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Hi seniors,
is it possible to include an UZB1 stick as Static Update Controller (SUC), is this mode supported by UZB1 hardware?

Thanks
Achim

Sure, it is. You primary should assign SUC role to UZB1

Hmmm,
I've tried to enable it in OpenZWave options.xml file by adding
<Option name="EnableSIS" value="true" />

Which result for a UZB1 in a OZW_Log:
Received reply to GET_SUC_NODE_ID.  Node ID = 0
Controller Does not Support SUC - Cannot Setup Controller as SUC Node

It does not support EnableSUC, since it is on by default (according to Z-Wave Plus specs). It can become SIS with no problems. Please check it with OZW support. With Z-Way s/w it works in SUC and SIS mode.

OK, so it looks like the OZW ordinary (non Plus) handling of UZB1 is the problem, see my other topic https://forum.z-wave.me/viewtopic.php?f=3419&t=24704