You use Alarm Strings to name alarm states. An alarm displays the string for its alarm state when %State is included in the alarm message.
Alarm messages are configured in the Point Properties and Alarm Definition dialog boxes.
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Analog point alarm strings. |
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Digital point alarm strings. |
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Alarm string sets. |
Analog point alarm strings
For analog points, you can define up to four alarm values for a point. Each value corresponds to an alarm state; each state has a corresponding alarm string:
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Point Value |
Alarm State |
%State field Display |
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Greater than or equal to Alarm High. |
Alarm High |
Alarm High Msg |
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Greater than or equal to Warning High and Less than Alarm High. |
Warning High |
Warning High Msg |
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Less than or equal to Warning Low and Greater than Alarm Low. |
Warning Low |
Warning Low Msg |
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Less than or equal to Alarm Low. |
Alarm Low |
Alarm Low Msg |
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Less than Warning High and Greater than Warning Low. |
Normal |
Normal Msg |
Digital point alarm strings
For digital points, only one alarm state can be defined. That is, a digital point is in alarm state when it is either 1 or 0. Otherwise, the point's value is in the Normal state. Also, note the following:
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Point Value |
Alarm State |
%State field Display |
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1 |
Alarm state |
Alarm High Msg |
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0 |
Alarm state |
Warning High Msg |
Alarm string sets
An index number, which is specified when a set is defined, identifies each set of alarm strings. You can configure up to 99 alarm string sets, numbered 1 through 99. When you configure a point you can select the set that applies to the point for inclusion in the point's alarm message.
The CIMPLICITY default configuration includes a set of alarm strings for Index number 1. The Index number 1 alarm string is the default when you add a device point. This string may be modified but should never be deleted.
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Alarm string configuration. |
