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  1. M

    DALY? BMS RS232 communication protocol CRC calculation

    Hello Jblance, I think you are right, this is not a CRC. With your reference to the "wrong" transmission dates, I was able to confirm your acceptance. I will study it further and present the result here
  2. M

    DALY? BMS RS232 communication protocol CRC calculation

    Here is a small selection for battery cells 1 and 2 In column B, 01 = battery cell 1 02 = battery cell 2 Column D is constant 0x0d for the measurement period Column E here the low byte of the voltage is output. Table sorting according to column E ascending. In column F the ceksum is shown...
  3. M

    DALY? BMS RS232 communication protocol CRC calculation

    Thanks for the answer. I know this crc calculation but it only works with the 7 byte protocol, e.g. DD A5 04 00 FF FC 77. The Sinowealth program communicates via a 3 byte protocol, for which I do not know any protocol description or crc calculation.
  4. M

    Daly Smart BMS cannot connect to PC

    Hello, you have a DALY R05W-GB19 and I think different software is required here - v0.2 You are using v0.1 https://www.dalyelec.cn/newsshow.php?cid=25&id=77&lang=1
  5. M

    DALY? BMS RS232 communication protocol CRC calculation

    This is the approved protocol A5 05 ... See first sentence of my request 3 bytes are sent and 3 bytes are received including the checksum
  6. M

    DALY? BMS RS232 communication protocol CRC calculation

    I know this page well enough, but I cannot find a solution here. Here 7 bytes are sent and approx. 30 bytes are received With the protocol of [Sinowealth BMS Tool Setup V0.2.msi] 3 bytes are sent and 3 bytes are received and that works, see scan.
  7. M

    DALY? BMS RS232 communication protocol CRC calculation

    Hello, with my ENERGY BMS, I think this is a DALY BMS does not work as a known protocol: e.g. [DD A5 05 00 FF FB 77] After installing [Sinowealth BMS Tool Setup V0.2.msi], I could read and administer everything with the PC. When scanning the first battery cell, a very simple protocol...
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