Hello Udo,
thanks for the suggestion - I had not tried this option, did it now, but with the same result.
I changed my .things file to:
Type number-control : Heat_OG_Bad_IST_Temp "Bad IST Temp" [ ga="9.001:<4/3/20" ]
Type switch : Switch_Heat_Bad_Sperre "Bad Sperre Stellmotor" [ ga="1.003:<4/0/0" ]
Type number-control : Heat_OG_Bad_Stellwert "Bad Stellmotor" [ ga="5.001:<4/3/21" ]
Type number-control : Heat_OG_Bad_SOLL_Temp "Bad SOLL Temp" [ ga="9.001:4/3/22+<4/3/23" ]
Type switch : Switch_Heat_Bad_Betriebsart_Komfort "Bad Betriebsart Komfort" [ ga="1.003:4/0/4" ]
Type string : Heat_OG_Bad_Diagnose "OG Diagnose Bad" [ ga="16.000:<4/0/21" ]
But if I understood the control items right, this would not really be the right way to use a control item - or did I missunderstand the logic?
thanks
Andreas