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semlohnhoj avatar image
semlohnhoj asked

Feature Request: Write access to Multi RS Solar ESS Settings

I would like to request the ability to control the following via NodeRed/Modbus for the Multi RS Solar:


1) ESS Mode (Optimized with batterylife, Optimized without battery life, Keep batteries charged)

2) ESS Minimum discharge SOC


Both would be useful but either would do.


Charging batteries during cheap times is possible but requires fudges to make it work. I can use Generator rules to turn on the input relays at night and also if I have a large load. The downside is I end up charging the batteries during the day if I have a large load.

I currently have to use a Windows PC to automate clicking buttons in the VictronConnect App to set the ESS Mode!


Don't know if there is a formal method for asking for features but please accept this as one :)


Please Help.......

ESSNode-REDModbus TCPMulti RSmodifications
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Alex Pescaru avatar image Alex Pescaru commented ·

Hi @Semlohnhoj

A little bit late, but now I managed to find out more about system.

If you have access to the CAN network, you can configure these options of the Multi RS over CAN.

I know, it's not NodeRed or ModBus, but at least is configurable from outside.

So if you have an Ethernet (or anything else) to CAN adapter you can use the Multi RS's config VE registers to adjust almost anything.

Alex

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semlohnhoj avatar image semlohnhoj Alex Pescaru commented ·
My word that's interesting :)


Is that only if you aren't using a GX device to control the RS? or can you do both at the same time? More detail would be good.

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3 Answers
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Hi John,

This will come eventually. For now ESS is still not even officially supported on the Multi RS due to it lacking grid code control.

The RS engineering team is focused on parallel and 3 phase support right now.

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semlohnhoj avatar image
semlohnhoj answered ·

Hi @Guy Stewart (Victron Community Manager),


Is there somewhere I need to post this to request the feature?


Desperately want this as a feature.


Cheers,


John

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semlohnhoj avatar image
semlohnhoj answered ·

Parallel support would be really useful, good to know that the product is being actively developed.


Is ESS/Grid code still being developed and will all of these be possible with the existing hardware?


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