Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 421

8 TROUBLESHOOTING
Baton pass status (host) (SW0047)
Cause of data link stop (SW0049)
Baton pass status of each station
(SW0070 to SW0073)
Loopback station (forward loop side)
(SW0099)
Loopback station (reverse loop side)
(SW009A)
Cyclic transmission status of each
station (SW0074 to SW0077)
Dedicated instruction
Target network number
Target station number
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• Intelligent Module Information
The status of a network module when the error, which is currently selected
under "Error History List", had occurred is displayed.
1: When the error that simultaneously occurs with a network error is
selected, the status right before the error occurrence may be displayed
under Intelligent Module Information.
For the network module, the following will be displayed.
Item
3) Create CSV File button
Click this button to output the module error history in a CSV file.
POINT
(1) If errors frequently occur in the network module, "*HST.LOSS*" may be
displayed instead of error codes in the Error Code column.
(Example)
If too many "*HST.LOSS*" are displayed, increase the number of errors to be
collected per scan in the "PLC RAS" tab of the "Q Parameter Setting" dialog
box. For setting, refer to the user's manual (Function Explanation, Program
Example) for the CPU module used.
(2) When the same errors consecutively occurred, only the error code for the first
occurred is displayed on the "Error History" screen.
Baton pass status of the host station
Cause of data link stop of the host station
Baton pass status of each station
0: Normal
1: Abnormal
Station number of which station is performing a loopback in the forward loop.
For the remote master station, [7D
Station number of which station is performing a loopback in the reverse loop.
For the remote master station, [7D
Cyclic transmission status of each station
0: Executing cyclic transmission
1: Cyclic transmission not executed
Dedicated instruction on which an error has occurred
Network number of a station to which a dedicated instruction was executed,
resulted in an error
Station number of a station to which a dedicated instruction was executed,
resulting in an error
MELSEC-Q
1
Description
] is displayed.
H
] is displayed.
H
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