Mitsubishi Electric MELSEC iQ-R Series User Manual page 106

4
Do multiple
stations repeatedly fail
and recover?
YES
Troubleshoot the problem with reference to
"Troubleshooting by the status logging".
End
*6 Page 108 Status logging
*7 The item corresponds to the number of the check item for when cyclic transmission cannot be performed. Refer to the corresponding
check item and take the action. ( Page 113 When cyclic transmission cannot be performed)
*8 The item corresponds to the number of the check item for when transient transmission cannot be performed. Refer to the corresponding
check item and take the action. ( Page 116 When transient transmission cannot be performed)
*9 The item corresponds to the number of the check item for when operation error occurs on the master station. Refer to the corresponding
check item and take the action. ( Page 122 When operation error occurs on the master station)
4 TROUBLESHOOTING
104
4.3 Checking the System Status
NO
Faulty station type
*6
Intelligent device station
(local station)
Master station
Remote I/O station
YES
Are all RY outputs
disabled?
NO
Remote device station
Does the
YES
ready signal of the
remote device station
remain off?
NO
YES
Is the read/write
of word data disabled?
NO
Are data
YES
failed to be read/written
by the number of occupied
stations?
NO
YES
Are all RY outputs
disabled?
NO
YES
Is the read/write
of word data disabled?
NO
Are data
YES
failed to be read/written by
the number of occupied
stations?
NO
YES
Are all RY outputs
disabled?
NO
Is the read/write YES
of cyclic data disabled?
NO
5
Does the error
YES
code return to the response
status?
NO
YES
Is the link stop/
restart disabled?
NO
Is the detection
YES
of faulty stations disabled,
or does it take time?
NO
Remote I/O station
cyclic data failure
C1-1, C2-1
C1-1, C1-2
Remote device station
cyclic data failure
D5-1
D1-1, D2-1
D3-1
*7
D1-1, D4-1
D1-1, D1-2
Intelligent device station
cyclic data failure
E1-1, E2-1
E3-1
E1-1, E4-1
E1-1, E1-2
Intelligent device station
transient data failure
F1-3
*8
F1-1, F1-2, F1-4
Master station operation error
G1-1, G1-2
*9
G2-1
G3-1, G4-1