Mitsubishi Electric MELSEC iQ-R Series User Manual page 458

Executing the programmable controller CPU information clear request
1.
In the "Intelligent Function Module Monitor" screen, set "4C43H" to the 'Programmable controller CPU information clear
request' (Un\G128).
2.
Check the 'Programmable controller CPU information clear request' (Un\G128) turns to "0000H" with the Buffer Memory
Batch Monitor function.
Precautions
• Execute the programmable controller CPU information clear after communication with the target device is stopped. In
addition, do not perform data communication with the target device during the programmable controller CPU information
clear processing. (If any data are received from the target device during the programmable controller CPU information clear
processing, the data will be discarded.)
• When a modem is connected, cut off the line linked with the target device before executing the programmable controller
CPU information clear. (The line is cut off at execution of the programmable controller CPU information clear.)
• Do not execute the UINI instruction during the programmable controller CPU information clear processing. If the
programmable controller CPU information clear is attempted during execution of the UINI instruction, the clear processing
will be executed after completion of the UINI instruction.
27 TROUBLESHOOTING
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27.2 How to Clear Programmable Controller CPU Information