Modbus Address Mapping

Structure of Address Mapping

{"mapping_value_1":[ <slave_number><address_key>, <slave_number><address_key>, .....],"mapping_value_2":[ <slave_number><address_key>, <slave_number><address_key>, ......], ......}

Example

Data of Slave 1

{"slave_id":1,"function_code":3,"D101":240.5,"D103":241.5,"D105":123.5,"D107":345.6}}

Data of Slave 2

{"slave_id":2,"function_code":3,"D100":123,"D101":124,"D102":125,"D103":134,"D104":135,"D105":136}

If we have to change D101 address of slave 1 and slave 2 to voltage & D103 address of slave 1 to current then the address mapping JSON will be as follows

{"voltage":[1D101,2D101],"current":[1D103]}