Limit Alarms
- Last UpdatedNov 15, 2022
- 3 minute read
Select the Attribute you want to configure in the Attributes List, then click Limit Alarms in the configuration pane to add the Limit Alarms Feature to the Attribute. Use the following table to configure the Limit Alarms feature.
|
Limit Alarms Option |
Associated Attribute |
Description |
Run-Time Access |
|---|---|---|---|
|
Limit Alarms feature |
LimitAlarmed |
If enabled, alarms will be triggered when the value reaches configured alarm limits. |
None |
|
HiHi |
HiHi.Alarmed |
If enabled, an alarm will be triggered when the Attribute value reaches the HiHi limit. |
None |
|
HiHi - Limit |
HiHi.Limit |
The HiHi limit that the Attribute value must exceed to trigger an alarm. |
Supervisory, User |
|
HiHi - Priority |
HiHi.Priority |
The value for the urgency of the alarm. Valid values are 1 through 999, with 1 being the most urgent. |
Supervisory, User |
|
HiHi - Alarm message |
HiHi.DescAttrName |
The name of the attribute (within the same object) to be used as the alarm message. The attribute you specify must be of type String or InternationalizedString, with a maximum string length of 329 characters. If no attribute is specified, the Attribute description is used as the alarm message. Click the ellipse button to access the Attribute Browser. |
Supervisory, User |
|
Hi |
Hi.Alarmed |
If enabled, an alarm will be triggered when the Attribute value reaches the Hi limit. |
None |
|
Hi - Limit |
Hi.Limit |
The Hi limit that the Attribute value must exceed to trigger an alarm. |
Supervisory, User |
|
Hi - Priority |
Hi.Priority |
The value for the urgency of the alarm. Valid values are 1 through 999, with 1 being the most urgent. |
Supervisory, User |
|
Hi - Alarm message |
Hi.DescAttrName |
The name of the attribute (within the same object) to be used as the alarm message. The attribute you specify must be of type String or InternationalizedString, with a maximum string length of 329 characters. If no attribute is specified, the Attribute description is used as the alarm message. Click the ellipse button to access the Attribute Browser. |
Supervisory, User |
|
Lo |
Lo.Alarmed |
If enabled, an alarm will be triggered when the Attribute value reaches the Lo limit. |
None |
|
Lo - Limit |
Lo.Limit |
The Lo limit that the Attribute value must exceed to trigger an alarm. |
Supervisory, User |
|
Lo - Priority |
Lo.Priority |
The value for the urgency of the alarm. Valid values are 1 through 999, with 1 being the most urgent. |
Supervisory, User |
|
Lo - Alarm message |
Lo.DescAttrName |
The name of the attribute (within the same object) to be used as the alarm message. The attribute you specify must be of type String or InternationalizedString, with a maximum string length of 329 characters. If no attribute is specified, the Attribute description is used as the alarm message. Click the ellipse button to access the Attribute Browser. |
Supervisory, User |
|
LoLo |
LoLo.Alarmed |
If enabled, an alarm will be triggered when the Attribute value reaches the LoLo limit. |
None |
|
LoLo - Limit |
LoLo.Limit |
The LoLo limit that the Attribute must exceed to trigger an alarm. |
Supervisory, User |
|
LoLo - Priority |
LoLo.Priority |
The value for the urgency of the alarm. Valid values are 1 through 999, with 1 being the most urgent. |
Supervisory, User |
|
LoLo - Alarm message |
LoLo.DescAttrName |
The name of the attribute (within the same object) to be used as the alarm message. The attribute you specify must be of type String or InternationalizedString, with a maximum string length of 329 characters. If no attribute is specified, the Attribute description is used as the alarm message. Click the ellipse button to access the Attribute Browser. |
Supervisory, User |
|
Alarm deadband |
LimitAlarm.ValueDeadband |
The amount, in engineering units, that the Attribute value must drop below either the HiHi limit or Hi limit, or increase above either the LoLo limit or Lo limit before an alarm is triggered. |
Supervisory, User |
|
Time deadband |
LimitAlarm.TimeDeadband |
The time, in seconds, that must elapse after the Attribute value exceeds an alarm limit before the alarm is triggered. |
Supervisory, User |