I am new to the forum and also completely inexperienced with Node red. But I hope to learn quickly.
My goal is to provide the electric power values to the inverter - the inverter is the Modbus master - Node Red should be the slave:
Data from KNX Power Meter => KNX Node Red => Node Red Modbus Client with USB adapter (PI) <= Hybrid Inverter
Does anyone happen to have such a solution, or can go with tips.
Many many thanks already
Just to let you know - I have moved your question away from Core Development - as its not about the core/internals of Node RED.
I don't use any modbus / KNX stuff, but plenty here who do.
Are you sure? Normally that would be the other way round, with node red accessing registers on the device.
If you do want node-red to be a modbus server, however, node-red-contrib-modbus has a server node, though I have never used it.
The Inverter is the master and asking the Power Meter in this case. So Node Red must play the Slave role
For Node Red, Server = Slave - right?
Yes. Let us know whether the server node does what you need.