When The Module-Specific Backup Parameter Is Not Used - Mitsubishi Electric MELSEC iQ-R Series User Manual

Restrictions on the module-specific backup parameter
The back up and restoration by means of module-specific backup parameters fails in the following cases.
• When the control CPU is not the process CPU
• When replacing the D/A converter module with the programmable controller powered off
• When "Auto restore of Offset/gain setting with the module change" of the module parameter is set to "Disable"
In any of the cases above, back up or restore offset/gain values by the following method.
Page 90 When the module-specific backup parameter is not used

When the module-specific backup parameter is not used

Back up or restore offset/gain values by one of the following methods.
• Saving and restoring by dedicated instructions
• Saving and restoring by reading from and writing to the buffer memory
With the method above, offset/gain values can be restored to a new module, or the offset/gain values set in one module can
be applied to the other modules in the same system.
• To restore offset/gain values onto a new replaced module:
1 FUNCTIONS
90
1.18 Backing up, Saving, and Restoring Offset/Gain Values
1.
Save the offset/gain values.
2.
Replace the D/A converter module.
3.
Restore the offset/gain values.