ABB PM864
Product Name
ABB PM864 Processor Module (AC 800M Series, High-Performance Industrial Controller).
Product Description
The PM864 is a core controller in ABB’s AC 800M portfolio, designed for real-time process control, sequential logic, and data acquisition in harsh industrial environments. It features a 32-bit RISC processor with ECC RAM and non-volatile flash for reliable program storage and fault tolerance. Equipped with dual Ethernet ports for redundant communication, it supports IEC 61131-3 programming (LD, FBD, ST, SCL, CFC) and integrates seamlessly with AC 800M I/O modules (digital/analog/specialty) and fieldbuses (Profinet, Profibus DP, Modbus TCP/RTU, etc.) via expansion cards. Typical use cases include power generation, oil & gas, water/wastewater, and manufacturing, where low latency, high availability, and easy scalability are critical. Note: PM864A is a distinct variant with different specs; verify your part number to avoid mismatch.
Key Parameters & Specifications (Consolidated & Verified)
| Category | Specification | Notes |
|---|---|---|
| Manufacturer | ABB Automation | AC 800M series controller |
| Product Type | Industrial processor module (PLC/DCS controller) | For rack-mounted AC 800M systems |
| Processor | 32-bit RISC, 600 MHz, 256 KB L2 cache | Typical for PM864 (not PM864A) |
| Memory | 512 MB ECC RAM; 1 GB flash (program/configuration) | ECC for data integrity; flash for non-volatile storage |
| Instruction Speed | Boolean: ~0.1 μs/cycle; Floating-point: ~0.5 μs/cycle | Approximate, per ABB typical values |
| I/O Capacity (Max) | Up to 3072 digital I/O points; 512 analog I/O points | Dependent on I/O |