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Mitsubishi Electric GOT 1000 Series Manual Page 57

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(b) When busy (Interval that trigger conditions are met is shorter than processing time of action)
• Tag data and time that conditions are met are stored to the trigger buffer every time the conditions are
met.
• If an action cannot complete before another condition is met, up to 128 trigger data can be stored.
[GOT]
[When busy]
Job 1 ... 1)
Trigger conditions
Job 1 ... 2) Trigger data (Tag data and time)
are met
Job 3 ... 3) Trigger data (Tag data and time)
Job 1 ... 2)
Trigger conditions
are met
Job 3 ... 3)
Trigger conditions
are met
Time
The numbers 1) to 3) correspond to the order of that trigger conditions are met.
In this example, the jobs 1 and 3 access the same database.
(c) When becoming less busy (Interval that trigger conditions are met is longer than processing time of action)
• The action, which is specified by the data stored in the trigger buffer, is read and executed sequentially.
• When the action for the trigger data in the trigger buffer completes, the trigger data is cleared, and
another trigger data can be stored.
[GOT]
[When becoming less busy]
Time
The numbers 1) to 3) correspond to the order of that trigger conditions are met.
In this example, the jobs 1 and 3 access the same database.
POINT
POINT
POINT
(1) For job operation for which [Trigger buffering] is disabled, refer to the following:
5.3 (1) Operation behavior of jobs
(2) Whether the condition is changed from false to true is judged at collection of the tag.
6.7.2 Setting items in Trigger conditions
Trigger buffer
Job 1 ... 1)
Action is
executed
Trigger buffer
Job 1 ... 2)
Action is
executed
Job 3 ... 3)
Action is
executed
Data
trans-
mission
Database
The action for "Job 1 ... 1)" is executed.
The trigger data of "Job 1 ... 2)" and
"Job 3 ... 3)" is stored to the trigger buffer.
Time
Data
trans-
mission
Database
The action for "Job 1 ... 1)" is executed.
The action for "Job 1 ... 2)" and "Job 3 ... 3)",
which is specified by the data in the trigger
buffer, is executed sequentially.
Time
5.1 DB Interface Function
1
2
3
4
5
6
7
8
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