Example: Use alarm triggers
This example shows how alarm triggers and message trigger values work together to trigger alarms.
Set up the alarm triggers:
Trigger (tag name) | Trigger type | Tag address |
|---|---|---|
Trigger1 | Bit | N7:0 |
Trigger2 | LSB | N7:1 |
Trigger3 | Value | N7:2 |
Set up the alarm messages:
Trigger | Value / bit | Message |
|---|---|---|
<AllTriggers> | 1 | High temp in vat area |
Trigger1 | 1 | Vat 100 temp high |
Trigger2 | 1 | Vat 101 temp high |
Trigger3 | 1 | Vat 102 temp high |
At runtime, these messages appear when the tag values (or bit positions) change to 1.
Notice that the <AllTriggers> message is configured to appear when any trigger’s value (or bit position) changes to 1.
Trigger and value | Messages triggered |
|---|---|
Trigger1 = 0001 | High temp in vat area Vat 100 temp high |
Trigger2 = 0003 | High temp in vat area Vat 101 temp high |
Trigger3 = 0001 | High temp in vat area Vat 102 temp high |
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