Pylontech - Servtec console software

Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Pylontech - Servtec console software

#21

Post by Oldgreybeard »

I've tried to decode how they count cycles, without any joy. My pack sometimes goes days without recording a cycle, then clocks up two or three cycles in a week. There must be some sort of algorithm in the BMS firmware that adds up the charge and discharge energy and does some sort of non-linear assessment as to what counts as a full cycle.
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: Pylontech - Servtec console software

#22

Post by ducabi »

I'm keen on DIY rather than spending £50 for servtec but I'm can't find a good step-by-step description of how to make the cable. Do I need RS232 at all?

Or shall I just buy -->
Tinbum wrote: Wed Oct 19, 2022 9:39 am edit even cheaper here https://www.ebay.co.uk/itm/275278032717
+ also RJ45. Then, bin one end of RJ45, and RS232 end of the above cable, and link the cables?
marshman
Posts: 614
Joined: Thu Jun 17, 2021 7:58 pm

Re: Pylontech - Servtec console software

#23

Post by marshman »

ducabi wrote: Mon Dec 05, 2022 5:42 pm I'm keen on DIY rather than spending £50 for servtec but I'm can't find a good step-by-step description of how to make the cable. Do I need RS232 at all?

Or shall I just buy -->
Tinbum wrote: Wed Oct 19, 2022 9:39 am edit even cheaper here https://www.ebay.co.uk/itm/275278032717
+ also RJ45. Then, bin one end of RJ45, and RS232 end of the above cable, and link the cables?
NO! The 9 pin RS232 connector contains the electronics that convert from '232 serial to USB and handle all the USB "negotiation" stuff - not a proper technical description - I think it is called enumeration - but you get the idea. Easiest way is to do as Tinbum says, 232 to USB converter lead then get a 232 lead, chop off the end and fit a RJ45. Plug the two together, RJ45 in the Pylons and USB into the laptop.
Tinbum
Posts: 1112
Joined: Mon May 31, 2021 9:55 pm

Re: Pylontech - Servtec console software

#24

Post by Tinbum »

Image
85no 58mm solar thermal tubes, 28.5Kw PV, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, 8kWh Growatt storage, 22 x US3000C Pylontech, Sofar ME3000's, Brosley wood burner and 250lt DHW
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: Pylontech - Servtec console software

#25

Post by ducabi »

Do I need a specific version of Batteryview for US3000C? I've connected the cables and checked the wiring couple times, so it looks ok, but it doesn't connect with my version (3.0.28).
Tinbum
Posts: 1112
Joined: Mon May 31, 2021 9:55 pm

Re: Pylontech - Servtec console software

#26

Post by Tinbum »

Thats the latest version that I know of and should work OK.
85no 58mm solar thermal tubes, 28.5Kw PV, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, 8kWh Growatt storage, 22 x US3000C Pylontech, Sofar ME3000's, Brosley wood burner and 250lt DHW
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: Pylontech - Servtec console software

#27

Post by ducabi »

Is there any specific procedure to connect laptop to battery or just plug-n-play without disconnecting batteries from inverter?
Tinbum
Posts: 1112
Joined: Mon May 31, 2021 9:55 pm

Re: Pylontech - Servtec console software

#28

Post by Tinbum »

Just plug and play. Can you see the serial device ok on the computer? Can you select the com port ok in battery view?
85no 58mm solar thermal tubes, 28.5Kw PV, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, 8kWh Growatt storage, 22 x US3000C Pylontech, Sofar ME3000's, Brosley wood burner and 250lt DHW
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: Pylontech - Servtec console software

#29

Post by ducabi »

It usually shows com4 but once showed com3. After trying to connect it throws : "after try, 0 times, time out for command".
Tinbum
Posts: 1112
Joined: Mon May 31, 2021 9:55 pm

Re: Pylontech - Servtec console software

#30

Post by Tinbum »

are you on Windows?
85no 58mm solar thermal tubes, 28.5Kw PV, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, 8kWh Growatt storage, 22 x US3000C Pylontech, Sofar ME3000's, Brosley wood burner and 250lt DHW
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