Shelly PlusPMMini: Tasmota shows always positive power and current values

[lsbbs]

PROBLEM DESCRIPTION

Installed Tasmota 13.3.0 via OTA on two ShellyPMmini to get VA and VAr what the Shelly firmware does not.
Is working so far fine but on one meter I have power import and export. Unfortunate Tasmota is showing always positive values for the current. The Shelly firmware was showing import positive and export negative.

REQUESTED INFORMATION

Make sure your have performed every step and checked the applicable boxes before submitting your issue. Thank you!

• [ x] Read the Contributing Guide and Policy and the Code of Conduct
• [ x] Searched the problem in issues
• [x ] Searched the problem in discussions
• [x ] Searched the problem in the docs
• [x ] Searched the problem in the chat
• [ x] Device used (e.g., Sonoff Basic): Shelly PlusPMMini
• [x ] Tasmota binary firmware version number used: 13.3.0
  • [x ] Pre-compiled
  • Self-compiled
• [x ] Flashing tools used: Firmare upload as .zip
• Provide the output of command: Backlog Template; Module; GPIO 255:

  Configuration output here:
13:47:17.334 MQT: usv-meter/usv-in/RESULT = {"NAME":"Shelly PlusPMMini","GPIO":[576,32,0,4736,0,0,3200,8161,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"FLAG":0,"BASE":1}
13:47:17.560 MQT: usv-meter/usv-in/RESULT = {"Module":{"0":"Shelly PlusPMMini"}}
13:47:17.762 MQT: usv-meter/usv-in/RESULT = {"GPIO0":{"576":"LedLink_i"},"GPIO1":{"32":"Button1"},"GPIO2":{"0":"None"},"GPIO3":{"4736":"ADC Temp1"},"GPIO4":{"0":"None"},"GPIO5":{"0":"None"},"GPIO6":{"3200":"Serial Tx"},"GPIO7":{"8161":"BL0942 Rx2"},"GPIO8":{"0":"None"},"GPIO9":{"0":"None"},"GPIO10":{"0":"None"},"GPIO12":{"0":"None"},"GPIO13":{"0":"None"},"GPIO18":{"0":"None"},"GPIO19":{"0":"None"},"GPIO20":{"0":"None"},"GPIO21":{"0":"None"}}

• If using rules, provide the output of this command: Backlog Rule1; Rule2; Rule3:

  Rules output here:

• Provide the output of this command: Status 0:

  STATUS 0 output here:
13:47:17.334 MQT: usv-meter/usv-in/RESULT = {"NAME":"Shelly PlusPMMini","GPIO":[576,32,0,4736,0,0,3200,8161,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"FLAG":0,"BASE":1}
13:47:17.560 MQT: usv-meter/usv-in/RESULT = {"Module":{"0":"Shelly PlusPMMini"}}
13:47:17.762 MQT: usv-meter/usv-in/RESULT = {"GPIO0":{"576":"LedLink_i"},"GPIO1":{"32":"Button1"},"GPIO2":{"0":"None"},"GPIO3":{"4736":"ADC Temp1"},"GPIO4":{"0":"None"},"GPIO5":{"0":"None"},"GPIO6":{"3200":"Serial Tx"},"GPIO7":{"8161":"BL0942 Rx2"},"GPIO8":{"0":"None"},"GPIO9":{"0":"None"},"GPIO10":{"0":"None"},"GPIO12":{"0":"None"},"GPIO13":{"0":"None"},"GPIO18":{"0":"None"},"GPIO19":{"0":"None"},"GPIO20":{"0":"None"},"GPIO21":{"0":"None"}}

• Set weblog to 4 and then, when you experience your issue, provide the output of the Console log:

  Console output here:

TO REPRODUCE

Steps to reproduce the behavior:

Changing current direction the values remain positive.

EXPECTED BEHAVIOUR

A clear and concise description of what you expected to happen.

Current going from the L to the O terminal should be shown as positive value.
Current going from the O to the L terminal should be shown as negative value.

SCREENSHOTS

If applicable, add screenshots to help explain your problem.

ADDITIONAL CONTEXT

Add any other context about the problem here.

(Please, remember to close the issue when the problem has been addressed)

[arendst]

Pls provide some logging information when export is active. Set weblog 4 for a minute and provide the log like:

18:01:17.851 CMD: weblog 4
18:01:17.852 SRC: WebConsole from 0.0.0.0
18:01:17.853 CMD: Grp 0, Cmd 'WEBLOG', Idx 1, Len 1, Pld 4, Data '4'
18:01:17.856 MQT: stat/plus1pmmini/RESULT = {"WebLog":4}
18:01:17.983 BL9: Rx 55000000AEB430560B000000000000002E4E00220100C0
18:01:18.883 CFG: Saved, Count 495, Bytes 4096
18:01:18.973 BL9: Rx 55000000658130710700000000000000364E000201003D
18:01:19.973 BL9: Rx 55000000F31830E70900000000000000364E00020100A0
18:01:20.980 BL9: Rx 55000000E73B30A00E00000000000000364E00020100CB
18:01:21.978 BL9: Rx 55110000DEC7307F0B00010000000000364E000201005A
18:01:22.982 BL9: Rx 550000001120314F0B00000000000000364E00220100EF
18:01:23.984 BL9: Rx 5500000040BE30450900000000000000364E002201002F
18:01:24.989 BL9: Rx 55000000A43130370B00000000000000364E0022010064
18:01:25.989 BL9: Rx 55000000EF23308A07000000000000003E4E00220100D0
18:01:26.994 BL9: Rx 55000000EA7E309C0A00000000000000364E000201008D
18:01:27.994 BL9: Rx 55000000E8E030080B00000000000000364E00020100C0
18:01:29.000 BL9: Rx 55000000DFBF30160A00000000000000364E00020100DD
18:01:29.018 WIF: Checking connection...
18:01:29.967 BL9: Rx 55000000CEC530DA0800000000000000364E0022010006
18:01:31.005 BL9: Rx 55000000B17D307807000000000000003E4E00220100C6
18:01:32.005 BL9: Rx 55000000487830DA0B000000000000003E4E00220100CE
18:01:33.013 BL9: Rx 550000007F19300A0C000000000000003E4E00220100C5
18:01:34.014 BL9: Rx 55000000C2B230E40B00000000000000364E0022010018
18:01:34.935 CMD: weblog 3

[arendst]

BTW This is the reason why you won't see negative numbers #15374 (comment)

[arendst]

Install latest dev branch and change in template GPIO07 index of BL0942 Rx from 2 to 6

[lsbbs]

Just compiled and installed it.
Active Power Export is now negative.

Apparent Power, Reactive Power still positive.
Power Factor is negative.

[Jason2866]

Is the power factor that horrible too when "consuming" energy?
A power factor of 0.1 should not happen.
Is the device calibrated after Tasmota was installed?

[lsbbs]

This measurements are wrong.
The power factor is 0.95 to 1
But for the moment I am happy with correct active power.

[Jason2866]

Have you fully calibrated the device? Without you will get wrong values.

[lsbbs]

In this special case I made this screenshot a power factor of 0.1 is possible.
On the output of this inverter-charger a solar inverter is connected. From there the power export is coming. And the charger is recharging batteries.
For the Shelly at this moment is visible a 500VA transformer and a very little amount of power coming out.
When the power export is rising and the charger stopping the cos phi is going up to around 0.98