Filtering on Priority
You can filter on any Priority by changing the Min Priority field in the Property Editor. You will only then see alarms displayed in the Alarm Status Table for the priority you set in the Property Editor and higher alarms. This example sets the Min Priority to 'High' priority, and the table displays only High, and Critical alarms. The number of alarms operators have to view can be narrowed down by using the Min Priority filter.
Filtering on Alarm State
There are four alarm states that an alarm can be in; 'Active and Unacknowledged', 'Active and Acknowledged', 'Clear and Unacknowledged', and 'Clear and Acknowledged'. Each of the four alarm states has a different color so you can quickly identify and respond to the most critical alarms. To enable and disable filtering for any of the alarm states, go to the Filters group in the Property Editor.
This example shows only alarms for Active and Unacked, and Clear and Acked. A good business practice is to show only the Active alarms that are either Unacknowledged or Acknowledged. It also reduces the number of alarms an operator has to scroll through.
Filtering on Source Path and Display Path
The Alarm Status Table has the capability to filter alarms based on the Source Path or Display Path.
The Source is the actual Tag path which means you can also use Tag folders in Ignition to filter for specific alarms. For example, you may want to filter for all Motor alarms in the Motors folder. You can enter *Tank* (using * as a wildcard) to look for all alarms with the Motor Tag Path. The Source and Display properties allow you to restrict the results of the query to one or more paths. Multiple paths may be specified with a comma. Additionally, these properties all use the asterisk (*) as wildcard character to denote any number of leading or trailing characters, depending on placement.
You can see in this example, all the alarms have 'Tank' in the Source Path.
Source Path Examples
|Retrieve alarm information from the alarm at precisely the specified path:|
Retrieves alarm information from any path that ends with
Retrieves alarm information from any source path starting with
Retrieves any alarm information that has
The Display Path is the Tag path that leads to the Name of the alarm which can be customized when you configure your alarm. In this example, ‘High Speed’ is the Name that was setup in the Alarm Configuration, and the Display Path is set to the Name you want the operator to see. The Alarm Status Table below is filtered by Display Path with a value of 'High Speed'.
Filtering in the Vision Client
In the Vision Client, the Alarm Status Table provides a host of built-in filtering options that are immediately available and easy to modify to help you get started. You can choose to filter on any of the filter properties by right clicking in the Alarm Status header and selecting any of the available properties.
You can even arrange the columns in any order you want by simply right clicking on the individual column header and dragging it to the right or left within the table. You can also sort in ascending or descending order by clicking in the column header.