Status Row Edit: Inhibits tab
- Last UpdatedApr 24, 2025
- 2 minute read
Use the Inhibits tab in the status Row Edit dialog box to inhibit alarming or logging of uncommanded state changes, or when commands generated by the automated process fail.
Alarms are normally annunciated and displayed in easy eXtended Operator Station (ezXOS). However, for some conditions, it may be desirable to inhibit specific alarms.
The Inhibits tab allows you to inhibit alarms and logs generated due to uncommanded changes. Uncommanded changes are those that occur without your intervention. For example, if someone in the field opens a valve, the change is considered to be uncommanded since the change did not result from the Controller’s action.
Note: In a distributed installation, alarm acknowledgement is local to a system and is not replicated to other systems. Hence, for the same point, a Controller on one system handles alarm acknowledgment completely independent of Controllers on the other systems. Alarms are distributed to other systems depending on the alarm configuration option specified.
Refer to the table below for field descriptions and instructions on how to configure the editable fields.
Items on the Inhibits Tab in the status Row Edit Dialog Box
|
Items |
Description |
|---|---|
|
Off Normal Alarm |
Select to inhibit alarming when the point undergoes an uncommanded change to an abnormal state. |
|
Normal Alarm |
Select to inhibit alarming when the point undergoes an uncommanded change to the normal state. If an unacknowledged abnormal state alarm exists, the change to normal state alarm occurs whether or not this checkbox is selected. This ensures that the Controller is aware that the point’s alarm state changed. |
|
Off Normal Log |
Select to inhibit logging when the point undergoes an uncommanded change to an abnormal state. |
|
Normal Log |
Select to inhibit logging when the point undergoes an uncommanded change to the normal state. |
|
Automated Commands |
Select these checkboxes to inhibit alarms and events when commands generated by the automated process fail. For further information, refer to Automated Process Commands Inhibit. |