Features and benefits

• Used for connecting remote I/O and fieldbus instruments via PROFIBUS DP

• Possible to connect PROFIBUS PA to the CI854B via the PROFIBUS linking device LD 800P

• The CI854B can be set redundant

PROFIBUS DP is a high speed multipurpose bus protocol (up to

12Mbit/s) for interconnecting field devices, like remote I/O,

drives, low voltage electrical equipment, and controllers.

PROFIBUS DP can be connected to the AC 800M via the CI854B

communication interface. The CI854B includes two PROFIBUS

ports to realize line redundancy and it also supports PROFIBUS

master redundancy.

Master redundancy is supported in PROFIBUS-DP communication

by using two CI854B communication interface modules. The

master redundancy can be combined with CPU redundancy and

CEXbus redundancy (BC810). The modules are mounted on a DIN

rail and interface directly with the S800 I/O system, and other I/O

systems as well, including all PROFIBUS DP/DP-V1 and

FOUNDATION Fieldbus proficient systems.