@yasko, just a further update for your spreadsheet
I can confirm that the GM1000D (Dual CT) uses the same protocols as defined earlier by @apr
The Inverter (SBP5000) sends out the following every (approx 200ms)
Request from Inverter to read Energy meters
03 03 00 61 00 17 55 F8
03 - ID of...
Just a further update on my progress with my 3 x SBP5000 units. I have been working with some guys associated with the Home Assistant project and we have made good progress.
Using the UDP 8899 protocol and the older AA55 implementation which seems to be used by the ES/EM and SBP...
OK got something happening here
PV Master when it starts up does a UDP query on port 48899. All of the inverters respond to this with their IP Address, their MAC address and a short identifier - which appears to be either an internal model number or something to do with the ethernet card -...
OK just for anyone else searching on here - the inverter does not support Modbus over UDP/TCP.
It does respond on port 48899 with something - which i will wireshark tomorrow as this is how the PV Master app talks to it.
May end up reverting to using RS485
@yasko - yes that is much tidier thanks.
I will contribute once i receive all my gear - just waiting to hear from @apr to see if he is happy to share his arduino code or if i need to go out and contract a freelancer to write it for me
@yasko - thanks for that will check the Repo. As i am getting the AC coupled inverter as a retrofit i will end up with the Dual CTs.
I am still waiting on my Modbus map for the SBP5000 from Goodwe
@apr - can you confirm which GoodWe Mains Meter you have - they appear to have 3 - GM1000D - this is apparently the one i will be getting, GM1000 (the only difference i can see is that one has dual CTs) and GM3000 which appears to be the 3phase unit - presumably with 3 CTs.
I assume they would...
Hey Yasko - thanks for the response. Yes i am waiting on Goodwe to send me the Modbus map for the SBP5000 which i will have early next week. I will then be able to compare it with yours - i assume there will be differences as the SBP is a retrofit AC coupled battery inverter only - no solar...
Good news thanks APR. This sounds like it could work for me - use an ESP8266 (or ESP32) to talk to the 3 phase energy meter and then broadcast that to the Raspberry PI that is connected to each of my 3 inverters.
What did you program the ESP8266 in ? Platform.io, Arduino IDE etc ?
Hey thanks for the quick reply.
That was my other thought was to get in front of the energy meter that the Inverter talks to and basically fake it out into thinking i was the energy meter - i could then feed the inverter the info from my IOTAWATT which monitors the whole of house power and all...
Hey Guys - you have done some great work here. Very impressed !! @apr - i assume the same from the Whirlpool forums?
I am about to purchase on July 1st 3 of the GoodWe SBP 5000 inverters and couple them to LV Alpha ESS battery packs.
Have either of you tried dumping power from the batteries to...
Yep i was aware of that thanks - BUT we are limited to a max feed in on 5KW to the grid on any single phase - so if i go for a single phase battery then i will be limited to a max of 5KW - i am also yet to find any single phase battery that will supply more than 5KW AT ONCE (some peak to about...
Hey Guys - fantastic work on this - here in Australia we have a similar scheme from a company Amber electric.
I would highly recommend to you guys to look at Node-red - if you are not into programming etc - this will make a lot of the automation you are looking for nice and easy.
If you get a...