Mitsubishi Electric MELSEC iQ-R Series Manual page 41

Module control start
The following shows the procedure to restart the module control. In this procedure, complete the online module change and
restart the control of the new module. Before restarting the control of the module, check the following precautions.
■Precautions
• Make sure the new module is mounted completely and the module fixing hook is securely fixed.
• Make sure the connectors and terminal blocks connected to the module are free from looseness and rattles.
■Procedure
Module control start
Turn on 'Module control resumption request
flag' (SM1608).
Normal operation (0) is
stored in 'Online module change
progress status' (SD1617).
Yes
Check that 'Online module change
status flag' (SM1617) is off.
Check that the newly-mounted module
has started the control.
Complete
To check the control restart, check the following depending on the module.
■Redundant function modules
These modules have no items to check. The online module change has been completed.
■I/O modules
These modules have no items to check. The online module change has been completed.
No
Check the items of troubleshooting
No. 7, and take the action.
3.4 Changing a Module by Controlling Special Relays and Special Registers
3 REPLACEMENT PROCEDURE
3
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