ABB PM866AK01（3BSE076939R1）

ABB PM866AK01 (type 3BSE076939R1) is a high-power controller in the AC 800M series, designed for harsh industrial environment planning and suitable for complex control tasks in fields such as power, chemical, petroleum, and intelligent manufacturing. It has the central advantages of redundant architecture, real-time care, and multi protocol compatibility, and is the central control unit of ABB's industrial automation ecosystem. μ s level task cycle: suitable for high-speed motion control and power system maintenance (such as differential maintenance logic).

The CPU board contains the microprocessor and RAM memory, a real-time clock, LED indicators, INIT push button, and a CompactFlash interface.

The base plate of the PM866 / PM866A controller has two RJ45 Ethernet ports (CN1, CN2) for connection to the Control Network, and two RJ45 serial ports (COM3, COM4). One of the serial ports (COM3) is an RS-232C port with modem control signals, whereas the other port (COM4) is isolated and used for the connection of a configuration tool. The controller supports CPU redundancy for higher availability (CPU, CEX-Bus, communication interfaces and S800 I/O).