Event Conditions - Mitsubishi Electric QJ81DL96 User Manual

8
EVENT LOGGING FUNCTION

8.1.2 Event conditions

'Event conditions' are selected from the conditions shown in the table below.
(1) Single condition
A single condition compares monitoring data and the trigger value (limited to constant
values) with the monitoring condition.
When the condition changes from not being established to being established, the
event occurs.
When the condition also changes from being established to not being established, the
event is restored.
(a) Comparison of a bit device value set as an event condition
Event
Event type
condition
Single
-
condition
Comparison
Compound
conditions Number of times
Order
Event condition
M0 = ON
M0
Event
Detailed condition
-
AND combine
OR combine
Number-of-times conditions to be noted when a
terminal condition holds true.
When a specified number of times is exceeded.
Abnormal pattern is detected.
Normal pattern is detected.
Timeout detected.
Legend
Event occurrence Event restoration
8.1.2 Event conditions
Reference
(1) in this
section
(2) (a) in this
section
(2) (b) in this
section
(2) (c) in this
section
(2) (d) in this
section
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8.1 Events
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