TRICONEX 3664
Based on the available information, here’s the English information for the ABB AC800M-PM861A module:
Product Name: PM861A Processor Unit
Product Description: The ABB PM861A (part of the AC800M controller family) is a central processing unit (CPU) module designed for various industrial control applications within the ABB Ability™ System 800xA and the AC 800M series. It offers robust processing capabilities and communication features for demanding automation tasks. The CPU board contains the microprocessor, RAM memory, a real-time clock, LED indicators, an INIT push button, and a CompactFlash interface. It supports CPU redundancy for higher system availability.
Product Parameters (Typical):
- Processor Type: MPC860
- Clock Frequency: 48 MHz (some sources mention 24 MHz for earlier revisions)
- Memory (RAM): 16 MB (with approximately 7.155 MB available for application)
- Flash Memory: 2 MB for firmware storage
- Ethernet: 2 x Ethernet ports (10 Mbit/s, RJ-45)
- Serial Ports: 2 x RS-232C interfaces (one general, one for service tool)
- Redundancy: Yes, supports CPU redundancy.
- Power Supply: 24 V DC (19.2 – 30 V DC)
- Power Consumption: Typical: 250 mA, Maximum: 430 mA
- Cycle Time: Down to 1 ms per application program
