Trigger Conditions - Mitsubishi Electric QJ81DL96 User Manual

7
DATA LOGGING FUNCTION

7.3.3 Trigger conditions

Conditions shown in the following table can be selected as the trigger conditions.
Single condition
Compound condition
(1) Single condition
Data conditions
Fixed cycle [seconds]
Time interval specification
Time specification
At startup of module
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- 13 7.3 Logging Types
7.3.3 Trigger conditions
Condition Trigger type
-
OR combine
AND combine
Number of times
Order
For single conditions, triggers occur by establishing a single condition.
Select one condition from the conditions shown in the table below.
Condition
Compares device values or a device value and constant, and a
trigger occurs when the condition is established.
Comparison
(
At the time of change of
A trigger occurs when the device value changes.
value
A trigger occurs at a fixed cycle (seconds).
A trigger occurs at the time interval of every specified hour/
minute/second.
A trigger occurs at the specified time.
A condition is established at either of the following timing.
• When the programmable controller CPU is powered ON
• After startup when the programmable controller CPU is reset
Detailed condition
-
-
-
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.
Description
-
)
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
Reference
Section 11.5.10