Unstable connection with WinCC Unified at low polling rates (>1s)

[agglazko]

Good afternoon!

Thank you for your excellent library, which I am actively using in my IoT projects.

When integrating with the WinCC Unified v21 SCADA system, I encountered the following issue. If the polling interval for registers exceeds 1 second (i.e., an interval longer than 1000 ms), brief connection drops begin to occur. However, with an interval of 500 ms or less, the connection remains stable and works flawlessly.
The issue might be related to WinCC Unified, but I would like to check if you have encountered similar behavior before.

[yaacov]

Thank you for you issue, I did not see it, if you find out what the issue is, scada or lib, please comment here, if it can be fixed on this lib side, and you find out how we can fix it, please comment with details