Obtain individual inverter information in a 3 phase installation

[alpujarra]

Dear all:

First of all I would like to thank you for the great work done in this repo and for putting this magnificent tool within everyone's reach.

I have an installation of 3 Axpert MKS inverter configured in a 3-phased way. The inverter number 1 is the one who is receiving the solar input and it is where I have connected my raspberry pi. Currently I am obtaing the aggregated information of all three with the QPIGS command,

I would like to know if it is possible to obtain the individual information of each inverter. I have tried out the QPGS and QP2GS commands but the answer is always "CRITICAL:MPP-Solar:Command not found".

Thank you very much for your help.

Best regards.

Francisco

[jblance]

There are different protocols for different versions of inverter. The QP2GS command is in the LV5048 command set (add -M L:5048 to the command to use it) Better is to check the protocol with the QPI command.

Does QPGS1 command give results? Note both QPGS and QP2GS require a number at the end (its the inverter number and normally counts from 0)

[alpujarra]

Hi John, thank you for your quick answer.

The answer to the QPI command is the following: protocol_id PI30

I obtain also an answer to the QPGS1 command.

fran@Valor:~ $ sudo mpp-solar -d /dev/hidraw0 -c QPGS1 ac_output_active_power 67 W ac_output_apparent_power 115 VA ac_output_frequency 49.99 Hz ac_output_voltage 230.1 V battery_capacity 50 % battery_charging_current 0 A battery_discharge_current 1 A battery_voltage 49.7 V charger_source_priority Solar + Utility fault_code No fault
grid_frequency 0.0 Hz grid_voltage 0.0 V is_ac_charging 0 True - 1/False - 0 is_battery_over_voltage 0 True - 1/False - 0 is_battery_under_voltage 0 True - 1/False - 0 is_configuration_changed 0 True - 1/False - 0 is_line_lost 1 True - 1/False - 0 is_load_on 1 True - 1/False - 0 is_scc_charging 0 True - 1/False - 0 is_scc_ok 0 True - 1/False - 0 load_percentage 2 % max_ac_charger_current 30 A max_charger_current 30 A max_charger_range 140 A output_mode Phase 2 of 3 phase output parallel_instance_number valid
pv_input_current 0 A pv_input_voltage 0.0 V serial_number 92931803100929
total_ac_output_apparent_power 299 VA total_ac_output_percentage 1 % total_charging_current 15 A total_output_active_power 188 W work_mode Battery Mode

Thanks a lot for you help.

Francisco

[jblance]

Good news, in case you haven't already realized it QPGS2 will likely give you the 3rd phase inverter details

[alpujarra]

Yes, you are right. With QPGS"x" command I am able to obtain the information of each individual inverter using the appropiate value of "x": 0 - For inverter 1 1- For inverter 2 2 - For inverter 3

However I am afraid that I have not configured in the right way the mpp-solar service to get the statistics of each inverter. The "mpp-solar.conf" file that I am using is the following one: [SETUP] pause=5 mqtt_broker=127.0.0.1

[Aggregated_All_Inverter_Info] model=standard port=/dev/hidraw0 baud=2400 command=QPIGS tag=Aggregated format=influx2

[Inverter1] model=standard port=/dev/hidraw0 baud=2400 command=QPIGS0 tag=Inverter1 format=influx2

[Inverter2] model=standard port=/dev/hidraw0 baud=2400 command=QPIGS1 tag=Inverter2 format=influx2

[Inverter3] model=standard port=/dev/hidraw0 baud=2400 command=QPIGS2 tag=Inverter3 format=influx2

In Graphana I am able to see the different tags "Inverter" but with no data.

Can you help me to identify what I am doing wrong?

Thank you very much.

Francisco

[jblance]

Well first off the inverter1 - 3 commands are incorrect (you have QPIGS1 instead of QPGS1) Other problems are difficult to see from just the conf file

• what is the service status results?
• try subscribing to the mqtt broker in a command window and see what is getting published
• what is telegraf service status
• what is in the influxdb

[alpujarra]

Again you are right. The commands were wrong. Sorry for that.

I have review the points you mention in your previous answer. Here are the results.

The mpp-solar service is ok and working without errors. I have subscribed to the mqtt broker using the following command sudo mosquitto_sub -h localhost -v -t "mpp-solar" and I have only seen message from the "Aggregated" command but not for the other ones (Inverter1, Inverter2 and Inverter3). I suppose that this is the reason because I didn't see any data in Graphana related to Inveter commands but I don't know how to fix it.

The telegraph service is also running and there is only a warning message "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable."

The influx db is also working.

I hope I provide you enough information to help me.

Thanks again for your help.

Francisco

[jblance]

Please provide the logs from the mpp-solar service

[jblance]

Also restart the service and supply the startup logs

[alpujarra]

I attached the log file. mppsolar.log

I have also restarted de service: fran@Valor:~ $ systemctl --user restart mpp-solar fran@Valor:~ $ systemctl --user status mpp-solar ● mpp-solar.service - MPP Solar Service Loaded: loaded (/etc/systemd/user/mpp-solar.service; enabled; vendor preset: enabled) Active: active (running) since Sat 2020-08-01 03:29:13 CEST; 13s ago Main PID: 902 (python3) CGroup: /user.slice/user-1001.slice/user@1001.service/mpp-solar.service └─902 /usr/bin/python3 /usr/local/bin/mpp-solar-service -c /etc/mpp-solar/mpp-solar.conf

I attach also the logs after restarting the process. mppsolar_restarted.log

Thanks for your help.

Francisco

[jblance]

Can you re post the configuration file Does the mppsolar command on the command line work without sudo?

[alpujarra]

Hi again. Here is the configuration file:

mpp-solar.conf.txt

The mppsolar command does not work without sudo in the command line.

Don't heasitate to ask me any other information.

Have a nice day.

Francisco

[jblance]

Config still has the wrong commands in it You need to either get the mppsolar command working without sudo (as in the docs somewhere) or to move the service to be a system service (not in the docs but covered in the original source which is linked in the docs)

(Sorry on my phone so can't easily be more specifc)

[alpujarra]

Hi John, the problem is already solved. I updated the commands in the config file. In addition I have solved also the problem with the execution with sudo. Now all is working.

Thank you so much for your help.

Francisco

[jblance]

Great news Glad it works for you

Cheers John