How can I define or intercept custom interrogation group handling (GROUP_1, GROUP_2, etc.) on the server side using this library?

[digikv]

• Is there a hook or callback on Server or elsewhere for custom QOI handling?
• If not, is manual emission of interrogation response required? Any recommended pattern?
  Thanks in advance — really appreciate your work on this library! 🙏

[m-unkel]

Hi,

Thanks a lot for your kind words and for raising this question!

Currently, there is no hook or callback available on the server side for custom QOI (Qualifier of Interrogation) handling. The server implementation will automatically respond with all available (Single, Double, Step, Measurement and Binary) points when receiving an interrogation with c104.Qoi.STATION. For any other QOI value, it will respond with a negative confirmation (i.e., error response).

As a result:

No custom callback is triggered for QOI handling.

Manual emission of interrogation responses is not required for Qoi.STATION, and not supported for other QOI types at this point.

On the client side, however, you are free to initiate interrogation with any of the supported QOI values.

We agree that more granular handling of QOI could be useful in certain scenarios, and we’ve added this to our backlog for potential inclusion in a future version.

Best,
Martin

[digikv]

Thank you Martin.