No data displayed but appears connected.

[albuchan]

Hi I have a Daly BMS 12v 4S 100amp device. And I have a daly usb-mon (meaning it has the 3 pin monitor connector rather than the 5 pin Uart) serial converter. It works fine with the win10 Daly Sinowealth tool v 0.2 using "SH39F003" IC as connection type. However using the same converter on a USB on the Pi. The serial is found (see image) and the green light below start flashes. but no data received - the databoxes on tab "main" remain empty except SOC 100. Is there something I have missed doing? Can I check if the right serial is found? I do have a wireless kb/mouse and another USB device for connection to NMEA2000 bus (this is on a boat).

Thanks

[njfaria]

Hi, Do you have the possibility to take a picture of the converter ? The users i know where using the dalybms software. Thats the protocol i rely on. Why are they using different software for each bms ? I found some info on https://energytalk.co.za/t/daly-smart-bms-connections-llt-bms-communication-with-venus/322 I am reading threw it. Since that is on a boat i presume there is no internet on the raspberry to that i could connect to threw vnc.

A quarta, 2/06/2021, 12:04, albuchan @.***> escreveu:

Hi I have a Daly BMS 12v 4S 100amp device. And I have a daly usb-mon (meaning it has the 3 pin monitor connector rather than the 5 pin Uart) serial converter. It works fine with the win10 Daly Sinowealth tool v 0.2 using "SH39F003" IC as connection type. However using the same converter on a USB on the Pi. The serial is found (see image) and the green light below start flashes. but no data received - the databoxes on tab "main" remain empty except SOC

100. Is there something I have missed doing? Can I check if the right serial is found? I do have a wireless kb/mouse and another USB device for connection to NMEA2000 bus (this is on a boat).

Thanks [image: image] https://user-images.githubusercontent.com/74618562/120468852-f99e8a80-c3a1-11eb-8aee-81b8b1d3a567.png

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[albuchan]

Hi Nuno Thanks for quick reply. There DOES seem to be 2 SW in use by Daly and not much written on Sinowealth for the exchange protocol. Personally I think the uart rx/tx 9800 is the same, but not clear what handshake sequences needs to get the box to reply. Here is the converter I have ON the DIYSolar forum someone uploaded a english translation of the "manual"... doesn´t talk about protocol more what data can be found. (here https://diysolarforum.com/threads/daly-smart-bms.9070/page-4) I have downloaded it and attaching it here.. Sinowealth BMS Tool Introduction V0.1 English.pdf. Access is available to the pi.. but via anydesk. I have a fair amount of other sw running that I wouldn´t want to disrupt. I would need to be on the boat to let you in.. VNC is also on the pi... but since I don´t have static IP i use remote.it as a wrapper. Suggest we use email to exchange any credentials or agree when you could access remote.

Alastair

[solarsnoop]

U need this converter for daly solpiplog. The monitor usb adapter is not rs485 protocol

[solarsnoop]

And you need this output port on your bms

[solarsnoop]

I use dalylog with 3 different bms all connected with rs485 it will work fine. Maybe uart is working too but this must comment nuno

[albuchan]

Hi. I do have another converter for 485( not Daly one and so connection is tricky since I don’t have a 5 pin connector that fits . But since none of the other ports are marked I can’t be sure that it does or doesn’t have a 485. My dealer told me that this model does not have 485. What I will try to do is connect on win10 with sinowealth and see if I can snoop the rxtx exchanges. Sorry for bad photos but installation doesn’t let me take photos easily

Temp sensor and Bluetooth

Uart serial + ????

Alastair

Sent from my iPhone

On 2 Jun 2021, at 16:38, solarsnoop @.***> wrote:



U need this converter for daly solpiplog. The monitor usb adapter is not rs485 protocol

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[njfaria]

feel free to send me a mail to solpiplog at gmail.com regarding access to your pi.

albuchan @.***> escreveu no dia quarta, 2/06/2021 à(s) 17:12:

Hi. I do have another converter for 485( not Daly one and so connection is tricky since I don’t have a 5 pin connector that fits . But since none of the other ports are marked I can’t be sure that it does or doesn’t have a

485. My dealer told me that this model does not have 485. What I will try to do is connect on win10 with sinowealth and see if I can snoop the rxtx exchanges. Sorry for bad photos but installation doesn’t let me take photos easily

Temp sensor and Bluetooth

Uart serial + ????

Alastair

Sent from my iPhone

On 2 Jun 2021, at 16:38, solarsnoop @.***> wrote:



U need this converter for daly solpiplog. The monitor usb adapter is not rs485 protocol

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

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[albuchan]

Nuno, I have been looking into this, there are quite a few posts confirming the info you shared in the energytalk forum that there are 2 daly BMS tools - - In particular tanoshimini describes in detail the Daly BMS PC software using 486 protocol used https://diysolarforum.com/threads/decoding-the-daly-smartbms-protocol.21898/ - I am guessing this is the same protocol you are using in your pi app. However, in https://diysolarforum.com/threads/daly-bms-rs232-communication-protocol-crc-calculation.21853/ mbeq99 is focusing on the Sinowealth BMS tool which is 232 based and seems to be what works on my BMS. I also "sniffed" the com port and saw the 3 byte sentences. It also appears that Daly are not being very forthcoming with documentation about this protocol as they have been with SmartBMS tool. I think that it would need a complete new comms module in your code to work, and I am not sure there is enough info to do this (I am not a programmer even though I have a good background in electronics and IT). So I think best I can do is thank you for replying to me and for the work you have done.