Thanx for the quick response! 
I think the device is set up correctly with the “communication - P1 Wifi Gateway” device. When I acces my esp device like you described I will receive the following diagram:
1-3:0.2.8(50)
0-0:1.0.0(220124200030W)
0-0:96.1.1(4530303639303030373133323531313230)
1-0:1.8.1(001107.475kWh)
1-0:1.8.2(001515.428kWh)
1-0:2.8.1(000012.820kWh)
1-0:2.8.2(000056.492kWh)
0-0:96.14.0(0002)
1-0:1.7.0(00.494kW)
1-0:2.7.0(00.000kW)
0-0:96.7.21(00054)
0-0:96.7.9(00057)
1-0:99.97.0(10)(0-0:96.7.19)(220111053513W)(0004295340s)(220111053513W)(0004295339s)(220111053512W)(0004295339s)(211217090318W)(0002147824s)(211217090317W)(0002147824s)(211217090317W)(0002147824s)(211122123124W)(0000000311s)(211122123124W)(0000000310s)(211122123123W)(0000000310s)(211122122606W)(0000000676s)
1-0:32.32.0(00011)
1-0:52.32.0(00017)
1-0:72.32.0(00015)
1-0:32.36.0(00018)
1-0:52.36.0(00016)
1-0:72.36.0(00019)
0-0:96.13.0()
1-0:32.7.0(230.0V)
1-0:52.7.0(228.0V)
1-0:72.7.0(231.0V)
1-0:31.7.0(001A)
1-0:51.7.0(000A)
1-0:71.7.0(000A)
1-0:21.7.0(00.253kW)
1-0:41.7.0(00.081kW)
1-0:61.7.0(00.160kW)
1-0:22.7.0(00.000kW)
1-0:42.7.0(00.000kW)
1-0:62.7.0(00.000kW)
0-1:24.1.0(003)
0-1:96.1.0(4730303539303033393230353130323139)
0-1:24.2.1(220124200000W)(04250.818*m3)
!2836
/CTA5ZIV-METER
In the marked rule, I see the information of my gas meter correctly. Also the energy rules are classified into groups of three. That should be L1, L2 and L3. Is it possible to show and add these information in the app?
Currently the app shows this:
Diagnostic report: 76a13370-bb1d-4756-bcc0-768ed5c70066
