Mitsubishi Electric Q03UDVCPU User Manual page 175

(2) Operations of special relay and special register
The following shows the operations of special relay and special register during the operation of writing to the IP
address storage area (flash ROM).
(a) Operations of special relay and special register during the operation of writing to
the IP address storage area (flash ROM)
Write request ON
(SM1292)
OFF
Write complete
ON
(SM1293)
OFF
Write error
ON
(SM1294)
OFF
Write error cause
(SM1298)
(b) Operations of special relay and special register when the operation of writing to the
IP address storage area (flash ROM) failed
Write request ON
(SM1292)
OFF
Write complete
ON
(SM1293)
OFF
Write error
ON
(SM1294)
OFF
Write error cause
(SM1298)
(3) Cause of failure to write to the IP address storage area (flash ROM)
If the processing of writing to the IP address storage area (flash ROM) is not completed, the error cause is stored
in SD1298 (IP address storage area write error factor).
Value in SD1298
100
H
200
H
300
H
400
H
Write start
Write complete
END END END
processing processing processing
Write failed
Write start
END END END
processing processing processing
The value in SD1292 to SD1297 is outside the setting range.
An error occurred during writing.
Writing cannot be performed since the following functions are being executed.
• Online Program Change
• Export to ROM format
• Write to PLC (flash ROM)
• CPU module data backup/restoration function
Writing is started during clear processing execution.
CHAPTER 11 IP ADDRESS CHANGE FUNCTION
END
processing
Turn from off to on write
request (SM1292) to turn
off the system in the END
processing.
0
END
processing
Turn on and then off the
write request (SM1292)
to turn off the system
during the END processing.
Error cause
Error cause
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