Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 615

Process control function blocks
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When using the stop alarm in a program, refer to the following example.
Ex.
When a loop sensor error (SEA) of FIC001 occurs
Sensor error
In the example above, the sensor error (SEA) can be acquired with the tag data label of the variable part.
Relation between stop alarm (SPA) and other alarm processing
The following table shows the relation between the status of the stop alarm (SPA) and other loop alarm processing.
Stop alarm (SPA)
TRUE
FALSE
Stop alarm (SPA)
(1)
Alarms processing other
than stop alarm (2)
Alarm detection executed Alarm detection stopped Alarm detection executed
(1) Switch the stop alarm (SPA) to TRUE and FALSE using a program.
(2) The output open alarm (OOA) follows the processing in the program.
(3) When the stop alarm (SPA) is TRUE, the alarm detection processing is stopped. Alarms which have occurred are automatically reset.
FIC001
Result
Alarms processing other than stop alarm (MLA, MHA, DVLA, DPPA, PLA, PHA, LLA, HHA, SEA, DMLA) are stopped,
and then the alarm is automatically switched to FALSE.
Alarm processing other than stop alarm (MLA, MHA, DVLA, DPPA, PLA, PHA, LLA, HHA, SEA, DMLA) is executed.
TRUE
FALSE
Occurred
Reset (3)
TRUE
FALSE
Occurred
Reset (3)
Alarm detection stopped
Appendix 3 Related Functions of Process
t
A
t
APPX
613

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