Trends of Bacnet objects

[olegrz]

BACnet client app can only work with very limited amount of objects. How many objects did you link so far?

At this moment I mapped 13 bacnet objects only from Viessmann Vitogate. See attachment.
From Siemens PXC200 & PXC001 controllers I cannot map nothing.
Every time the mentioned above error is generated.
There are more than 300 bacnet objects in In Siemens controllers. In Vitogate their amount less than 100.