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9 TROUBLESHOOTING
Symptom
After power-up, I/O
communication starts
automatically.
9 - 7
Check
• Is "Start" set in Auto Communication Start
Setting (address: 0631
H
(I/O Communicating is ON?)
• Set "Not start" in Auto Communication Start
Setting (address: 0631
parameters to a flash ROM.
)?
• Setting I/O Communication Request (Y11) to
ON and then OFF will stop I/O
communication, and thereby I/O
Communicating (X01) is set to OFF.
MELSEC-Q
Action
), and save the
H
9 - 7
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Table of Contents
Troubleshooting
