Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 397

8 TROUBLESHOOTING
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[Data Link Information]
7) Total Number of Linked Stations (SW0059)
Displays the total number of link stations set with the parameter.
8) Station of Maximum Normal Transmission (SW005A)
Displays the highest station number that is executing the baton pass
normally (the status where the transient transmission is possible).
The T.PASS LED of the network module turns on for stations executing the
baton pass normally.
9) Station of Maximum Data Link (SW005B)
Displays the highest station number that is executing data linking normally
(cyclic transmission and transient transmission).
The D.LINK LED of the network module turns on for stations executing data
linking normally.
10) Transmission Status (SW0047)
Displays the communication status of the host.
In Data Link
Suspend Data link (Other)
Suspend Data link (Host)
Baton Pass (No area)
Baton Pass (Parameter Halt)
Baton Pass (No Receive)
Disconnecting (No Baton)
Disconnecting (Link Error)
In Test
Resetting
Indication
MELSEC-Q
Description
Data link is being executed.
Other station stopped the cyclic transmission.
The host station stopped the cyclic
transmission.
No area is assigned for the host's B/W
transmission.
An error is identified in the host's parameters.
The common parameters have not been
received.
Station numbers are duplicated or the cable is
not connected.
The cable is not connected.
The online/offline test is being executed.
Hardware fault
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