Hi all,
I'm trying access the data from Victron Cerbo GX - Quattro setup using Modbus TCP for the data points mentioned below (CCGX-Modbus-TCP-register-list-2.90).
We tried unit ID 227, 100. but no success
extra info:
Cerbo GX and Quattro Firmware is up to date (1/feb/23).
I'm I using the wrong UNIT ID? do i need to do anything extra to access those data points (3130,3132,3134,3136) ?
Thanks :)
Hi,
Have you followed the instructions in the 'Unit ID mapping' sheet in the spreadsheet - "On the CCGX go to the device list and open the device of interest, then open the Device subsection ... " (or use Remote Console if no CC).
(you no doubt already know this) If you're using python ModbusTCP and a simple Python IDE, like Thonny, it's no problem when using read_holding_registers to just try Unit ID/ register combos and just see what works.
This might be of no significance but the 2.90 register list I'm seeing has the entries you quoted on lines 367-370 (not 347-350)
thanks @Johnone for the response
" Have you followed the instructions in the 'Unit ID mapping' sheet in the spreadsheet - "On the CCGX go to the device list and open the device of interest, then open the Device subsection ... " (or use Remote Console if no CC). "
yes, we tried it (unit id:227) , no success
"(you no doubt already know this) If you're using python ModbusTCP and a simple Python IDE, like Thonny, it's no problem when using read_holding_registers to just try Unit ID/ register combos and just see what works."
Yes, we tried all the possible unit IDs(1-300) , no success
Our end goal is to display victron VRM energy consumption visualization (as shown below) into a third party SCADA dashboard. Its a victron Quattro-cerbo GX system.
I'm trying to work my way around all this stuff too. Although pymodbusTCP is my preferred first choice, I wonder if there are better ways of getting to the dbus data - documentation for modbus looks 'not finished yet'. I'm using dbus-mqtt but it does have a quirky keep-alive setup. Node red looks to have more access to dbus than modbus - e.g. https://community.victronenergy.com/questions/176102/scheduled-charging-and-node-red.html
Maybe it's best to look at dbus and then work out appropriate protocols for talking to it - sorry I can't be of more help.
https://github.com/victronenergy/venus/wiki/dbus
EDIT: just had a quick look at command line access to cerbogx - definitely the way to go. e.g. try dbus -y com.victronenergy.settings
@Johnone ,
https://github.com/victronenergy/venus/wiki/dbus
The link you shared gave me a hint that "com.vitronenergy.inverter" can be used only for VE.direct inverters & Inverter RS. Not in my normal quattro inverter.
I have to stick with "com.vitronenergy.vebus"
I will give it a try using dbus or API.
cheers
