Save/Restoration Of Offset/Gain Value - Mitsubishi Electric MELSEC L Series User Manual

8.12

Save/Restoration of Offset/Gain Value

Common
The D/A converter module can save and restore the offset/gain values in the user range setting.
• Save: Saves the offset/gain information, registered in this module by making the offset/gain setting, in the
CPU module.
• Restoration: Writes the information saved in the CPU module to this module.
When the D/A converter module needs to be replaced in case of failure, this function enables to pass the offset/gain
value from a module to be changed (disconnected) to the newly-connected module.
If multiple D/A converter modules are installed in the same system, this function enables to apply the offset/gain value
set with one D/A converter module to the other D/A converter modules.
However, if the offset/gain values are saved and restored, the accuracy after the restoration decreases by
approximately three times compared to that before the restoration. Reconfigure the offset/gain setting when required.
(1) Procedure for saving and restoring offset/gain values
(a) To restore offset/gain values onto a new replacement module:
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1.
Save the offset/gain values.
2.
Replace the D/A converter module.