Product specifications

Section 5 Maintenance Modbus TCP Interface – CI867
3BSE036351-510 A 225
Modbus TCP Interface – CI867
Table 42. Modbus TCP Interface CI867 - Fault Finding
Fault Possible Cause and Corrective Action
Neither R(un) nor F(ault) LED's are
ON
The CI867 unit is in the process of being
configured. Allow time for this to finalize. If
the condition persist, and no other unit LED
on the CEX-Bus is lit:
• Check that a valid HW configuration
including the CI867 is downloaded to
the controller.
• Check the CEX-Bus fuse inside the
PM8xx processor unit.
• Initiate a reset signal (INIT) from the
PM8xx processor unit.
• Replace the CI867 unit.
F(ault) LED is ON The CI867 unit is in the process of being
restarted. Allow time for this to finalize.
Replace unit if the condition persists.
RxTx1/RxTx2 LED is OFF No Receive or transmit activity for
respective Ethernet channels.
RxTx1/RxTx2 LED is flashing Receive or transmit activity for respective
Ethernet channels is normal.
PRIM is OFF In non-redundant mode:
• This module is not started by the
application.
In redundant mode:
• This module is not started by the
application or this module act as
backup interface.