A pirate walks into a bar with a steering wheel on his pants.
The bartender says, “Hey, you’ve got a steering wheel on your pants.”
The pirate says, “Arrrr, I know. It’s driving me nuts.”
So does the Modbus readout. I think I am doing it right, but the register is empty? I have a E3DC branded Wallbox, really a Wallbe. The Webinterface of the wallbox shows:
I am looking at Active Power (W), Modbus Address 140. I have this configuration:
- name: wallbe
type: tcp
host: wallbox.eulie.de
port: 502
sensors:
- name: Wallbox Watts
address: 140
data_type: float32
unit_of_measurement: W
device_class: power
But the readout is zero. I can see traffic to the wallbox and tcpdump shows it answers, modbus register is empty tho. If I switch 140 to a random 320 the value changes to a constant 255. Which is something. I am whacking at this for days now. It’s either super complicated and my approach is too small or this is reaily solved.
Ideas? 
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