Bridge Vitotronic Optolink adapter "Device 20C8 not defined"


i build my own as this manual optolink RP optolink adapter.
After that i installed vcontrold.

My first problem is, i can’t find after the last step in point 3 the file “vcontrold” in /usr/local/bin.

After i chanced in vcontrold.xml the device ID to device ID=“20C8” i got the Error massage “Device 20C8 nicht definiert” after i try to start vcontrold -n

How can i solve this error?

Now i changed the vito.xml file. After that i got the error : “could not open socket”.
Which kind of problem is it?

Can someone help me to configure the vito.xml file?