ABB PM862 is a processor unit in the AC 800M controller series. It is mainly used in the field of industrial automation, providing advanced processing, communication, and redundancy functions for complex systems to achieve efficient control and monitoring. Its specific parameters are as follows:

Processor: Some models such as PM862K02 adopt the MPC866 processor with a clock frequency of 67MHz.

Memory: 32MB RAM, among which approximately 23.521MB can be used for application programs; 4MB Flash PROM is used for storing firmware. It supports a Compact Flash interface, which can be used for application programs and cold storage of data.

Communication Interfaces: Equipped with 2 RJ45 Ethernet ports (IEEE 802.3, 10Mbit/s) for connecting to the control network; 2 RJ45 serial ports, among which COM3 is an RS-232C port with modem control signals (75 - 19200 baud), and COM4 is isolated for connecting configuration tools.

Power Supply: Input is 24V DC, with a voltage range of 19.2 - 30V DC. The typical current consumption is 210mA, and the maximum is 360mA. The typical power consumption is 5.1W, and the maximum is 8.6W.

I/O Related: It supports connecting up to 12 S800 I/O units via the electrical module bus. For non-redundant CPUs, 1 electrical and 7 optical I/O clusters can be connected to the module bus. The maximum I/O capacity of a single PM862 module bus is 96 I/O modules, and 84 I/O modules in redundant configuration. The module bus scanning rate is 0 - 100ms.

Mechanical Parameters: Dimensions are approximately 135mm × 186mm × 119mm (width × height × depth), and the weight is about 2.7kg.

Others: The protection rating is IP20. It supports CPU redundancy and can achieve 1ms clock synchronization between AC 800M controllers through the CNCP protocol. The maximum number of events in the event queue of each OPC client in the controller can reach 3000.