13 TROUBLESHOOTING
13.4 CC-Link Diagnostics Using the GX Developer
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Check the status of each module after all the modules have been connected using CC-
Link dedicated cables, and verify that data link can be performed normally.
It is also possible when QJ61BT11 is mounted in the remote I/O station.
(1) Host monitoring
This function monitors the items such as the data link status of the host (the
station to which peripheral devices are connected).
(a) Operating procedure
Click "Diagnostics" and then "CC-Link diagnostics."
Set the host monitor applicable module with "Unit No." or "I/O address"
under the " Unit setting" and click "Monitor start."
(b) Monitoring items
1) Host station
Indicates whether the station that is being monitored is the master
station, a local station or the standby master station.
For a local station, the station number is also displayed.
2) Data link status
Displays the data link status of the host.
3) Action status
Displays the operating status of the host.
4) Switching status
Displays whether the data link is controlled by the master station or
standby master station.
5) Using loop
Displays the line in use.
6) Line status
Displays the line status.
7) Loop type
Displays the line type.
POINT
When conducting a network test, do not perform write to buffer memory address
5E0
.
H
MELSEC-Q
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