Anybody played with elfin ew11 modbus rtu to wifi/rj45 converter in nodered through its mqtt protocol ?
I am looking for a function create the right packages for it read/write holding registers, and decode the response back to integer values.
thanks
You can try with node-red-contrib-modbus (node) - Node-RED (nodered.org)
I can't put my EW11 work with this, but I triying.
My NR reads the data from the energy meter and inverter with EE11 and sends it to MQTT.
I have no need to write.
Care to share frank?
I am trying to read data without opening any ports from external network with ew11. This is why im thinking mqtt as a middle hub.
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