Today Seplos support indicated to me that I don't need to set the RS485 Protocol to Pylontech as the RS485 version automatically determines the inverter protocol. I am out of options as I can see the inverter trying to communicate witb the BMS which does not seem to respond.
@houseofancients, from many posts it looks like you have successfully integrated the Seplos BMS
RS485 version with your inverter (unsure which brand). Do you mind sharing more details (ito pinouts, baudrate settings, or anything else that can assist) so that us fellows which are struggling to get it going might learn from you?
well, here goes, on the off chance of sounding like an idiot, but in reality i followed the manual ( the one i uploaded in the resource section) as to cable pin outs and dip settings.
I am running the RS485 version of the BMS ,as i swapped out the CANBUS version i had for the RS485
i am running 3 x Voltronics Axpert 8000 max's ( 3 Phase) for now
Have the first HW version of the rs485 bms
set my "master" inverter to Pyl at option 5 ( Reboot inverter after !!! ) , the others to USE
My BMS was set to RM485 per default, so no change needed
changed a UTP cat5e cable to reflect the pin-out in the manual, taking extra care to make sure connecting the right ends in the BMS and Inverter
UTP cable going to inverter is connected at the BMS in the ( mislabelled ) CANBUS port
dip switches set per manual, but shut bms down before changing them, and booted them with the new DIP switch settings.
after reboot it can take upto 60 seconds for the battery icon to start flashing ( meaning it's connected to the BMS) after a reboot
For monitoring i connect my laptop using a USB to RS485 device to my master battery - RS485 port a , using 19200 BAUD as my BAUD setting
really that is it
will be changing my inverters to Deye/Sunsynk's ( 12k 3 phase - x 2) in the comming months , which also means ( if i read correctly ) that i will need the CANBUS version of the BMS...
I suppose i will be ordering their 1.6 version, which is supposed to be much easier to work with and supports both CANBUS and RS485 ate the same port, autoselect the correct method , but guess i'll find out how that works