Python Plugin: Growatt Inverter

[sincze]

Should be possible I think but needs work.
Maybe Growatt returns both the inverters in the JSON. Not sure.

[nitpicker]

When I check the debug log, then only the new one (installed yesterday) is returned now. So the values of the new inverter are now written in the first inverter log. So the data is not correct anymore...

[sincze]

Does it show up in Growatt as 2 converters? then it should be able to be splitted indeed

Other dirty option would be.... create second growatt account... attach 2nd converter to second account and add an additional plugin for second inverter.

[nitpicker]

Does it show up in Growatt as 2 converters? then it should be able to be splitted indeed

Other dirty option would be.... create second growatt account... attach 2nd converter to second account and add an additional plugin for second inverter.

They are both showing on the website of Growatt, but the script returns only the newly added one.

To create a second account is indeed a dirty option

[sincze]

In the debug log do you see multiple entries for:
['powerValue'] and ['totalValue'] ?

[nitpicker]

Yes, I see both one time, in the line: "(GrowattMain) Retrieved following json:..."

[nitpicker]

Other dirty option would be.... create second growatt account... attach 2nd converter to second account and add an additional plugin for second inverter.

Ok... ok... I used the dirty option

It works, so, happy now

[cORT3X]

hello

i tried addin this script for my domoticz system,
but i does not show up in the hardware list
any suggestions ?
i did add chmod + x and restarted

thanks

[nitpicker]

Did you allow 'Accept new Hardware Devices'?

[Rolandet]

Hi all

Since several days i'm not receiving any data from the portal anymore.

According to the log it should all work just fine, but the counters all remain on zero.

Here's an example of my log:

Code: Select all

 2021-10-17 17:07:56.592 Growatt: (Growatt) Login Succesfull
2021-10-17 17:07:56.592 Growatt: (Growatt) Plant ID: 324242 was found
2021-10-17 17:07:56.592 Growatt: (Growatt) Analyzing Data (3):
2021-10-17 17:07:56.592 Growatt: (Growatt) ---> Headers found
2021-10-17 17:07:56.592 Growatt: (Growatt) ---> Process Cookie Started
2021-10-17 17:07:56.592 Growatt: (Growatt) ---> SessionID found: 4B8E7A774DBD176C0E8926AD29F5517E
2021-10-17 17:07:56.593 Growatt: (Growatt) ---> ServerID found: 6ce0ae79fda023b3d5fed64b691287ab|1634483276|1634483276
2021-10-17 17:07:56.593 Growatt: (Growatt) Request Data with retrieved cookie!
2021-10-17 17:07:56.593 Growatt: (Growatt) Pushing 'WriteDirective' on to queue
2021-10-17 17:07:56.593 (Growatt) Processing 'WriteDirective' message
2021-10-17 17:07:56.593 Growatt: (Growatt) Sending 410 bytes of data 

Can anyone point me in the right direction to firx this?

[sstolk]

After further research the Growatt API is not right in Domoticz but OK in PVOutput.

Domoticz device filled by this script:

What you are seeing here is the TOTAL amount of produced power for the whole plant since installation.
Not the daily produced kWh.

Domoticz as of today where you can see where it went skyhigh:


The total amount is the only thing Domoticz keeps track off but not PVOutput.

I think something has changed in the Growatt API since 7 june 2022.
Can somebody confirm the same issue?

[nitpicker]

The pass2php script was changed:

define('LOGIN_FORM_URL', 'https://server-api.growatt.com/newTwoLoginAPI.do'); // 16-06-2022: URL of the login form.
define('LOGIN_ACTION_URL', 'https://server-api.growatt.com/newTwoLoginAPI.do'); // 16-06-2022: Login action URL. Sometimes, this is the same URL as the login form.

So maybe this script also need to change

[vespino]

This plugin worked for a decent amount of time, but I'm now getting the following errors:

Code: Select all

2022-08-03 09:24:20.647 Error: Growatt: Call to function 'onStart' failed, exception details:
2022-08-03 09:24:20.655 Error: Growatt: Traceback (most recent call last):
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 264, in onStart
2022-08-03 09:24:20.655 Error: Growatt: _plugin.onStart()
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 136, in onStart
2022-08-03 09:24:20.655 Error: Growatt: createDevices()
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 353, in createDevices
2022-08-03 09:24:20.655 Error: Growatt: image = Images["Growatt"].ID # Get id from database
2022-08-03 09:24:20.655 Error: Growatt: KeyError: 'Growatt'

Any thoughts?

[Rolandet]

This plugin worked for a decent amount of time, but I'm now getting the following errors:

Code: Select all

2022-08-03 09:24:20.647 Error: Growatt: Call to function 'onStart' failed, exception details:
2022-08-03 09:24:20.655 Error: Growatt: Traceback (most recent call last):
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 264, in onStart
2022-08-03 09:24:20.655 Error: Growatt: _plugin.onStart()
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 136, in onStart
2022-08-03 09:24:20.655 Error: Growatt: createDevices()
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 353, in createDevices
2022-08-03 09:24:20.655 Error: Growatt: image = Images["Growatt"].ID # Get id from database
2022-08-03 09:24:20.655 Error: Growatt: KeyError: 'Growatt'

Any thoughts?

Try renaming the Hardware device and save

My connection failes from time to time. Whenever I just change the name a bit, it seems to re-initialise the connection with growatts server

[waltervl]

Try renaming the Hardware device and save

My connection failes from time to time. Whenever I just change the name a bit, it seems to re-initialise the connection with growatts server

TIP: Just pressing the update button without a (small) change will also stop and (re)start a plugin.

[Rolandet]

Try renaming the Hardware device and save

My connection failes from time to time. Whenever I just change the name a bit, it seems to re-initialise the connection with growatts server

TIP: Just pressing the update button without a (small) change will also stop and (re)start a plugin.

really? Haha ever knew that

[vespino]

No luck.

[waltervl]

This plugin worked for a decent amount of time, but I'm now getting the following errors:

Code: Select all

2022-08-03 09:24:20.647 Error: Growatt: Call to function 'onStart' failed, exception details:
2022-08-03 09:24:20.655 Error: Growatt: Traceback (most recent call last):
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 264, in onStart
2022-08-03 09:24:20.655 Error: Growatt: _plugin.onStart()
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 136, in onStart
2022-08-03 09:24:20.655 Error: Growatt: createDevices()
2022-08-03 09:24:20.655 Error: Growatt: File "/opt/domoticz/userdata/plugins/Domoticz-Growatt-Webserver-Plugin/plugin.py", line 353, in createDevices
2022-08-03 09:24:20.655 Error: Growatt: image = Images["Growatt"].ID # Get id from database
2022-08-03 09:24:20.655 Error: Growatt: KeyError: 'Growatt'

Any thoughts?

Seems to be related to a custom icon set? Try to upload the icon zip file from the plugin folder again. See wiki page https://www.domoticz.com/wiki/Custom_ic ... binterface

[vespino]

Thanks @waltervl that did indeed solve the issue for me!

[jacobsentertainment]

Hi all,

I currently have issues with the growatt plugin, see topic

Code: Select all

2022-10-15 11:45:00.625 Error: Growatt: Google returned a status: 502
2022-10-15 11:55:05.127 Error: Growatt: Google returned a Server Error

Sometimes the plugin freezes up and doesn't update anymore due to the above errors. So I tried setting a timeout but that crashes domoticz and my pi to (domoticz doesn't respond and the pi gets so slow it needs rebooting) Also when I manually switch of the plugin (what acts as a restart of the plugin) domoticz crashes as mentioned above.

If more info is needed about logs or so please let me know. The plugin is important to me