Modbus Addresses Solis RAI-3K-48ES-5G

[CaseyJones62]

I currently have the Solis RAI-3K-48ES-5G which I am connecting from a Raspberry PI via the Modbus.

I'm currently connecting and extracting the meter values (33130) but can't find the address for the reading for the CT clamp.

Does anyone know the Modbus Address for the CT power reading, I would expect something like 33xxx

Please note: This is for the Solis AC not the Hybrid and directly on the Modbus not via the WiFi stick.

 

[dezfutak]

This might be slightly out of date, but I have been using it as a reference for my DIY Battery:

https://www.scss.tcd.ie/Brian.Coghlan/Elios4you/RS485_MODBUS-Hybrid-BACoghlan-201811228-1854.pdf

FFI: https://github.com/dezfutak/thediybattery

 

[CaseyJones62]

I have already seen that doc thanks. Even gone to the level of dumping out all the registers for varying PV output, but still not been able to work it out. Can't seem to find a register changing that even aligns to the PV power output.

It's annoying as it must be there, as the Inverter Display shows the power on the CT correctly.

 

[dezfutak]

I have already seen that doc thanks. Even gone to the level of dumping out all the registers for varying PV output, but still not been able to work it out. Can't seem to find a register changing that even aligns to the PV power output.

It's annoying as it must be there, as the Inverter Display shows the power on the CT correctly.

Check out lines 162 to 178:

thediybattery/solis_5g_modbus_charge.py at main · dezfutak/thediybattery

Script to Read & Write data to a Solis Hybrid Inverter & integrate with Home Assistant - thediybattery/solis_5g_modbus_charge.py at main · dezfutak/thediybattery

github.com

....I calculate it from string1 & 2 current and voltage values.

EDIT: or you can use register 33058 (it's an unsigned 32 bit number)

 

[SeaGal]

... Can't seem to find a register changing that even aligns to the PV power output.

It's annoying as it must be there, as the Inverter Display shows the power on the CT correctly.

maybe "33057 total_dc_output_power 0 W" from this posting?

Solis S5: Various issues

Hello everyone! This is in France. The house has three phase power for the heat pump. I installed a Solis S5 hybrid inverter (S5-EH1P-6K-L) with two Pylontech US5000 and of course solar panels. It's a single phase inverter, I don't need three phase backup. My main reason for choosing this one...

diysolarforum.com

click on 'spoiler: lots of text' to show the table.

 

[Solar Guppy]

The PV registers should be the same for all Solis models, this is from a recent modbus doc I have

 

[curto]

Actually no - they seem to differ based on region in the world - in Australia our ones that work for a Solis 3P5K-4G-AU is (-1 from each of these when querying them) (so DC voltage 1 is actually queried as 3021)

Craig

 

[marky0]

This might be slightly out of date, but I have been using it as a reference for my DIY Battery:

https://www.scss.tcd.ie/Brian.Coghlan/Elios4you/RS485_MODBUS-Hybrid-BACoghlan-201811228-1854.pdf

Hi, the link to the modbus map you have posted appears dead. I am specifically interested to know if it contains the address to control backflow power. Do you have a saved copy you could upload ?

 

[rpdom]

Hi, the link to the modbus map you have posted appears dead. I am specifically interested to know if it contains the address to control backflow power. Do you have a saved copy you could upload ?

The link works for me. I can't see anything about backflow in the linked document.

 

[Eddycurrent]

I currently have the Solis RAI-3K-48ES-5G which I am connecting from a Raspberry PI via the Modbus.

I'm currently connecting and extracting the meter values (33130) but can't find the address for the reading for the CT clamp.

Does anyone know the Modbus Address for the CT power reading, I would expect something like 33xxx

Please note: This is for the Solis AC not the Hybrid and directly on the Modbus not via the WiFi stick.

Hi CaseyJones62. I have just inherited RAI-3K-48ES-5G and a PlyonTech us2000. I would like to read the data from the modbus. Could I ask you, is the Modbus port the 4 pins on the port marked COM next to the built in WiFi aerial port ?. Would you be able to give me a few tips on how you have your Pi connected. Thank you

 

[SeaGal]

Hi CaseyJones62. I have just inherited RAI-3K-48ES-5G and a PlyonTech us2000. I would like to read the data from the modbus. Could I ask you, is the Modbus port the 4 pins on the port marked COM next to the built in WiFi aerial port ?. Would you be able to give me a few tips on how you have your Pi connected. Thank you

Welcome! Yes... you can buy plug on eBay to connect to it. Check out this thread for more details on modbus comms...

Solis S5: Various issues

Hello everyone! This is in France. The house has three phase power for the heat pump. I installed a Solis S5 hybrid inverter (S5-EH1P-6K-L) with two Pylontech US5000 and of course solar panels. It's a single phase inverter, I don't need three phase backup. My main reason for choosing this one...

diysolarforum.com

 

[Eddycurrent]

Welcome! Yes... you can buy plug on eBay to connect to it. Check out this thread for more details on modbus comms...

Solis S5: Various issues

Hello everyone! This is in France. The house has three phase power for the heat pump. I installed a Solis S5 hybrid inverter (S5-EH1P-6K-L) with two Pylontech US5000 and of course solar panels. It's a single phase inverter, I don't need three phase backup. My main reason for choosing this one...

diysolarforum.com

Hi @SeaGal Thank you for the info and link, I have found it very useful and a good starting point for me

 

[SeaGal]

Forgot to add; here's the connector you'll need:-

Exceedconn EC04681-2023-BF Male/Female for Solis/Ginlong Inverter RS-485 port | eBay

Genuine Exceedconn EC04681-2023-BF Female and EC04681-1123-BF Male pair for Solis/Ginlong Inverter RS-485 port. You can see how I made my own local Solis interface on my Github / PhillyGilly / SolarisS6ArduinoMqtt.

www.ebay.co.uk