Settings

Grafana Panel Settings

The following Settings are available in the Grafana plugin:

• Panel Link Adress: This link is used to access the Device Status Page of the openPDC when the user clicks on any of the devices in the panel. The Device Status page provides additional information about the PMU and its connection status. For instance, if the PDC is running on a server 127.1.1.1 with the default port settings, then this link should be set to http://127.1.1.1:8280/

• Filter by Device: If this is enabled the Panel can be filtered by device name. Any devices not matching the filter are not shown in the panel. If this option is disabled the filtering is done by Device Groups as available in v.2.7 of the OpenHistorian.
• Device Name Filter: This filterexpression is used to filter the devices shown on the panel. If the expression is left blank all devices are shown. The expression is based on REGEX and is applied to the device names. For instance if only devices starting with GPA- should be shown the expression would be $GPA- . Note that it is possible to use Grafana Templating Variables in this Field.
• Use Regex: This option is only available if Filter by Device is not selected. If this option is enabled the Device Groups are filtered using a REGEX expressions similar to that in the Device Name Filter. If this option i sdisabled a list of available deviceGroups is displayed to select from.

openPDC adapter Settings

In addition to the Grafana panel there is a number of settings in the openPDC Action Adapter that has to run on the associated openPDC to ensure the panel works. The relevant adapter settings are:

• Target Parent Devices: Defines the flag that determines if alarm states should only target parent devices, i.e., PDCs and direct connect PMUs, or all devices.
• AcknowledgedTransitionHysteresisDelay: Defines the delay time, in minutes, before transitioning the Acknowledged state back to Good.
• AlarmMinutes: Defines the time, in minutes, for which to change the device state to alarm when no data is received.

These settings are adjusted in the connection string of the Device Alarm State action adapter.