Mitsubishi Electric Q26UD(E)HCPU User Manual page 275

Melsecq series
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(5) Operation in case of system switching occurrence during online module
change (When Redundant type extension base unit is used)
The following describes the procedures to be taken when the system switching occurs during online module
change is performed to the module mounted on the extension base unit in the Redundant CPU.
1.
Connect GX Developer to the new control system.
2.
Check the status of the module being replaced on the System monitor screen.
(The online module change status can be checked with SM235 of the new control system and standby
system.)
3.
Select "Online module change" in the System monitor screen while the online module change is
being performed. The following screen appears.
4.
The operation that has been executed before the system was switched continues.
CHAPTER 14 MODULE CHANGE DURING SYSTEM OPERATION
14
273

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