Mitsubishi Electric MELSEC Q Series User Manual page 102

3 SPECIFICATIONS
Tag collection
Logging
Event monitoring
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REMARKS
(a) Collection monitor cycle
The Web server module performs tag collection, logging and event monitoring in
this order.
Example) When the same time value is set to the Tag collection interval,
logging interval and event interval:
Tag collection
Logging
Event monitoring
(b) Influence of tag collection, logging and event monitor on execution intervals
In the following cases, the processing of tag collection, logging or event monitor
will delay.
1) When the maximum cycle time is longer than the time set to tag collection,
logging or event monitor
2) When the tag collection, logging or event monitoring are overlapped with the
execution of the dedicated instruction or the FTP/Web browser operation.
Sampling cycle
(Example) When logging timing is delayed:
Sampling cycle
No event
MELSEC-Q
Event detected
(Event processing)
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