Hi all,
I've got an Solis PV Inverter which is normaly connected by Modbus to an Acrel Acr10r Energymeter. I can't use the Acrel Meter for some reason. I've got a Finder Energymeter installed. The Finder Energymeter can measure the equivalent values, but they are stored in different registers and different formats.
I can readout all necessary values of the FinderMeter by Modbus in Node-Red. That's ok. But I'm stucking now how I can supply the new values to the inverter. I know what the Inverter is asking for (register+data). But I can't see how to build it in node-red.
Normaly the Solis Inverter asks ID=1 for a bunch of registers, but how to serve them in Node-Red I could not find a kind of "Slave" Node. I'm working with the "node-red-contrib-modbus" Nodes
I'm currently facing the same issue. Essentially, I'm looking to configure an energy meter of one type to function as a Modbus RTU slave for another device. Unfortunately, I'm unsure of how to set it up as a slave.
Fortunately, there are plenty of knowledgeable individuals on the forum who have likely tackled this problem numerous times.
The contrib-modbus package includes a modbus-server node which, according to the documentation, looks as if it should do what you want. I have not used it myself though.
Hi,
thank you, I think I got the principal of the slave function:
You need to place a Modbus-Server-Node. It looks like it just should be here and be configured for IP Adress and so on (not much input/ output).
Then you need to write the values into the registers of the Modbus-Sverver-Node with the FlexWriter Node. But they are not connected with wires like I would have sugested, Its like writing to any other Modbus item.
Now the Modbus-Server-Node is replying the bevore seted values if asked for with FlexGetter for example.
I will try to build this up and give an other reply.
