@gilshultz Can I ask you something about an old topic on connecting with MasterVolt/MasterBus?
I have a DC/DC-charger from MasterVolt (on a boat to convert 12v to 24v) and would very much like to be able to see data from that unit.
If you have more info could you please send it to me?
The charger came with the boat and everything else is from Victron. Data from that stuff is available easy, but I have no idea what is going on with the 24v bank behind the MasterVolt.
Ed
Hello,
I can not login in my arduino account, don’t know why.
Please send me an email address, then I send you what I have.
Mastervolt is a pain in the ass! I also have everything from Victron, only the Inverter was from Mastervolt. But, I changed it to a Victron Inverter.
Greetings,
Manfred
| edkok
March 13 |
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@gilshultz Can I ask you something about an old topic on connecting with MasterVolt/MasterBus?
MasterBus Mastervolt Combimaster Can Networking, Protocols, and Devices
Hi all there, Is someone out there who tried to connect to the can bus from Mastervolt? I have a inverter/charger combination, Type is CombiMaster. You can visualize and Control it via masterbus. Masterbus is based on can. I have developed an interface, most of it is already working. Only a few commands are not working. One command I need is to switch the charger part off. But until now I did not found out this command. Maybe someone can help me. If someone is interested, please send m…
I have a DC/DC-charger from MasterVolt (on a boat to convert 12v to 24v) and would very much like to be able to see data from that unit.
If you have more info could you please send it to me?
The charger came with the boat and everything else is from Victron. Data from that stuff is available easy, but I have no idea what is going on with the 24v bank behind the MasterVolt.
Ed
Changing it for Victron has also crossed my mind, but a boat is already enough of a money pit.
It appears like everything is working properly. As far as the commands I have never worked with this and have no idea of what they are the structure they are in.
Is the 24V bank batteries?
Not sure if this question is for me.
On my boat everything is 12 volt except for the bow-thruster, which is 24v. I have a Mastervolt Mac Plus 12/24-30A for charging the two batteries in series.
Because I have no clue about the state of this 24v bank I'm looking for a solution with an ESP32 connected to the can bus and sending metrics over wifi to a server running marine software (SignalK). I already have several esp's running for measuring temperatures, coolant flow and reading a SmartShunt.
I will take a SWAG and say the bottom battery ground is also chassis. The charger can be designed to charge each battery separately even though they are in series. Check the battery voltages and see what is happening. They should go to about 14V while charging. See if they always charge separately or together. That will give you the charger configuration.
The only way I can see is to monitor the bus and wait for a charger off. It is possible they are not designed to be shut off remotely.
I’ve no idea what you are trying to explain, suggest or discuss, sorry.
The MasterVolt Mac Plus I have is a dc/dc-charger; 12v in, 24v out. All I want is an ESP32 connected to the CAN bus and read metrics.
Suggestions for making the physical connection are very welcome. A simplified piece of code to start with is also very welcome.
At this point the best thing I can recommend is that you get and read the Arduino Cookbook.
Around hear they say a boat is a hole in the water that man pours money into.
Referring me to the Arduino Cookbook is a bit below the belt and unnecessary. I've written plenty of sketches although not being a programmer. And that is why I asked if anyone already has some boilerplate code to start with.
What are you on about with "the bottom battery ground is also chassis"? What "bottom battery"? I know how it is wired and I do understand how this DC/DC-charger is working, simple: 12 volt in 24 volt out.
You are right in saying: "monitor the bus". That is why I started this topic. But I need boilerplate code first. In the above mentioned topic you said you were working on it and get back with progress. Sadly the topic was closed before any replies. This was also the reason I tagged you in opening this topic in the hope you would help with what you created.
And again, I've no clue why you mentioned "wait for a charger off" and "shut off remotely".
These are not things I'm looking for or even need.
At least Libera send me some code, but that is so complicated and focussed on using a touch display it will not be easy to sift out the parts I need.