ABB CI853 COMMUNICATIONS - AC 800M COMMUNICATION INTERFACES

CI853 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 fiber 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 in 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.

GE 8621-FT-IS Intrinsically Safe Field terminal, standard

GE 8606-FT-RT Field terminal, RTD

GE 8622-FT-IS Intrinsically Safe Field terminal, loop-disconnect (not for 8 channel DI)

GE 8607-FT-TC Field terminal, 8-channel with T/C

GE 8623-FT-IS Intrinsically Safe Field terminal for 8220-DI-IS

GE 8608-FT-NI Field terminal, 8-channel, non-incendive

GE 8624-FT-IS Intrinsically Safe Field terminal with loop-disconnect

GE 8610-FT-NA Field terminal, non-arcing (Div 2)

GE 8625-FT-I SIntrinsically Safe Field terminal, THC

GE 8611-FT-FU Field terminal, non-arcing, fused (Div 2)

GE 8626-FT-IS Intrinsically Safe Field terminal, RTD

GE 8612-FT-NA 16-channel Field terminal, non-arcing

GE 8632-FT-NI 32-channel Field terminal

GE 8615-FT-4W Field terminal, 4wire (current sinking)

GE 8650-FT-PX 32-channel PX/Switch FTA for 8125/7

GE 8616-FT-FU PAC8000 Field terminal, fused

GE 8707-CA-08 8 module carrier

GE 8718-CA-NS BIM & Node Serices Carrier for Profibus & Modbus