====== Sprachen ======
Ladder Diagram / Kontaktplan

Die Anweisungsliste, meist kurz AWL oder IL (Instruction List) genannt, 

engl. Structured Text, Abkürzung: ST in Siemens S7 auch engl. Structured Control Language, Abkürzung SCL



====== Links  Pure ======

https://sourceforge.net/p/plcemu/wiki/Home/

https://linux.softpedia.com/get/System/Emulators/awlsim-96563.shtml#sgal_0

https://github.com/Vignesh2208/PLCNet

https://pypi.org/project/SimPyLC/

https://www.openplcproject.com/plcopen-editor/

https://de.wikipedia.org/wiki/Regelungstechnik

https://de.wikipedia.org/wiki/Anweisungsliste

===== Links interfacing with Artduino and Co =====
https://maker.wiznet.io/2014/11/20/arduino-uno-r3-ethernet-shield-siemens-s7-1200-plc/#details


http://snap7.sourceforge.net/

https://support.industry.siemens.com/tf/ww/en/posts/iot-sending-json-data-to-server-from-s7-1500/180817

https://forum.arduino.cc/t/settimino-ethernet-library-to-communicate-with-s7-siemens-plc/195024/5

https://support.industry.siemens.com/tf/ww/en/posts/iot-sending-json-data-to-server-from-s7-1500/180817

https://www.instructables.com/ARDUINO-HACK-PLC-SIEMENS-THROUGH-LANWIFI-INDUSTRIA/