Product specifications

Section 5 Maintenance MOD5 Interface - CI872
3BSE036351-510 A 235
Rx/Tx LED's are flashing,
but there is no
communication
Possible Cause 1: MTMConnect and/or MTMReadCyc
and/or MTMDefCyc are disabled.
Corrective Action 1: Enable MTMConnect, MTMReadCyc,
and MTMDefCyc function blocks.
Possible Cause 2: MTMConnect and/or MTMReadCyc
and/or MTMDefCyc function blocks show a bad status.
Corrective Action 2: Check the reason for the bad status
(see the status codes for MTMCommLib in the Online Help),
and take the appropriate corrective action for the bad status.
Possible Cause 3: The value for the Channel parameter in
the MTMConnect function block is not in accordance with
the position of the CI872 module in the Hardware Tree.
Corrective Action 3: Ensure that the value of the Channel
parameter in the function block is in accordance with the
position of the CI872 module in the Hardware Tree.
Corrective Action 4: If the condition persists even after
performing corrective actions 1 to 3, then hot remove and
hot insert the CI872 module on the CEX-Bus and allow time
for the module to initialize.
If the corrective action is to replace the faulty CI872 module, replace it with
another CI872 module which has the same version of hardware and firmware.
CI872 supports hot swap.
Table 46. MOD5 Communication Interface, Type CI872 - Indications and Fault Finding (Continued)
Indication Possible Causes, and Corrective Actions (for faults)