polyphase-meter

This project enables to read data from the polyphase meter LK13BE by Logarex

What is polyphase-meter?

polyphase-meter allows anybody to read data from a polyphase meter LK13BE built by Logarex.

What is needed to start using polyphase-meter?

You will need PHP 7.4, Composer and a clone from this repository, and of course an IR reader.

How to run polyphase-meter?

0. Connect the IR reader to your LK13BE and the USB plug to your computing device. Adding udev rules is advisable, but out of scope of this readme.
1. Let us assume that data from the IR reader is available from /dev/ttyUSB0.
2. Clone this reposistory via git clone https://github.com/stefan-loewe/polyphase-meter.git.
3. Change to the root folder of the checkout via cd polyphase-meter.
4. run php composer.phar update && php composer.phar dump to fetch dependencies and create autoload files.
5. Initialize the connection to the IR reader stty -F /dev/ttyUSB0 1:0:8bd:0:3:1c:7f:15:4:5:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0 2>/dev/null.
6. Run php src/demo.php.
7. Output similar to the below should be printed:

raw data: /LOG5LK13BE803049

1-0:96.1.0*255(001LOG0064800017)
1-0:1.8.0*255(000000.4392*kWh)
1-0:1.8.1*255(000000.0000*kWh)
1-0:1.8.2*255(000000.4392*kWh)
1-0:2.8.0*255(000000.8322*kWh)
1-0:16.7.0*255(000000*W)
1-0:32.7.0*255(000.0*V)
1-0:52.7.0*255(000.0*V)
1-0:72.7.0*255(229.9*V)
1-0:31.7.0*255(000.00*A)
1-0:51.7.0*255(000.00*A)
1-0:71.7.0*255(000.03*A)
1-0:81.7.1*255(000*deg)
1-0:81.7.2*255(000*deg)
1-0:81.7.4*255(000*deg)
1-0:81.7.15*255(000*deg)
1-0:81.7.26*255(000*deg)
1-0:14.7.0*255(49.9*Hz)
1-0:1.8.0*96(00000.0*kWh)
1-0:1.8.0*97(00000.0*kWh)
1-0:1.8.0*98(00000.0*kWh)
1-0:1.8.0*99(00000.0*kWh)
1-0:1.8.0*100(00000.4*kWh)
1-0:0.2.0*255(ver.03,EF8C,20170504)
1-0:96.90.2*255(0C69)
1-0:97.97.0*255(00000000)
!
/LOG5LK13BE803049

Further information

• Manual for the LK13BE
• Technical documentation of LK13BE
• Das volkszaehler Projekt und dessen Wiki
• My blog post in the photovoltaikforum

Thanks

• Der Karl where I got a few insights. However, that solution only seems to work for the polyphase meter LK13BD by Logarex.
• KorbinianP on which my solution is based, by migrating his shell script to PHP.