Modbus Rtu Energy Meter

This meter has seven digits the lcd display shows the active energy consumption.

Modbus rtu energy meter.

Energy meter with modbus connection the energy meter is used for production consumption or import export monitoring and for export limitation. Sdm120 single phase modbus rtu energy meter this flow shows how to set up eastron sdm120 single phase energy meter under node red. These two wires need to be connected to the 2 and 1 pins of x30 com port of simatic as described in below table. The meter has high accuracy readings and by a wide selection of current transformers 50a 1000a supports residential and commercial installations.

Transport the energy meter with modbus connection in its original packaging without exposing it to unnecessary shocks. There are a few fucntion nodes titled diagnostic message which is used for my diagnostic process. If the original package is no longer available use a similar box that can be closed fully. Store the meter in a dry place where ambient temperatures are 40 c 40 f to 60 c 140 f.

The modbus energy meter consist of two wires ve and ve. For this i am using node red contrib modbus for the serial modbus communication.