Filter
Top Products
6
- 20
6.1 DB Interface Function
6.1.11 Precautions
6
FUNCTIONS
6.1.11 Precautions
(1) Operation behavior of jobs
(a) When a trigger condition for a job is met again during execution of the job
1) When [Trigger buffering] is disabled for the job
Because the job is being executed, it is not executed again.
2) When [Trigger buffering] is enabled for the job
The trigger information is stored in the trigger buffer, and after completion of
the current job execution, the job is executed based on the trigger information.
(b) When trigger conditions for multiple jobs are met concurrently
• Up to three jobs can start their executions concurrently in the order in [Job
settings].
• After completion of these jobs, executions of the other jobs are started
sequentially.
Note that, if a job uses the same item in [Server service settings] that is
currently used for another job, the job is not executed until another job
execution is completed.
(c) Monitoring interval timeout
Depending on the number of set jobs or the trigger condition setting, the
monitoring interval timeout may occur.
Figure 6.15 When trigger condition is met again during execution of the job set to [Value monitoring startup]
Figure 6.16 When trigger condition is met again during execution of the job set to [Value monitoring startup]
Sampling
interval
Job startup
Job execution
Job startup
Job execution
Job startup
Job execution
Another job is not executed during job execution.
Condition value
Tag component valu
e
Sampling
interval
Job execution 1)
2)
Condition value
Tag component value
Trigger information 2)
3)
4)
Trigger buffer
3) 4) 5)
Job
startup
Job
startup
Job
startup
Job
startup
Job
startup