Hi @addalaabderrahim, if you mean that your Modbus address is 62800, which you use to receive voltage information, then the address for reading voltage will not change. Each Modbus address corresponds to a specific parameter when read, and the data size (whether it’s 1 byte or 2 bytes) depends on the documentation’s mapping of addresses and their respective parameters. I recommend reviewing the documentation to understand the expected data format for each address. Personally, I follow the sequence of addresses to interpret the data received from Modbus. Hope this may help you, best wishes!