I still have a new problem:
In cause of any troubles a working configuration between rfxmng and one of my three rollershutters doesn’t work anymore.
This one shutter won’t react…
Have I to erase anything, or shall I use an other ID???
Sorry for my bad english 
I havn’t got it till yet… 
One explanation: The one roller shutter that does not work, worked before…
Please have indulgence with me and give me a tip.