A Python wrapper for the snap7 PLC communication library with easy variable management. This library simplifies reading and writing variables to Siemens PLCs using snap7 by allowing users to define ...

And "-55" of course throws the ValueError. When I run the same query with snap7 ( cpp or plain-c ), I get the correct values on windows and linux. Therefore I guess ...

This article will introduce beginner OT engineers through four essential steps to configure a Programmable Logic Controller (PLC) within a SCADA network and to communicate with the PLC using Python ...