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SunnyWolf / goldenmotor_protocol

This repository contains infornation about data exchange protocol of goldenmotor VECxxx family controllers and PI-800 program.
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0x42 - LCD info, only getting 6 bytes back as Payload instead of 11 #1

Open zaidpirwani opened 4 years ago

zaidpirwani commented 4 years ago

Hello, THANK YOU for this API info on the UART data of the VEC-500 controller. I am trying to get its data and so far your API has been the most helpful.

I am only interested in getting LIVE / REALTIME Data - or as in the API, LCD INFO.

I am sending the LCD info command: 0x66 0x42 0x00 0xA8

and getting back the following 0x66 0x42 0x06 0x0b 0xa2 0x25 0x00 0x00 0x00 0x80 I am not able to deciper the PAYLOAD data in this response. I am trying, the last byte is for FAULT STATUS CODE, I checked by removing hall sensor wires and it showed an error on the last byte, but I also need the RPM, Temperature data and voltage/current info

The payload data, byte by byte seems to be like this 1st: 0x0b: this has remained constant while working with the motor 2nd: 0xa2: this value changes when the motor rotor moves 3rd: 0x25: this value also changes when motor rotor moves 4th: remained 0x00 throughout my tests 5th: remained 0x00 throughout my tests 6th: seems to be the fault status byte

The data I got is mentioned in the attached EXCEL file for review

THANKS in advance for your help. Book1.xlsx

SunnyWolf commented 4 years ago

@zaidpirwani Hello. Please implemment code below and compare mesuared value of RPM and controller data.

int tsns = data[1] * 256 + data[2] int rpm; if (tsns > 3500){ rpm = 0; } else { rpm = 60000 / tsns; }

matzesoft commented 4 years ago

Any news on this? I am trying to get live data of the VEC-300 and got the same results as @zaidpirwani except the 1st byte:

Controller powered via programming cable: 0x00 Controller powered with a 48V power adapter: 0x07 Controller under voltage with 40V: 0x06 Controller over voltage with 64V: 0x09 So the 1st byte is definitely something about voltage or battery charging.

As well, I can confirm the 6th byte for 100%. I have done various testings and this byte always matched with the error codes in the protocol.

brunopacola commented 2 years ago

Hi @zaidpirwani ! Did you make any progress? I'm also trying to read the information to mount a speedometer for this controller.

zaidpirwani commented 2 years ago

unfortunately the project did not go anywhere.

the motor driver stopped responding at all and I moved to new things.