The cool thing about this product is that it has an rs485 modbus interface an industrial standard communication protocol which makes talking to an arduino.
Modbus energy meter arduino.
In that case the energy meter did not respond at all.
I have an arduino uno with rs485 module.
You don t have to care about the register address if you don t get any response.
Reading sdm72 sdm120 sdm220 sdm230 sdm630 modbus energy meters from arduino esp8266 esp32 avr reaper7 sdm energy meter.
If that s ok check the configured baudrate data bits stop bits parity etc.
Anything in this list is not ok in your setup.
Reading energy meter data through modbus using arduino.
Hello all im trying to read holding register data values of energy meter through arduino mega using rs485 to ttl converter from past 1 month but i havent suceeded.
Dds238 1 zn modbus energy meters from arduino esp8266 avr e nina dds238 energy meter.
And i have an problem with communication of this module with power meter inepro pro 1mod over modbus protocol i want for example read an l1 voltage value which i know from the manual page 24 25 that this value is stored in read holding register with adrress 5002 i should communicate with these paramaters.
In this video i give a quick overview of the eastron sdm120 energy meter show the main features setting up the device on modbus for slave id and baud an.
Please help me out in this regard.
I have made this connection.
Read voltage from eastron sdm230 modbus smart energy meter with modbus protocol.
Check the modbus id of the meter.