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MELSEC-Q
8 TROUBLESHOOTING
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*4 : This can only be detected in the redundant system control system.
*7 : This can only be detected in the redundant system standby system.
Error
Code
(SD0)
*1
Error
Messages
Common
Information
(SD5 to 15)
Individual
Information
(SD16 to 26)
LED Status Operating
Statuses
of CPU
Diagnostic
Timing
RUN ERROR
6200
CONTROL
EXE.*4
Reason(s) for
system
switching
---- On Off Continue Always
CONTROL
EXE.
Reason(s) for
system
switching
---- On Off No error Always
6210
CONTROL
WAIT
*7
Reason(s) for
system
switching
---- On Off Continue Always
STANDBY
Reason(s) for
system
switching
---- On Off No error Always
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