how to add APSystems ECU-3 solar inverter monitor

[FireWizard]

Hello @lsp242.

As it is about 5 to 6 years ago, that I created this flow with web-scraping for APSystems ECU-3 micro-inverters, there is a reasonable change, that there has been software updates since then. I do not have my original flow anymore, although I would be able to fetch the latest version from this thread. As you can see, @Benneton modified the flow for Home Assistant. So therefore I asked:

As I do not have that flow anymore (I think) can you send me your flow?

In this case I can advise you, where to connect "Debug" nodes, in order to find a possible cause of the failure.

Regards

[Benneton]

Hi Firewizard,

I did only change the output part of the flow, did not change anything on the scraping part.
No changes to the software of the ECU-3, still version 4.1, I have not seen a newer version.

I have attached the last version I worked with in Domoticz. Replaced the IP addresses by 192.168.xxx.xxx and replaced the inverter ID by "your_inverter_id".

So to make it work this will need to be adjusted for the first 2 IP address to the IP of your ECU-3 and the third (last) IP address to your MQTT broker.
Next to this you will need to update your_inverter_id to the ID's you use.
Forgot to mention:
The IDX ID's will need to be updated to what you use.

As I only have 12 panels/6 inverters this flow will there fore only scrape 6 inverters!


Hope this helps.

Domoticz_AP_Systems_flows.rar

Node_Red_Flow

(2.3 KiB) Downloaded 189 times

Update (19/06/2025): added IDX info