Mitsubishi Electric Q80BD-J71BR11, Руководство пользователя

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MELSEC
9 UTILITY OPERATIONS
9.2.8 Error history monitor screen operation
This screen displays the history of loop errors, communication errors, and transient
transmission errors.
POINT
(1) Up to 16 items are stored in the loop switch data history.
When there are more than 16 items, items will be erased from the history,
starting with the oldest one.
(From old to new: No. 1 to No. 16)
(2) Refer to the following manuals for details on the error code and error type of a
specific transient transmission error that may be displayed:
• Q Corresponding MELSECNET/H Network System Reference Manual (PLC
to PLC network)
• For QnA/Q4AR MELSECNET/10 Network System Reference Manual
Item Content
Channel
Sets the channel (MELSECNET/H board) perform error history monitor.
Own Station Information
Displays the host information.
Loop Switching
Displays the loop change factors and status after changing.
(For optical loop)
Item Description
Sta. No.
Displays the station number that requested a loop switch and
loop back.
Factor
Displays the factor by which loop switch and loop back were
executed.
Switched to Displays the data link status after a loop switch.