Victron ESS - Reading the Maximum System Grid Feed In via MODBUS regsiter 2706?

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Hello ,

I expected that the “Maximum Feed in” setting from the remote console can be read (and written) via Modbus by using the address 2706?

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I created the following simple sensor on my home assistant

  name: 'Maximum System Grid Feed In'
  unit_of_measurement: "W"
  data_type: uint16
  slave: 100 
  address: 2706
  scale: 0.01
  device_class: power

but unfortunately the sensor reading is always zero?

Is there any prerequisite to be able to read the currently set grid feed-in power limit?
I checked also the sensor with data_type: int16 - again the reading is zero

Is there any other way to read the current value of the “Maximum Feed in” setting?

Most of the other sensors return the correct values