Because I removed my old setup, there was no way back. So the denkovi modules needed to work.
So after setting up the modules in domoticz and then connecting everything to the in and outputs, i noticed the first problems.

When I created a blocky to switch an output to 1 when a input became, there was a delay of 50 seconds!

I posted a question about my problem on the forum of domoticz and got the advice to install the latest beta.
This made the delay go from to 50seconds to 5 seconds. 10 times better, but still not acceptable.
So I started emailing to denkovi about this problem.
They didn’t have a solution. They adviced to wait for updates and in the meantime use the denkovi software and switch the outputs with the “remote relay function”.

This solved the problem, but off course now i was not switching my lights with domoticz.
So I could do only little automation.
you can find info about this problem on the domoticz forum