Siemens Logo - how to read remaining time from switch-off delay

Dear HA friends,

I`m currently trying hard to read the remaining time from a switch-off delay.

  • Modbus is running well
  • actions like reading analog values, switches, etc. are working well
  • I want to read the current value from B104

My configuration.yaml file just for this is:

    sensors: 
# Test Restzeit Ost #
      - name: Abfrage_Restzeit_Ost
        unique_id: "Abfrage_Restzeit_Ost"
        data_type: custom
        structure: ">L"
        address: 0
        count: 2
        input_type: holding
        scan_interval: 10
        unit_of_measurement: min
        device_class: duration

The value which is shown is really strange and doesn`t seem to be right:

Does anyone has an idea what I`m doing wrong?
I appreciate any kind of help.

Thank you in advance.