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reserve85 / HoymilesZeroExport

Zero Export Script for Hoymiles Inverters using AhoyDTU / OpenDTU and Tasmota Smart Meter inferface / Shelly 3EM / SHRDZM / Emlog / ioBroker
GNU General Public License v3.0
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DDSU666 Smart Meter Support #182

Closed Wind06 closed 4 months ago

Wind06 commented 5 months ago

Hello,

My config is as follow: Raspberry USB to RS485 Converter DDSU666 AhoyDTU

I am trying to integrate this smart meter, but to be honnest I don't know how to proceed. Is this feasible ? can someone help ?

Many thanks

reserve85 commented 5 months ago

Hi, is it possible for you to copy and modify your script like this one: https://github.com/reserve85/HoymilesZeroExport/blob/main/GetPowerFromVictronMultiplus.sh

This is also based on modbus and provides the total power of victron multiplus...

Wind06 commented 5 months ago

Thanks for your answer, let me give a try and I will let you know.

Wind06 commented 5 months ago

Hello, The DDSU666 outputs have a positive power value in case of returning to the grid. is this an issue, or can this be modified in the script, meaning changing the positive value to a négative ?

Thanks,

reserve85 commented 5 months ago

Hi, So it is inverted? Then you´ll need to define that in the custom script (i.e. GetPowerFromDDSU666.sh). Is your external scirpt working?

Wind06 commented 5 months ago

Hi, well I do have some issues with mbpoll command, my script is using pymodbus much easier. Anyway give me sometimes and I will succeed

reserve85 commented 5 months ago

Alright, mbpoll is for command line and pymodbus for python. So these are two different things. Unfortunately I do not have any Modbus devices, so i really can´t help you...

Wind06 commented 5 months ago

Hello,

Well I do have issues with mbpoll communication is not working within my environment. however I succeed with modpoll some more tests required. If I provide a shell with modpoll instead of mbpoll, is that ok ?

otherwise I have to understand way mbpoll is not working for me.

Wind06 commented 5 months ago

Hi, I finally created a python script using pymodbus for the communication. I had communication issues with mbpoll or modpoll. Hope that's not an issue. attached is the script which is working within my environment. I added .txt because I was not able to include .py file directly. I further information requiered let me know. GetPowerFromDDSU666.py.txt

reserve85 commented 5 months ago

perfect, please try this: https://github.com/reserve85/HoymilesZeroExport/tree/dev_DDSU666 i had to make a few adjustments so that there were no compiling errors for me. Can you check it please?

Wind06 commented 5 months ago

Thanks sure I will test it and let you know, however today it’s raining so no overproduction. Tomorrow should be better, I will keep you posted during the weekend. Thanks

reserve85 commented 5 months ago

Ok, but it’s „only“ the Powermeter value, should be independent of the weather…

Wind06 commented 5 months ago

Hello, I do have an error at start attached the log file

avril 26 17:13:52 rpiB3 python3[106265]: 2024-04-26 17:13:52 ERROR Exception at GetPowermeterWatts avril 26 17:13:52 rpiB3 python3[106265]: 2024-04-26 17:13:52 ERROR cannot import name 'ModbusSerialClient' from 'pymodbus.client' (/usr/local/lib/python3.9/dist-packages/pymodbus/client/init.py)

GetPowerFromDDSU666.log

Wind06 commented 5 months ago

Hello, I do have an error at start attached the log file

avril 26 17:13:52 rpiB3 python3[106265]: 2024-04-26 17:13:52 ERROR Exception at GetPowermeterWatts avril 26 17:13:52 rpiB3 python3[106265]: 2024-04-26 17:13:52 ERROR cannot import name 'ModbusSerialClient' from 'pymodbus.client' (/usr/local/lib/python3.9/dist-packages/pymodbus/client/init.py)

GetPowerFromDDSU666.log

I found the issue in the GetPowerFromDDSU666.py you updated the first line " from pymodbus.client import ModbusSerialClient as ModbusClient " maybe a typo I changed it back to " from pymodbus.client.sync import ModbusSerialClient as ModbusClient " not the module is starting correctly.

reserve85 commented 5 months ago

Ok, I think this depends on the version of python? I needed to change that because your import line raised an error at my system… I’ll take a look tomorrow

Wind06 commented 5 months ago

ok perfect, for info python --version Python 3.9.2

reserve85 commented 5 months ago

Which version of pymodbus do you have installed?

pip show pymodbus

Wind06 commented 5 months ago

Name: pymodbus Version: 2.4.0

reserve85 commented 5 months ago

Ok, that’s really old, I think that is the compatibility issue to my code.

Can you try installing a newer version and check my code again?

pip install pymodbus==3.6.8

Wind06 commented 5 months ago

Ok sure, I updated my system, not I do have issues with my script. let me figure this out and will comme back to you asap

reserve85 commented 5 months ago

What error do you get? Perhaps I can help you.

Wind06 commented 5 months ago

Hi, thanks for the offer the issue is on the modbus side because working with version 2.xx and not 3.xx I need to check what has been changed when reading and decoding received values with modbus V3 I will have time to check this tomorrow.

The error I got is the following:

Erreur lors de la lecture des registres: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 4 bytes (0 received)

Wind06 commented 5 months ago

Hi, sorry for my very late answer, I was quite busy today . Anyway, find a .sh script, I finally managed the mbpoll command. I dropped pymodbus because of many changes in between versions. GetPowerFromDDSU666.sh.txt

reserve85 commented 5 months ago

Ok, so this new script is already working with the current main Version of hoymileszeroexport? Then I would add it to the repository?

Wind06 commented 5 months ago

sounds good I will test it and will let you know. thanks

Wind06 commented 5 months ago

I am quite sure that I am doing some stupide things but I get each time an error message [Errno 2] No such file or directory: 'GetPowerFromDDSU666.sh' the script is in the HoymilesZeroExport directory. The GetPowerFromDDSU666.sh script is in the HoymilesZeroExport directory Thanks for and help.

the HoymilesZeroExport_Config_Override.ini

[VERSION] VERSION = 1.91

[SELECT_DTU] USE_AHOY = true

[SELECT_POWERMETER] USE_SCRIPT = true

[AHOY_DTU] AHOY_IP = 192.168.1.42

[SCRIPT] SCRIPT_IP = 77 SCRIPT_FILE = GetPowerFromDDSU666.sh

the log is as below

Log write to file: False Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO Python Version: 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0] Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO Author: Tobias Kraft / Script Version: 1.91 Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO read config file: /home/erik/HoymilesZeroExport/HoymilesZeroExport_Config.ini Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO read additional config file: /home/erik/HoymilesZeroExport/HoymilesZeroExport_Config_Override.ini Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO Config file V 1.91 Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO ---Init--- Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO Ahoy: Current Version: 0.8.83 Apr 29 09:35:47 rpiB3 python3[21703]: 2024-04-29 09:35:47 INFO Ahoy: Inverter "yet unknown" Available: True Apr 29 09:35:48 rpiB3 python3[21703]: 2024-04-29 09:35:48 INFO Ahoy: Inverter "HM800" / serial number "114190556486" / temperature 28.8 degC Apr 29 09:35:48 rpiB3 python3[21703]: 2024-04-29 09:35:48 INFO Ahoy: Inverter "HM800": Turn on Apr 29 09:35:58 rpiB3 python3[21703]: 2024-04-29 09:35:58 INFO setting new limit to 75 Watt Apr 29 09:35:58 rpiB3 python3[21703]: 2024-04-29 09:35:58 INFO Ahoy: Inverter "HM800": setting new limit from -1 Watt to 75 Watt Apr 29 09:35:59 rpiB3 python3[21703]: 2024-04-29 09:35:59 INFO Ahoy: Inverter "HM800": Limit acknowledged Apr 29 09:35:59 rpiB3 python3[21703]: 2024-04-29 09:35:59 INFO intermediate meter AhoyDTU: 72 Watt Apr 29 09:35:59 rpiB3 python3[21703]: 2024-04-29 09:35:59 ERROR Exception at GetPowermeterWatts Apr 29 09:35:59 rpiB3 python3[21703]: 2024-04-29 09:35:59 ERROR [Errno 2] No such file or directory: 'GetPowerFromDDSU666.sh'

reserve85 commented 5 months ago

Can you start the GetPowerFromDDSU666.sh script from the same directory?

Wind06 commented 5 months ago

Yes I can run it and get correct output. Is there a way to track what’s happening, I mean set specific traces.

reserve85 commented 5 months ago

is your file-access missing? can you try setting: sudo chmod +x GetPowerFromDDSU666.sh

reserve85 commented 5 months ago

got it:

[SCRIPT] SCRIPT_IP = 77 SCRIPT_FILE = /home/pi/HoymilesZeroExport/GetPowerFromDDSU666.sh

you need to provide the full path

Wind06 commented 5 months ago

you are right so stupide I am :-(, it's working I did not get the error message. I will continue testing tomorrow.

good night, take care

Wind06 commented 5 months ago

Hello, so I finalised the .sh script

Hope that the process is ok with HoymilesZeroExport, if I am wrong please let me know. I am currently waiting for sunny days to fully test it :-)

reserve85 commented 5 months ago

When it’s working it would be nice from you to create a pull request to add the file to the repository.

Wind06 commented 5 months ago

Sure I will.

Wind06 commented 5 months ago

Script seems to be ok, I created a pull request on the DDSU666 development branch. in case off I attach the script. GetPowerFromDDSU666.sh.txt