To include an alarm as an input in a Boolean block calculation, you must use the following format:
tag name:alarm type
Valid alarm types and their priorities include the following:
|
Priority |
Alarm Type |
Description |
|
1 |
COMM |
Communication Error (BAD value). |
|
1 |
OCD |
Open circuit detected. |
|
1 |
IOF |
General I/O Failure. |
|
1 |
FLT |
Floating Point Error. |
|
1 |
OVER |
Over Range. |
|
1 |
UNDER |
Under Range. |
|
1 |
ERROR |
Any Statistical Data block alarm. |
|
2 |
CFN |
Change from normal alarm (digital blocks only). |
|
2 |
COS |
Change of State alarm (digital blocks only). |
|
2 |
HIHI |
Block in HIHI alarm state. |
|
2 |
LOLO |
Block in LOLO alarm state. |
|
3 |
RATE |
Value exceeds rate-of-change setting. |
|
3 |
HI |
Block in HI alarm state. |
|
3 |
LO |
Block in LO alarm state. |
|
4 |
DEV |
Deviation Alarm. |
|
5 |
OK |
Block in normal state. |
