ABB CI840A PROFIBUS DP-V1 Communication Interface, ABB S800 I/O
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ABB CI840A 3BSE041882R1 PROFIBUS DP-V1 Communication Interface. For 1+1 redundant operation. Two CI840A and one TU847 or one TU846 must be ordered. The basic system software loaded in CI840A does not support the following I/O modules: DI830, DI831, DI885, AI880A, DI880, DO880 and ABB Drives.
ABB S800 I/O is a comprehensive, distributed and modular process I/O system that communicates with parent controllers and PLCs over industry-standard fieldbus technology and therefore can be used with a wide range of process controllers from ABB and other vendors.