Hi All,
Got an issue where I have got two Fogstar battery banks, one is connected to ve-can 1 and the other is in ve-can 2. The issue is the cerbo is giving them both the same VRM instance numbers (512) which is messing up the info, you can see them both in the old UI but the new UI show them as some mixed up mess and node red only show the one the same as the new UI. Is this a bug in the software or do they need manually changing? If they need manually changing where do you do it?
Matt
My suggestion to you daisy chain the multible batteries correctly via canbus as per the fogstar manual with one connection to the Cerbo. Terminate the chain accordingly at both ends as required. Then both banks should show up as a single bank with a master, which allows the systems to function as they should, two batteries cannot control one system and the batteries can be charged properly and remain at the same level and in balance.
Daisy chaining does not work with the older batteries which need to be on different ports per Fogstsr documentation, the newer versions can be daisy chained.
On the Cerbo GX you can go into the VRM menu and change VRM instances. In the new UI it is Settings/VRM/VRM Device Instances. When you have changed an instance then you will need to reboot. Then you will need to check and edit your Node-RED for the new device instance as thebold one will be disconnected.
There will be 32 batteries so they have to be in two banks. I just need to have one of the banks on a different vrm instance number and all would be good
So a temporary fix is to ssh in and do a dbus spy, you can manually change the vrm instance number then both show up on the old ui and in node red, new ui it still can’t show both. It did take 12 hours for it to show all the fields in node red but it now works as I want. Be nice if victron could sort the bug.
Note: When you restart the cerbo it puts the instance number back to default so you need to remember that if it restarts.