This extension implements a standard out-of-range alarming algorithm, and applies it to points with a status numeric output.
This alarm extension is available in the Extensions folder of the alarm palette.
Algorithm properties
These properties are unique to the OutOfRangeAlarmExt.
| Property |
Value |
Description |
| Fault Algorithm, High Limit |
true, false |
Enables and disables high limits for the fault algorithm. |
| Low Limit |
true, false |
Enables and disables low limits. |
| Deadband |
number |
Defines a band of input values where the output is zero. |
| High Limit Text |
text string |
Defines a bformat, which displays when a high limit is reached. |
| Low Limit Text |
text string |
Defines a bformat, which displays when low limit is reached. |
| Offnormal Algorithm, High Limit |
true, false |
Enables and disables high limits for the offnormal algorithms. |
| Limit Enable |
option box |
Enables the configuration of limits. |