YASDI Python Wrapper

This is a simple python 3.x wrapper for SMA's 'YASDI' (aka Yet Another SMA Data Implementation).

SMAData1 (version 1, short SD1) is the name of the protocol SMA used with (older) string inverters. It can still be used in modern inverters (in 2023) with a RS485 data module if needed.

YASDI does not implement the modern communication protocol SMAData2+ (version 2+, short SD2+) which is used in all modern SMA inverters and devices with ethernet (IP network).

Get latest YASDI source code, compile and install it

Get the source directly from SMA Solar Technology AG or my server www.heiko-pruessing.de.

Bash> unzip yasdi-1.8.1build9-src.zip -d YASDI
Bash> cd YASDI/projects/generic-cmake
Bash> mkdir build-gcc
Bash> cd build-gcc
Bash> cmake ..
Bash> make
Bash> sudo make install    
Bash> sudo ldconfig

Init YASDI Python Wrapper

Install all deps:

make init

Edit YASDI configuration file

Edit the file yasdi.ini as needed and test it with

yasdishell ./yasdi.ini

Run Unit Tests

The unit tests can be started with:

make test

Start the Sample Demon

make demon

The sample demon searches for all connected devices (inverters) and starts data query with most important measurement values. It creates a data file which contains all requested data:

ChannelName;ChannelUnit;ValueTimestamp;ChannelValue
Pac;kW;1700388485;2.3
E-Total;kWh;1700388485;2746876.4