Fronius wrong PV Current

I am using Fronius Symo Inverter Binding:
DC Power (fronius:powerinverter:a3216fb374:6c1a167a06:inverterdatachannelpdc) shows to high value as the web interface from the inverter, or the following web request (value PAC):

there are 500W to much on the binding, as in web request!
how ist that possible? from which json object is the PAC value read?

ok, found out, that there is Power Flow with the right DC Power. what’s the difference between DC Power channel and Power Flow Inverter1 ? Seems the Power Flow Inverter 1 is the right one!