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8.1 Troubleshooting Flowchart
8.1.3 When "Error is found in data transmission"
8
TROUBLESHOOTING
Figure 8.10 When "Error is found in data transmission" (Continued)
Monitor link input (X) of master station,
which corresponds to input (X) of
remote I/O station.
NO (Link output (Y))
YES (Link input (X))
Is data link inexecutable
for link input (X)?
Does link input (X)
of master station turn
ON/OFF on monitor?
YES
YES
NO
NO
Set master station to STOP status.
Turn ON/OFF input (X) of remote I/O
station.
LEDs of output module
on remote I/O station turn on or off,
corresponding to link output (Y)
of master station?
Forcibly turn ON/OFF link output (Y)
of master station.
Check link parameter assignments.
Sequence program error.
Modify sequence program.
Error station is remote I/O station.