ABB CI853K01 3BSE018103R1 Communication Interface Module

3BSE018103R1 (CI853K01) RS-232 module protocols:

COMLI can be used on the built-in COM3 port and optionally on the CI853 ports. The cable length can be extended considerably (to several km) using a fibre optic converter. RS-232C is the standard communication interface used for serial communication with COMLI. The CI853 supports Hot Swap. COMLI is an ABB protocol for data transmission between controllers. It is designed for asynchronous master/slave communication in half-duplex. COMLI protocol supports dial-up modems controlled from the application. CI853 supports both Master/Slave modes in COMLI.

MODBUS RTU is a standard protocol widely spread because of its ease of use and reliability. Modbus RTU is an open, serial (RS-232 or RS-485) protocol derived from the Master/Slave architecture, exchanging information half-duplex mode. The Modbus functionality can be configured both on the COM ports of AC 800M and CI853. Module Redundancy is not available in MODBUS RTU. CI853 supports only Master mode in MODBUS RTU.

Features and benefits：

*COMLI can be used on the built-in COM3 port and optionally on the CI853 ports. RS-232C is the standard communication interface used for serial communication with COMLI. The CI853 supports Hot Swap. COMLI is an ABB protocol for data transmission between controllers.

*MODBUS RTU is an open, serial (RS-232) protocol derived from the Master/Slave architecture, exchanging information in half-duplex mode. The Modbus functionality can be configured both on the COM ports of AC 800M and CI853.

*Siemens 3964R can be used on the built-in COM3 port and optionally on the CI853 ports. A standard RS-232C/485 communication channel is required.

*Self-defined Serial Communication can be used on the built-in COM3 port (on an AC 800M Controller) and optionally on the CI853 ports.

*The CI853 module also supports Hot Swap.

Main Functions and Features:

Supports RS-232, RS-422, and RS-485 physical interfaces (selectable via internal jumpers or software configuration).

Maximum communication rate up to 115.2 kbps.
Electrical isolation between the channel and the system backplane improves interference immunity.
Supports standard serial protocols such as Modbus RTU, Siemens 3964R, and custom ASCII protocols (specific protocols must be configured in Control Builder M).
Suitable for point-to-point or master-slave serial communication architectures.
Equipped with status indicator LEDs to display module operation, data transmission/reception, and fault status.
Supports hot-swapping (system support required).
Installation in AC 800M I/O racks; requires a compatible base (e.g., TB853).

Technical Parameters:

Interface Type: 1-channel serial communication (configurable to RS-232 / RS-422 / RS-485)
Maximum Baud Rate: 115200 bps
Electrical Isolation: Yes (isolation voltage between channel and backplane) ≥500 V AC)
Power Supply: 24 V DC from the AC 800M backplane
Power Consumption: Approx. 1.5 W
Operating Temperature: 0°C to +60°C
Storage Temperature: -25°C to +70°C
Mounting Method: Insert into the AC 800M module rack
Protection Rating: IP20 (Indoor control cabinet use only)
Compatibility:

Suitable for AC 800M series controllers (such as PM851, PM856, PM864, etc.)
Requires ABB Control Builder M engineering software for configuration and protocol setup
Compatible with ABB 800xA systems (V4.1 and above recommended)
Requires TB853 base (order number usually 3BSE018104R1)