ABB AC800M 3BSE053240R1 PM891

The ABB AC800M 3BSE053240R1 PM891 is a high-performance CPU module that is a key component in the System 800xA distributed control system. It is designed for industrial automation to meet complex control needs. The processor module is equipped with a power supply, CPU board and unit terminal, and integrates a microprocessor, RAM memory, real-time clock, LED indicator, INIT button and secure digital interface. This enables it to provide efficient and reliable data processing and control functions in industrial automation environments.

In addition, the PM891 module supports CPU redundancy design to ensure high system availability by providing additional processors. In the event of a failure of one processor, the other processor can take over, thus keeping the system running steadily. This design reduces the risk of system failure and improves the reliability of the entire industrial automation system2.

Product parameters:

Regarding the specific parameters of the ABB AC800M 3BSE053240R1 PM891 module, here are some key information:

The module supports the use of 24/48V DC binary module and -20 – +20 mA analog module 3.
The PM891 module contains two RJ45 Ethernet ports (CN1, CN2) for connecting to the control network and one RJ45 serial port (COM4), where the COM4 port is isolated for configuring tool 2.
The PM891 module also supports IP20 level protection without the need for additional housing, providing a modular design that allows for progressive scale-up 2