question

mainframe avatar image
mainframe asked

Modbus ID 100 awarded serveral times

Hi, ist this normal, thats the id 100 ist multible times adressed?


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Or must i change the Adress of the mppt an Shunt?


LG Denis



Modbus TCP
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1 Answer
uio123 avatar image
uio123 answered ·

Hi there, I have just started looking at Modbus comms for Cerbo connected devices for a HMI project for one of my clients.

I would suggest that you should be OK with more than 1 device with ID:100 because the registers for each do not overlap.

  • com.victron.battery
    • Registers: 259 to 326
    • Registers: 1282 to 1301
  • com.victron.solarcharger
    • Registers: 771 to 791
    • Registers: 3700 to 3723
  • com.victron.system
    • Registers: 800 to 866

As per latest Modbus/TCP register list v2.70

Hope that helps and that my understanding of how the Cerbo works is correct!

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