Connector health points
- Last UpdatedMay 02, 2026
- 3 minute read
- PI System
- PI System Connector 3 3.0
- Connectors
The following health points are installed and updated when the AVEVA PI System Connector 3 (PSC3) is running. These counters cover connectivity status, replication metrics, history recovery progress, and caching state.
General
|
Health Point |
Description |
|---|---|
|
Heart Beat |
A liveness indicator that increments by 1 every 5 seconds, cycling from 0 to 15 and then resetting. A steadily incrementing value confirms the service is running and responsive. |
|
Incoming Device Status |
Indicates the connector's link to the source PI System. A value of 305 (Good) indicates that the connection is established and healthy. A value of 307 (Bad) indicates that the connection is lost and unavailable. When service is stopped, the counter is set to 307 (Disconnected). These values match the entries in the SYSTEM Digital State Set. |
|
Outgoing Device Status |
Indicates the connector's link to the destination, which can be either a PI Server (in direct-connect mode) or a Broker. A value of 305 (Good) indicates that the connection is established and healthy. A value of 307 (Bad) indicates that the connection is lost and unavailable. When service is stopped, the counter is set to 307 (Disconnected). |
|
Error Count |
A running count of errors encountered since the service was last started. This counter resets to 0 on service restart. |
Replication Metrics
|
Health Point |
Description |
|---|---|
|
Asset Count |
The total amount of AF Elements that the connector has replicated over its lifetime (since the most recent restart). |
|
Point Count |
The total amount of PI Points that the connector has duplicated throughout its entire operation (since the most recent restart). |
|
Event Frame Count |
The total amount of Event Frames that the connector has duplicated throughout its entire operation (since the most recent restart). |
|
AF Object Count |
The total amount of all AF objects that the connector has duplicated throughout its entire operation (since the most recent restart). |
|
Estimated Archived Event Rate |
The rate of archived (historical) events being processed, reported in events per update interval. This value resets after each update interval. |
|
Estimated Snapshot Event Rate |
The rate of snapshot (real-time) events being processed, reported in events per update interval. This value resets after each update interval. |
History Recovery
These counters provide detailed progress information when the connector is performing a history recovery (backfill) operation.
|
Health Point |
Description |
|---|---|
|
History Recovery Status |
The current state of history recovery. Possible values include: 1 = Started |
|
Elapsed HR Time |
The total elapsed time, in seconds, that history recovery has been running during the current session. |
|
Points Completed |
The number of PI Points that have completed history recovery out of the total points undergoing recovery. |
|
Pass Completed |
A percentage (0–100) representing the progress of the current data pass during history recovery. This value resets when a new pass begins. |
|
Pass Count |
The total number of data passes completed during the current run of history recovery. This counter continues to increment and only resets upon service restart. |
|
Average Event Rate |
The average rate of event data transfer during history recovery, reported in events per second. |
|
Time Span Completed |
History recovery time-range progress, reported in hours. |
|
History Recovery Estimated Time |
The estimated remaining time, in seconds, until history recovery completes. |
Caching
|
Health Point |
Description |
|---|---|
|
Caching Status |
Indicates if the connector is currently saving data to disk because of a loss of connection. (0 = Not Saving, 1 = Saving) |
|
Cache File Count |
The total number of cache files on disk that are pending processing by the Connector. |