Control other devices with soc gets low

DIY
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1

Hi, I have a load of computers and what not on a multiplus system with a large battery bank. I want to be able to shut the computers down safely if the system soc gets low. Has anyone done this? I guess using the cerbo/Venus os modbus or mqtt out is the way to go but just wondering if there is a better way?

I guess writing a python script or similar on the windows machines that continuously polls the cerbo would work, but whats the easiest way of getting values out of the cerbo? Preferably without using the vrm and just on the same network

2

Easiest way is to have a small python script on each computer polling the Cerbo’s Modbus map (you need to enable this in the cerbo). You can either go for low SOC, Low battery voltage OR both.
Soc is register 266, battery voltage is 259.
look for CCGX Modbus TCP register lis in Victron Downlads technical docs.