31
Replacing a synchronized primary PLC-CPM
1. [Optional] It is recommended to first transition the synchronized
primary CPM into the secondary role by issuing the redundancy
switchover command from ControlEdge Builder. This step {1}
transitions the synchronized secondary (redundant partner) CPM
into the primary role and {2} the CPM to be replaced restarts into
the secondary role.
2. Using an external (user-supplied) switch, disconnect the power
supply in the rack (associated with the CPM to be replaced) from
the source main power. If the optional switchover command was
not issued, this step transitions the synchronized secondary
(redundant partner) CPM into the primary role. and {2} the CPM to
be replaced restarts into the secondary role.
3. Observe where communications cables are plugged into the CPM
to be replaced, and if necessary, tag them to identify their
functions. Unplug all communications cables.
4. At the top and bottom of the module to be replaced, loosen the
captured screws that secure the module in the rack, and remove
the CPM from the rack. (Note that an up/down rocking motion
helps with removal of the module).
5. Ensure that the new CPM is properly aligned with the slot guides,
insert the new CPM in the rack, and secure it in place with the
captured screws at top and bottom of the module.
6. Re-install communications cables.
7. Set the new CPM’s mode switch position to STOP (to enable
firmware update).
8. Using an external (user-supplied) switch, reconnect the power
supply in the rack (associated with the new CPM) to the source
main power.
9. Optional-for IPsec enable system, setup certificates and IPsec
policy in the CPM. See "Setup certificates and IPsec policy in
PLC/RTU" in the ControlEdge PLC and ControlEdge RTU Network
and Security Guide for more information.
10. Use the ControlEdge Builder to load firmware to the new
secondary CPM to match the version that is running in the
primary redundant partner CPM.
11. Switch the new secondary CPM’s mode switch position to match
the primary redundant partner CPM.
12. Check the redundancy synchronization state by monitoring the
role LED of the secondary CPM.
To Next Page
Loading...