20 - Build a Waveshare Modbus Interface - Home Assistant Tutorial - Solax Solis Growatt Sofar 

Thanks for this - I'd have spent *ages* dicking around trying to get my Waveshare unit up and running without it!

Hello, today with the help of your video I managed to integrate Solax in H.A. with Waveshare Modbus. I personally thank you very much. A good day.

Excellent tutorial. Looking forward to building my own now. Many thanks once again Janik!

Brilliant video - thank you

Thanks for this, I ordered a waveshare yesterday morning so the timing of this video is perfect!

Today i have finished my little project following your video step by step. It worked without any issues. Thank you very much!

Perfect explanation JW, worked like a charm for my growatt SPH-BHUP.

I'm going to try this with my FoxESS inverter

OMG thank you sooo much! ❤ First I’ve been using the Solax integration with the dongle but it would stop working every other day. Then found out about the Waveshare which I bought a couple of months ago and since then I’ve been trying to make it work but always unsuccessfully, I almost gave up until today! Your video is super clear and easy to follow. In the next days I will also add the enclosure and make it nice to look rather than just functional 😅

Great tutorial, thanks. I've ordered a wave share module. Any suggestions as to what the setting would be for a sunsynk inverter? I get the data from the cloud at the moment but as you correctly mentioned this is prone to problems if there are any server outages or other internet related issues and even when it works it can be more than a minute between refreshes.. (yes I have increased the update time on the sunsynk to 60 seconds (default is 300). So if I can get this to work on my three sunsynk inverters I'll be more than a little please...

Thanks for the nice explanation in the video Are there people who have already managed to get it working with a Solis inverter? I have followed all the steps and measured the cables, but for me the act LED does not flash. I have the poe version because my voltage from the inverter is only 5 volts. I have also tried the baterite on 9600 but no success. If something else is connected to a data logger, the RS485 connection works fine. Does anyone have any tips?

So in order to get 3 of these modbus devices talk to each other like a growatt inverter, a Wallbox like Pulsar Plus and a eastron 3 phase smart meter I would need rather 3 of these modbus rs 485 to rj45 connectors ? Would be easier to order 3 instead of 1 by one considering that those machines are distributed across the house with an inverter somewhere, the smartmeter in the grid connection point cabinet and the charger / wallbox in the garage. I hope you can help me regarding this topic ! Or is there any wifi connection or bridge from the usual shine wifi x or s stick to the modbus ? I had tried that first by installing the modbus for the ip of the inverter / stick. But I got no entities as you did. And you had mentioned that wifi modbus wouldl be possible but not so reliable and dependent on the internet. Thanks

Thanks . I have a solis and Solax inverter ..is it possible for this integration to work with both inverters ...they are independent on different arrays but on the same LAN network,

Wow! amazing.. Can you share the image where to put the RJ cable (to the inverter)

Great tutorial, I’d love to use those with my Solax x1 boost, but I’m not sure I have a comm/ct port free? I have an TS458 port that’s in use for the power meter to tell my inverter how much power the house needs, is my inverter not compatible?

Hi there, Thank you so much for the video it is very much appreciate. I'm having trouble with only being able to see 4 entities. I have set the static IP on my router and in Vircom I have checked the IP in my browser and have full access I have reset the device and router and it keeps the same ip address I have changed the port to 502 I have changed it to Modbus TCP protocal I have changed the Baud rate to 19200 and check the inverter setting to make sure this is correct In advanced setting I have changed it to simple modbus to TCP and RTU In HA I have changed the polling to 10 Selected Parallel Mode as I have my inverters in parallel Input the ip address exactly as I get access to it through a browser TCP port is 502 I have rebooted HA, and power cycled the batteries. But still only 4 entities, any idea what I'm doing wrong here?

Thanks for the guide - my inverter (Solax X1 G4 7.5D) user manual COM PIN Definition just has pin 4 and pin 5 labelled as 485A&B. Crosses are marked in all other pins, assuming this means they are dead and I need to find an external power supply for the Waveshare? If so, does the "ground" pin on the waveshare not need the link wire from -ve?

Thank you for your video. Can I also use this on my DEYE 12K hybrid inverter?

Thank You for this tutorial. How can I connect the waveshare to the inverter when an EV Charger is also connected to the com port

Hi, Just ordered waveshare to connect to 2 x Solis S5-EH1P3.6K-L. Also ordered correct 4 pin RS485 plugs for inverters. Any advice about how to connect/use terminating resistors would be very helpful, Will S says these will be needed.

Great set of videos - TY I have a small problem you might be able to help resolve - currently communicating withHA via the SolaX Modbus integration via the wifi dongle - all entities present, switch over to the Waveshare interface and im only getting 4 entities, have tried deleting, rebooting - switch back to the wifi dongle IP and all entities present again ?

Has anyone tried to install this in Home Assistant in a Docker container? I've repeatedly tried but failed to get HA to talk to the Modbus I/F not sure whether it is a network or python issue in the container☹

Hi, nice tutorial! How many devices can I connect to this Waveshare's device? I have 20 modbus devices(thermostats) and im trying to find a modbus to MQTT converter. Does Waveshare provide any product?

Worked my way through most of this after getting fed up with the wifi dongle dying and finally got it working. Beware the modbus adapter doesn't appear to work at anything other than 10m ethernet, which seems to be a problem for my Omada switches. I've worked around it with an old switch I had but just be aware if the ethernet doesn't come up it could be that.

I see you are powering the wave share module from the rj45 rs485 port on the inverter. Do you know if this is common on these ports or particular to your type ? I have sunsynk inverters do you know if these will also provide power via the rj45 ? If not would you have any idea how I could find out ? I've searched for details on google but haven't found anything. I can find a version of the Modbus protocols etc but not the physical set up (pinouts etc) . Maybe I went for the wrong inverter this seems so easy to set up on the solax. Thanks.

Hello, thank you for the great video clip! I have tried to follow all the steps, everything looks good, the blue LED light is on, and I have TCP connectivity with the Modbus to ETH server. I have downloaded the Modbus Solax program on Home Assistant and entered the IP, bandwidth, etc., for the Growatt inverter, but no device or entities are showing up. Also, the blue light on ACT is not blinking every 10 seconds as I have configured in the Solax Modbus program. Does anyone have any tips, in exchange for some coffee cups? :)

Great video, but mine is still not working. I have the POE version so not using power from my X1 Mini G4. I was missing a ground connection so used pin 3 (In my manual it's listed as 'Heatpump -' On checking it's a direct reference to the chassis ground of the inverter. I get the red power light and the blue status light, but HA refuses to talk to it. The adding process just freezes at the initialisation stage. - Any ideas? Is there a setting in the inverter that needs changing (I've got the installer password). Thanks,

Hi you mentioned in the vidoe that you made this for a customer do you make these for other people? i have a solis inverter and a wireless dongle

Thanks so much for this walkthrough, I've learnt so much However, I have an issue with connecting to my X1AC. I've managed t wire it up (pins 6,7 and 8) and it's powered externally with a 12v power supply. I have a red power light and a green link light, which is great. However, when I configure the WaveShare via VirCom, I can't get the link light to turn blue (and HA doesn't see the inverter, so no device or entities). Do you know if there are any specific settings that I need to apply via Vircom to an X1 AC inverter, in order to make this work? I'm really close to getting this working so if you (or anyone else) has any additional config information, it would be greatly appreciated. Many thanks in advance.

I've got mine setup and configured, its getting power from teh inverter but it seems to never poll the inverter, the activity light doesnt blink at all, i'm guessing the blue wires did not terminate correctly.

Hi, I have a question. If I were to add this Waveshare Modbus Interface to my Home Assistant system, how do keep my historical data from the wireless setup that I have already?

Hi , I like your videos, I have followed the tutorial with Wifi connection. All connected, all running well , but I have only 4 entities available. something like temperature and not important data. I am missing basically all entities about the power, V,A etc. I have sent you an email, but no answer so far :( I have Solax X1 Boost G3.2 - is this a problem ? I mean the connection works well, but I dont have any Data that could use. is it because my inverter is not offering them , or I have problem somewhere else ? I would like to try this RS485 as well, but I dont know if it make sense could you please answer thx f

Hi, is it possible to use the Modbus interface if the RS485 is already used for the Solax EV Wallbox?

Nice video but one thing confuses me. In your video '07 - Configure Modbus Integration - Solax Solar Home Assistant Tutorial' you state that during the HA configuration you should enter in the ip address of the Solax dongle. In this video you said you should enter in the ip address of the Waveshare Modbus adapter. Which is correct? When I enter the Waveshare ip address I can only see 4 entities yet when I enter the WiFi dongle ip address I can see the full 257 entities. I have followed the vids to the letter and all matching baud rates etc but no luck with the Modbus ip. I have a X1 Gen4 and according to Solax they updated all my software and firmware two weeks ago before I embarked on this. Any help would be appreciated. Thanks

I have a solax x1ac inverter, it has network socket labelled 485, can I connect to that?

First: thx so much for your tutorials! Question: if Wifi-Dongle is not stable, would the Pocket LAN-Interface V3.0 be the better choice? My issue: DTSU666 is connected to my COM-Port, so using home assistant via Modbus is no option 😞

Hello, thank you for the great video clip! I have tried to follow all the steps, everything looks good, the blue LED light is on, and I have TCP connectivity with the Modbus to ETH server. I have downloaded the Modbus Solax program on Home Assistant and entered the IP, bandwidth, etc., for the Growatt inverter, but no device or entities are showing up. Also, the blue light on ACT is not blinking every 10 seconds as I have configured in the Solax Modbus program. Does anyone have any tips, in exchange for some coffee cups? :)