Mitsubishi Electric MELSEC QS Series User Manual page 153

9
TROUBLESHOOTING
(3) Line test
This test checks the operating status of the connected remote stations.
Normal stations are displayed "blue", abnormal stations "red", reserved stations
"green", and unused stations "gray".
The line test is available only when the safety CPU module is in TEST MODE.
(a) Operating procedure
POINT
[Diagnostics] [CC-Link / CC-Link/LT Diagnostics]
1) Select "CC-Link Safety" for "Module Setting".
2) Specify the target master module for the line test with "Module No." or "I/O
Address".
3) Click the
Start Monitoring
4) Click the button.
Line Test
5) When checking the communication status of all stations
Select "All stations" for "Target station", and click the
6) When checking the communication status of a specific module
Select "Selected station No." for "Target station", specify the station number,
and click the
Execute Test
When conducting a line test, do not write any data to bit 8 (SB0008) of 5E0
608 (SW0008) in the buffer memory.
H
Also, if auto refresh devices are set for SB and SW in the network parameter
setting, do not write any data to the relevant CPU devices.
9.4 CC-Link Diagnostics Using GX Developer
button.
button.
button.
Execute Test
and
H
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