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Hi @deichel Ensure the correct role for the meter has been selected in the Energy Meter section of the remote console. The 3 phase ET340 will be for use with ESS as the EM is a monitoring only device. Someone else may be able to confirm if your SolarEdge unit will work as opposed to the ET340, but I do not believe it is approved for ESS functionality.

Hello Dirk,

I'm building a similar setup as you with similar components. I also have a Venus GX connected to my SolarEdge SE10K and this solar inverter is connected to the SolarEdge Modbus Meter. To see the Grid consumption in VRM environment I added EM24 meter which is connected to the Venus GX. So far as I know it's not possible to get grid consumption values from the SolarEdge modbus meter to the Venus GX.

Understood, I already ordered an EM24 to monitor In & Out from / to the grid.

Thanks for your help!

Dirk

Ich baue auch ein ähnliches System. Ich habe aber einen SolarEdge 5000 HD Wave mit LG 10H Akku. Ich werde das System mit Victron Multiplus II GX- und Pylontech-Batterien erweitern.
Wie ich hier verstanden habe, wird ein weiterer Verbrauchszähler aus der Verteilung benötigt. Ich habe eine EM 340 für meine Zwecke, aber leider wird sie nicht unterstützt. Eine andere Sache ist, dass die RS 485-Kabellänge bis zu 100 Meter beträgt. Leider kann der USB-Konverter nur 5 Meter verarbeiten. Ich muss den WLAN-Konverter anschließen. Sonstige Aufwendungen ...
In der Venus GX-Konfiguration ist SolarEdge für die Konfiguration von RS 485-1 vorgesehen. SolarEdge HD misst den Verbrauch und kommuniziert mit dem Akku. Ich hoffe, es macht Ihnen nichts aus, RS 485-2 zu verwenden.
Ich möchte sowohl LG- als auch Pylontech-Akkus messen. Pylontech wird wahrscheinlich in Ordnung sein, aber ich weiß nicht, ob der Akku des BMV 700 H LG mit einer Spannung von bis zu 385 V und einer Reichweite von 350-450 V zurechtkommt.

Hi !

Thanks @ejrossouw.

I think it is good to clarify what the rootcause of the misunderstanding was.

I thought that supporting the SE7K means that the GX can read the data from the SolarEdge (RS485) energy meter.

That is wrong assumtion by myside.

Correct is that if you enable Modbus TCP on the SE7K you can read the data from the SE Energy Meter on TCP Port 502 (on newer devices the default is 1502) and read from the SE7k (not the Energy Meter!) the production of the SE7K on Port 126.

Due to that fact it is mandatory to add an additional EM24 to the system to have the full picture.

Hope that helps the other users.

It is also good to know that the SE7K is holding the connection for 2 minutes and is supporting only one concurrent TCT connection. In other words if device A is "talking" to the SE7K it is impossible for another device to talk with the SE7K at least for 2 minutes.

Regards,

Dirk

Hi all, interesting topic because I'm planning to extend my 2 SE inverters (connected with SE Smart Metering device) to a Victron ESS with 3 (phase) multiplus-ii units.

The point is that Victron uses modbus-TCP rather than the RS485 bus. The RS485 bus holds all the information that is needed. The SE Metering device (acting as a slave) communicates with one of the SE master inverters. The other inverter is also running in slave mode. So by connecting to RS485, the GX device should be able to read out all required information, instead by using it's own device. This should be on our wish-list!

Imagine people who have also smart EV loading, like Zappi. You would have to fit 3 CT's per phase inside your distribution panel. That's impossible! This is why we have an industry standard called RS485! It's old but reliable. Hopefully Victron has plans to implement this?