ABB 3BSE030220R1CI850 (3BSE018106R1): MasterBus 300 ABB drive bus interface

Legacy Functional Equivalent (Older generation, limited redundancy support) CI853 (3BSE018103R1) Early PROFIBUS DP master module, single non-redundant bus port, lower max baud rate, no V1 acyclic function support, only for very old AC800M firmware versions. Cross-Protocol Communication Module Substitutes (Same CEX rack slot, different fieldbus) CI867 (3BSE056898R1): Modbus TCP/RTU communication interface Early PROFIBUS DP master module, single non-redundant bus port, lower max baud rate, no V1 acyclic function support, only for very old AC800M firmware versions. Cross-Protocol Communication Module Substitutes (Same CEX rack slot, different fieldbus) CI867 (3BSE056898R1): Modbus TCP/RTU communication interface