New Python plugin: Domoticz SolarEdge_ModbusTCP

[AddieJanssen]

I have created a Python plugin to get the data from my SolarEdge inverter into Domoticz.

The inverter needs to be connected to the network and Modbus needs to be enabled on it.

The plugin is available on GitHub:

https://github.com/addiejanssen/domotic ... tcp-plugin

It would be great to hear your feedback on it.
If it is working for you: please share your setup.

Enjoy,

Addie

[eddieb]

Hi,

just installed this plugin following your instructions.
All went smooth and it seems to work ok on a SE3500H ...

Eddie

[McMelloW]

Hi Addie,

Installed your plugin today as well. Works like a charm. Well done!
Also I have an SE3500H with 12 panels.

I did set debug = true But I don't see any messages.

[eddieb]

Running for 2 days now and I am very pleased with this plugin.

I notice something in I can not explain ...

Screenshot 2020-09-30 at 07.13.34.png (363.96 KiB) Viewed 4032 times

Why do these events occur with different users ?
Why are some events caused by "timer" ???

[McMelloW]

Having the same as Eddieb.

SolarEdge-Status.png (32.46 KiB) Viewed 4026 times

The plugin is running 24/7 During sleeping hours, 'sleeping' data is still added to the database. Can we change this?

[eddieb]

Actually I don't mind monitoring (parts) of the inverter 24x7
I was just curious about the different users ...
And, if there is somthing like "sleeping" time, when is this ? is this configurable ?

[McMelloW]

I don't know about the different users either.

What I understand from my supplier. The inverter goes to the status sleeping when the production is less the a certain amount on the panels.
Up till now, I have used a DzVents script with a perl script to readout the inverter. This is active only during daytime.

Code: Select all

	on = {
		timer = { 'every minute between 15 minutes before sunrise and 15 minutes after sunset' } 

The inverter is allways in sleeping status during this time interval.

[eddieb]

at least the Temperature, P1 Voltage and Frequency counters work 24/7.

the inverter self does not update the other counters when idle ...

[McMelloW]

at least the Temperature, P1 Voltage and Frequency counters work 24/7.

the inverter self does not update the other counters when idle ...

In that case, it is no big deal to run 24/7

[freijn]

Hi Addie,

Would it also be possible to "fire" the script from a script ?

i.e. I do like "sync" it from my P1 activity.
This to be able to calculate the in house consumption of power.
( yes I know calculating it from an event makes me calculating it 1 sample too late , but I still like this very much )

[eddieb]

Hi Addie,

Would it also be possible to "fire" the script from a script ?

i.e. I do like "sync" it from my P1 activity.
This to be able to calculate the in house consumption of power.
( yes I know calculating it from an event makes me calculating it 1 sample too late , but I still like this very much )

that would be nice, but P1 executes every second and I doubt if the inverter likes to be polled every second ...

I am running a script here that counts P1power and Solarpower into Realpower.
The script is triggerd by Solarpower and is pretty accurate.
Except when there is fast fluctuation in Solarpower ... The values from the inverter seems to have a small delay compared with P1 ...
My calculation sometimes give me NEGATIVE Realpower usages because of this !

[freijn]

My inverter is happy with it. fired and calculated every second.

Capture.JPG (44.42 KiB) Viewed 3938 times

[eddieb]

Hmm,
I am interested in the modifications you made to make this happen

[McMelloW]

Getting regular the following errors in the log.
What can I do about this?

Code: Select all

2020-10-03 11:58:54.790 Error: (SolarEdge) 'onHeartbeat' failed 'KeyError'.
2020-10-03 11:58:54.790 Error: (SolarEdge) ----> Line 522 in '/home/pi/domoticz/plugins/domoticz-solaredge-modbustcp-plugin/plugin.py', function onHeartbeat
2020-10-03 11:58:54.790 Error: (SolarEdge) ----> Line 335 in '/home/pi/domoticz/plugins/domoticz-solaredge-modbustcp-plugin/plugin.py', function onHeartbeat

[Sjonnie2017]

Hi,

I installed the script in a somewhat different way than described on github (I missed one line ). I can add the hardware but the devices don't show up. Any help truly appreciated!

The steps I took (and the mistake I made )

Code: Select all

pi@RPi3:~/domoticz/plugins $ git clone https://github.com/addiejanssen/domoticz-solaredge-modbustcp-plugin.git
Cloning into 'domoticz-solaredge-modbustcp-plugin'...
remote: Enumerating objects: 34, done.
remote: Counting objects: 100% (34/34), done.
remote: Compressing objects: 100% (25/25), done.
remote: Total 34 (delta 12), reused 26 (delta 8), pack-reused 0
Unpacking objects: 100% (34/34), done.
pi@RPi3:~/domoticz/plugins $ sudo systemctl restart domoticz
pi@RPi3:~/domoticz/plugins $ sudo pip3 install solaredge_modbus
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting solaredge_modbus
  Downloading https://files.pythonhosted.org/packages/9c/32/e55ff68a75f940b568c0195ab346b22bf94f7820e8554bb825c3c4c447e2/solaredge_modbus-0.6.0-py3-none-any.whl
Collecting pymodbus>=2.3.0 (from solaredge_modbus)
  Downloading https://files.pythonhosted.org/packages/78/21/6c57bfb2b3fca465606a8115e7993bcb008c0714592a55b4ec9e903f8371/pymodbus-2.4.0-py2.py3-none-any.whl (141kB)
    100% |████████████████████████████████| 143kB 1.1MB/s 
Requirement already satisfied: pyserial>=3.4 in /usr/lib/python3/dist-packages (from pymodbus>=2.3.0->solaredge_modbus) (3.4)
Collecting six>=1.15.0 (from pymodbus>=2.3.0->solaredge_modbus)
  Downloading https://files.pythonhosted.org/packages/ee/ff/48bde5c0f013094d729fe4b0316ba2a24774b3ff1c52d924a8a4cb04078a/six-1.15.0-py2.py3-none-any.whl
Installing collected packages: six, pymodbus, solaredge-modbus
  Found existing installation: six 1.12.0
    Not uninstalling six at /usr/lib/python3/dist-packages, outside environment /usr
    Can't uninstall 'six'. No files were found to uninstall.
Successfully installed pymodbus-2.4.0 six-1.15.0 solaredge-modbus-0.6.0
pi@RPi3:~/domoticz/plugins $ sudo systemctl restart domoticz

EDIT: I forgot to add the log

Spoiler: show

Code: Select all

 2020-10-03 17:37:45.371 Status: (Zonnepanelen) Started.
2020-10-03 17:37:45.804 Status: (Zonnepanelen) Entering work loop.
2020-10-03 17:37:45.805 Status: (Zonnepanelen) Initialized version 1.0.0, author 'Addie Janssen'
2020-10-03 17:42:57.334 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:42:57.336 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:42:57.336 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:42:57.336 (Zonnepanelen) onHeartbeat
2020-10-03 17:42:57.336 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:43:56.476531
2020-10-03 17:43:27.364 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:43:27.406 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:43:27.406 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:43:27.406 (Zonnepanelen) onHeartbeat
2020-10-03 17:43:27.406 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:43:56.476531
2020-10-03 17:43:57.417 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:43:57.430 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:43:57.430 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:43:57.430 (Zonnepanelen) onHeartbeat
2020-10-03 17:43:57.433 (Zonnepanelen) Connection Exception when trying to contact: 192.168.16.160:502
2020-10-03 17:43:57.433 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:45:57.433225
2020-10-03 17:44:27.440 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:44:27.461 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:44:27.461 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:44:27.461 (Zonnepanelen) onHeartbeat
2020-10-03 17:44:27.461 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:45:57.433225
2020-10-03 17:44:58.059 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:44:58.085 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:44:58.085 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:44:58.085 (Zonnepanelen) onHeartbeat
2020-10-03 17:44:58.085 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:45:57.433225
2020-10-03 17:45:28.237 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:45:28.260 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:45:28.260 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:45:28.260 (Zonnepanelen) onHeartbeat
2020-10-03 17:45:28.260 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:45:57.433225
2020-10-03 17:45:58.262 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:45:58.310 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:45:58.310 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:45:58.310 (Zonnepanelen) onHeartbeat
2020-10-03 17:45:58.313 (Zonnepanelen) Connection Exception when trying to contact: 192.168.16.160:502
2020-10-03 17:45:58.313 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:47:58.313337
2020-10-03 17:46:28.268 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:46:28.318 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:46:28.318 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:46:28.318 (Zonnepanelen) onHeartbeat
2020-10-03 17:46:28.318 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:47:58.313337
2020-10-03 17:46:58.275 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:46:58.290 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:46:58.290 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:46:58.290 (Zonnepanelen) onHeartbeat
2020-10-03 17:46:58.291 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:47:58.313337
2020-10-03 17:47:28.966 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:47:29.012 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:47:29.012 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:47:29.012 (Zonnepanelen) onHeartbeat
2020-10-03 17:47:29.012 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:47:58.313337
2020-10-03 17:47:58.972 (Zonnepanelen) Pushing 'onHeartbeatCallback' on to queue
2020-10-03 17:47:58.981 (Zonnepanelen) Processing 'onHeartbeatCallback' message
2020-10-03 17:47:58.981 (Zonnepanelen) Calling message handler 'onHeartbeat'.
2020-10-03 17:47:58.981 (Zonnepanelen) onHeartbeat
2020-10-03 17:47:58.985 (Zonnepanelen) Connection Exception when trying to contact: 192.168.16.160:502
2020-10-03 17:47:58.985 (Zonnepanelen) Retrying to communicate with inverter after: 2020-10-03 17:49:58.985216 

EDIT2: Forgot to mention that the inverter is a SolarEdge SE4000H and is connected to my network by wire. Installed today and as far as I know no alterations.

Greetz,

Sjonnie

[AddieJanssen]

Running for 2 days now and I am very pleased with this plugin.

I notice something in I can not explain ...
Screenshot 2020-09-30 at 07.13.34.png
Why do these events occur with different users ?
Why are some events caused by "timer" ???

To be honest: I have no idea...
I have not added anything in the plugin to work with users, so this must be one of the nice hidden features of Domoticz.
If time permits, I will try to replicate it on my setup and investigate.

[AddieJanssen]

at least the Temperature, P1 Voltage and Frequency counters work 24/7.

the inverter self does not update the other counters when idle ...

In that case, it is no big deal to run 24/7

It is not a problem to run it 24/7; the plugin will not write any data to the database unless the value has changed.
So during night, lots of devices will not change value at all.
I have put an item on my to do list for this; it makes sense to skip certain devices when the status of the inverter is not "producing".
Will look into it over the next weeks.

[AddieJanssen]

Getting regular the following errors in the log.
What can I do about this?

Code: Select all

2020-10-03 11:58:54.790 Error: (SolarEdge) 'onHeartbeat' failed 'KeyError'.
2020-10-03 11:58:54.790 Error: (SolarEdge) ----> Line 522 in '/home/pi/domoticz/plugins/domoticz-solaredge-modbustcp-plugin/plugin.py', function onHeartbeat
2020-10-03 11:58:54.790 Error: (SolarEdge) ----> Line 335 in '/home/pi/domoticz/plugins/domoticz-solaredge-modbustcp-plugin/plugin.py', function onHeartbeat

Nice!
Looks like your inverter is returning a status that is not supported by the solaredge_modbus library that is used by the plugin.
I will update the plugin to catch the error so we can find out what that status is.
Will get back to you when this is in place.

[AddieJanssen]

Hi,

I installed the script in a somewhat different way than described on github (I missed one line ). I can add the hardware but the devices don't show up. Any help truly appreciated!

EDIT2: Forgot to mention that the inverter is a SolarEdge SE4000H and is connected to my network by wire. Installed today and as far as I know no alterations.

Greetz,

Sjonnie

Hi Sjonnie,

The plugin is not able to connect with your inverter.
This is probably not an issue with your software.
Did you enable Modbus on your inverter and if so: do the ip address and ports match?

[AddieJanssen]

Hi Addie,

Would it also be possible to "fire" the script from a script ?

i.e. I do like "sync" it from my P1 activity.
This to be able to calculate the in house consumption of power.
( yes I know calculating it from an event makes me calculating it 1 sample too late , but I still like this very much )

Hi freijn,

The plugin is not a script, so I don't know if this is possible.
If you are looking for a script, it might be easier to use the solaredge_modbus library itself.
Have a look at the example that the developer provided in his github repo: https://github.com/nmakel/solaredge_mod ... example.py