I am trying to figure out Node-RED and if I am able to do what I would like to with it.
I want to have a pair of SPST switches connected to the Digital I/O of my Cerbo GX.
Digital I/O 1: when the switch is on (closed) I want the maximum charge voltage under DVCC charge control to be 26.2, and when off (open) I want it to be 28.4
Digital I/O 2: when the switch is on (closed) I want the maximum charge current under DVCC control to be 50A and when its off (open) I want it to be 150A.
From what I’ve experience so far this will cap the voltage and/or current of all my chargers (all are DVCC) when I want to be in storage mode or normal mode.
I feel like this is possible, but I’ve never used anything like Node-RED before and would appreciate any help.
So I have been playing with Node-RED and have setup a digital switch for current and voltage changes to DVCC. It seems to be working correctly in trial by inverting the switches in settings for open and closed. I am using door alarm since it’s outputs are open/closed.
My plan is to connect a SPST switch to Digital I/O 1 and 2 and then it should work as intended. Does that sound right?
I am not sure, if you are asking a question, or what information you are looking for.
If you alter DVCC settings (as you do), this affects all chargers. Is this what you want, or do you only want to alter certain chargers within the DVCC system?
I as an example am trying to alter only the chargers within a Multiplus2 (those who use grid power), and don’t want to alter all other DVCC related chargers (MPPT/PV), as they shall charge “free” as long as battery BMS/DVCC allows. I could not yet find a way to do so… But it somehow sounds like you have a different goal…?
