Monitoring and notifying of "bad status" tag values in TopView
Monitored data points can often have a "bad status", which is an indication that the value of a tag in TopView may not be reliable.
You may want to detect bad statuses in TopView and notify people when they are present.
- Do not "OR" the bad status condition ("?") with another alarm condition. OR'd alarm conditions require mutually exclusive conditions to ensure alarm states transitions are consistent.
- If you do not want alarms when a tag has a bad status value, use the "Check for Good Status" option in the tag's Alarm Limits and Notifications settings to prevent alarms from occurring when a status is bad.
Here are two options for detecting bad statuses in TopView:
- Detect individual bad statuses:
- Create a row for the tag and set the alarm condition to "?" (bad status).
- You can then configure tag group, or individual tag, notifications for this alarm.
- This will allow detection of individual bad status alarms and allow your notification to specify the exact tag with issues.
- Detect bad statuses in aggregate:
- Monitor "bad status" in the aggregate by adding the TopView Status Tag "statusnotgood_count" to your configuration, which returns the number of tags with bad status values in the current configuration.
- You can alarm when this count is non-zero and configure notifications for this alarm. This setup allows you to monitor bad status issues using fewer tags and a simpler configuration, but may not provide exact information about which tag has a bad status in the notification.
- To determine which rows are in bad status, use a TopView client like Remote Viewer, or go to Values View in TopView Admin Tools overview page for the configuration.
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