Builder M before commissioning

Regularly check LED status, connection integrity, and Flash backup health

The module has no user-serviceable parts; replace the entire unit upon permanent hardware failure

Store in dry, clean environment; operating humidity 5%–95% non-condensing