CI853 3BSE018103R1 通讯模块是 ABB 公司推出的一款高性能串行通信模块，属于 AC 800M 系列，

主要用于工业自动化系统中不同设备之间的数据交换与通信连接。

The CI853 3BSE018103R1 communication module is a high-performance serial communication module launched by ABB, belonging to the AC 800M series, mainly used for data exchange and communication connection between different devices in industrial automation systems.

1、 Core functions and features

Multi protocol support

Supports three serial communication standards: RS-232/RS-422/RS-485, allowing for flexible connection to third-party devices or traditional systems.

Built in Modbus RTU (master/slave) protocol, compatible with mainstream industrial equipment communication requirements.

Supports COMLI protocol (ABB specific protocol) to achieve efficient data transmission between controllers, and supports half duplex asynchronous master/slave communication mode.

Provide universal ASCII protocol, support custom protocol development, and adapt to special communication scenarios.

High performance hardware design

Optoelectronic isolation: The RS-422/RS-485 port has 500V electrical isolation, effectively preventing ground loop interference and improving communication stability.

Wide temperature operation: Suitable for industrial grade environments ranging from -25 ° C to+70 ° C, ensuring reliable operation under extreme temperature conditions.

Low power design: Powered by an AC 800M backplane (24V DC), with a power consumption of only 2-5W, reducing system energy consumption.

Compact size: Complies with the AC 800M standard module size (approximately 60mm x 120mm x 100mm), making it easy to integrate and install.

Flexible configuration and expansion

Adjustable baud rate: Supports baud rate configurations from 300 bps to 115.2 kbps to meet the communication speed requirements of different devices.

Automatic baud rate detection: It can automatically match the communication rate of connected devices, simplifying the debugging process.

Redundancy support: Can be used in conjunction with redundant controllers to improve system reliability through dual module configuration.

Hot swappable function: supports module insertion and removal while the system is running, reducing downtime and improving maintenance efficiency.

2、 Interface and Connection

physical interface

RS-232: 1 full duplex point-to-point communication interface, using 9-pin D-sub female connector (DB9).

RS-422/RS-485:1 half duplex/full duplex multi-point communication interface, supporting screw terminals or DB9 connectors (depending on version).

Fiber optic extension: Communication distances can be extended to several kilometers through fiber optic converters, adapting to long-distance transmission needs.

connected device

Can connect devices that support serial communication, such as PLCs, HMIs, frequency converters, and instruments.

In Modbus RTU networks, it can be configured as a master or slave to achieve data acquisition or master control with slave devices.

Support SCADA system data collection and remote monitoring to enhance industrial automation management level.

3、 Application scenarios

Industrial automation system integration

As a communication expansion module for the AC 800M controller, it enables serial communication with third-party devices such as sensors and actuators.

In a Modbus RTU network, act as the master station to centrally collect data from slave devices and upload it to the control system.

Data transmission between controllers

Implementing data sharing and collaborative control between different controllers through the COMLI protocol is suitable for distributed control system architecture.

Remote monitoring and data collection

Connect to SCADA system to achieve remote device status monitoring, data recording and fault diagnosis, and improve operation and maintenance efficiency.

4、 Summary of Technical Parameters

Parameter specifications

Model CI853K01 (3BSE018103R1)

Communication standard RS-232/RS-422/RS-485

Baud rate from 300 bps to 115.2 kbps (configurable)

The protocol supports Modbus RTU (master/slave) COMLI、 Universal ASCII Protocol

Interface type RS-232 (DB9 female head), RS-422/RS-485 (screw terminal or DB9)

Electrical isolation RS-422/RS-485 port 500V optoelectronic isolation

Working temperature -25 ° C to+70 ° C

Protection level IP20 (to be installed inside the control cabinet)

The power supply is provided through an AC 800M backplane (24V DC)

Power consumption is about 2-5W

Size approximately 60mm x 120mm x 100mm

Redundancy support (requires configuration of redundant controllers)

Hot swappable support