Is the CS fully compatible with the decoder 5211? Viessmann says so. However I cannot make the CS switch anything through the 5211...

Ok, probably my fault, but I have tried anything I can think of:

The "bottom" of 5211 connected to the CS digital current (I have tried the rail and directly into the CS)

The "top" of the 5211: "E" into the the red digital just beside it.(I have also tried an external trafo for the "E", and the trafo's "brown" to the rail)

I plug the red and the green cables to the magnet article, Viessmann signals, (tried several) into f.ex. the first (1) of the 4 pairs of output in the 5211.
I choose dip switch according to table: f.ex. 2,4,6,7 gives address: 49-52.
In the CS, I choose address 49, type of article (f.ex. Viessmann main signals- have tried to-way and three ways). I confirm.

I create the "schaltfläche", i.e. the image of the signal.

I try to shift the signal: the image I created change from "red" to "green" - but nothing happens to the signal.

What have I a done wrong? (Have tried with two 5211's)

I notice the the signal does switch if I pull the red or the green output plug manually out of the 5211 and in again! but only at the first pair ("1"), if I try the same manual trick at the other
pairs, 2, 3 and 4, no current there. (Not even if I change the 49address to 50, 51 or 52)

I must be missing something basical, but what? I am desperate [:(], sorry for the long question!

thanks for any advice , Søren

Would I be better off in buying k83's ? They can probably be used for the Viessmann signals as well, and finally I only bought two 5211's...?.) )