There are a few fucntion nodes titled diagnostic message which is used for my diagnostic process.
Modbus rtu energy meter.
The modbus energy meter consist of two wires ve and ve.
A wide variety of modbus rtu energy meter options are available to you such as single phase three phase.
For this i am using node red contrib modbus for the serial modbus communication.
If the original package is no longer available use a similar box that can be closed fully.
The meter also has far infrared and rs485 communication modules in it allowing communication with many amr systems and pulse readers.
Energy meter with modbus connection the energy meter is used for production consumption or import export monitoring and for export limitation.
The meter has high accuracy readings and by a wide selection of current transformers 50a 1000a supports residential and commercial installations.
This meter has seven digits the lcd display shows the active energy consumption.
Pins description of x30 com port configured as rs485 output pin diagram of x30 com port.
These two wires need to be connected to the 2 and 1 pins of x30 com port of simatic as described in below table.