Step 3.3. Review Runtime Statistics in the OPC Alarm and Event Server Window
The OPC Alarm and Event Server window displays statistics to inform you of client/source projects alarm activity.
| Statistic | Describes Number of: |
|---|---|
| Sample Period (ms) | Milliseconds the server takes to collect data. At the end of the period, the data is displayed in the Client Alarm Viewers. |
| Num Event Server Objects | Internal events and alarms currently supported by the server. |
| Num Subscriptions | Clients that are running and being sent data from the server. |
| Num Browser Objects | Clients browsing for information. Note: CIMPLICITY OPC Alarm and Event Server supports clients with browsing functionality. |
| Num Events Generated | Changes of states; changes include alarms being activated and alarms acknowledged. |
| Num Client Notifications | Number of server to client notifications. |
| Num Events Last Sample Period | Events the server collected during the specified sample period. Example The server collected 19 events during the last 1000 milliseconds, the length specified for the server's sample period. |