PI Buffer Subsystem point ownership

Once PI Buffer Subsystem registers with a Data Archive server and starts sending snapshot values for a PI point, only PI Buffer Subsystem can write snapshot values (either new values or edits) for that point. In other words, PI Buffer Subsystem "owns" the point in the snapshot. Point ownership is used to maintain consistent compression.

When PI Buffer Subsystem is unable to accept a data value, PI SDK or AF SDK may attempt to write the value directly. In a case like this, Data Archive rejects the write attempt because only PI Buffer Subsystem can write to the point.

If this happens, you may see error messages that include this PI error code: [-11414] Buffered point does not accept new events.

To resolve this problem, you need to identify and fix any problems that are preventing PI Buffer Subsystem from receiving or sending data. This allows PI SDK and AF SDK to send data using PI Buffer Subsystem instead of sending it directly to the server.