UPDATE:
The problem is now solved.
There was a need for a remote-fix/update from the supplier, so basically the RapidScada setup was good.
The device(s) needed “parsing fix for the request”.
Catching the moment when the Update was done…and started to receive data:
https://i.postimg.cc/1tnb5NDS/update.jpg
Thanks again for the support guys! I appreciated every help and comment!
Gabor