question

Robinson Crusoe avatar image
Robinson Crusoe asked

Multi RS Solar - control from extern

Hello,

I hava a Multi RS Solar, with a BIY 48V Batterie (20kWh).

I want to use the "Multi RS Solar" only a as charger/discharger for the battery. Goal: Zero feed to Grid and later combined w/ stock market prize (to feed it at high rates).



So far I'm struggling on how to control the device. I set up VenusOS on a RPi (w/ CAN Hat), running fine so far, Multi RS is detected. But it seems linke ESS is not implemented for the Multi RS Solar.


Has anyone an Idea how to tell the setup to charge and set limit power/current?

Is there an way via Modbus or BMS CAN interface?

ESSModbus TCPVE.Cancharge controller compatibility
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nickdb avatar image
nickdb answered ·

ESS is not supported

The Multi RS does not yet support grid codes, and therefore does not yet support ESS installations. It is not yet known if the current hardware revision will be able to support grid codes, or ESS, via a firmware update in the future.


It should function fine for your purposes because it can't feed back.

You just have limited control via the victron connect app.

You can pull/set some data as there are nodes for the RS in node red.

But I suggest you read the docs carefully, they are clear about the limitations and there are many posts here to be referenced on the topic.

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Related Resources

Additional resources still need to be added for this topic

Modbus TCP Basics

What is ESS training video

ESS Quick Installation Guide

ESS design and installation manual