Product specifications

Section 5 Maintenance PROFIBUS DP – CI854/CI854A
3BSE036351-510 A 215
RxB LED is OFF No communication on Line B.
• Check that slaves are configured and
connected to this line.
• If redundant slaves are used check that the
redundancy is working properly. The backup
slave has to answer to the life list requests
sent by the master.
• Check all cables and connectors for damage
and loose or poor connections.
DUAL LED is OFF on both
modules (CI854A only)
The CI854A board is in the process of being
restarted or configured. Allow time for this to
finalize.
Check that the redundancy for this module is set
within CBM and the configuration is downloaded.
CI854A supports hot swap.
Table 34. PROFIBUS DP CI854/CI854A – Fault-Finding (Continued)
Indication Possible Cause and Corrective Action