Hello. After a year of subscription to the Standard Plan (On-Premise), is it possible to downgrade the plan to Basic Plan (Mendix Cloud) for succeeding years? And with Basic plan, is it possible to collect data from WinCC using the OPC-UA Connector of Mendix?
For this particular question, I'd definitely contact your mendix success manager. I'm sure they'd be able to tell you if it's possible and when (and possibly even check if it's possible to do it before your contract date ends).