Configuration of reading EL-meter by DSMR using P1-USB cable


I have a Landis Gyr E360 EL Meter home and I bought the P1 USB cable specific for this E360 meter.
I connected the cable on the P1 interface and the USB to RaspPi 4
The USB is discovered as ttyUSB2 and seems ok.
I added the DSML slimme meter integration in home assistant, and selected the ttyUSB2 insterface
All seems good, the device with 16 entities where added

But, all the entities keeps having the value Unknown.

What am I missing?


Any help from anyone? No one is using DSMR integration that can give small help?