Dala claimed: I now Have got a loaner BYD battery which i will get started reverse engineering! Video clip collection is obtainable right here:
I'll current my Do it yourself CAN BMS emulator task , I work from some time to create this interface for integration of Do it yourself battery with distinctive models of invertors with supported CAN or RS485 communication.
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Now i am pretty new to CAN. I don't absolutely comprehend the protocol, and despite of Mastering and looking through tons
I did notice reduction of discharge Restrict existing since the pack SOC dropped, but i did not notice these limitations tapering considerable as restricting lower cell voltage worth approached my prescribed decrease limit value of two.8V. The BMS needed to open up the contactor to save the lowest mobile, so Potentially more than the SOC is miscast in the translation from .dbc to .o2bms string.
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In battery backup manner the inverter can supply electricity up to its output limit or even the output Restrict of your linked battery, whichever is definitely the reduce.
Not numerous yet I don't Consider. I am aware my regional installer has installed a person for a neighborhood organization but I do not know the business. Installation hasn't absent fully easy Using the supported battery but I think they worked it out.
I _thought_ (although I might be Incorrect) that the HV Solis inverters use some proprietary comms With all the battery BMS which means that developing a DIY battery system for them is both tough or unattainable.
Do you discover that the Goodwe inverter application(SolarGo) demonstrates max cost, and max discharge current as 125% of what you send eg:
The CAN specs: I at last got the BMS to communicate with the inverter. By means of trial and mistake, I figured out that there is a slight misinformation inside the CAN specs supplied by Richard (attachment in the 1st write-up of the thread), or maybe it really is improperly written within the document. The document states that any message despatched via the BMS ought to have its ID (prolonged structure) made up of a four-digit prefix + one-digit suffix (i.
I do note that the scale worth for that SOC information is 0.5 inside the .dbc. Do these messages even benefit from the size values through broadcast or is that information just for human readability? I am even now on the lookout for the elusive "aspect of two".
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