AutomationIntroduction of Siemens PLCAreejMarch 21, 2018January 20, 2023 by AreejMarch 21, 2018January 20, 202303777 Introduction Siemens makes several PLC product lines in the SIMATIC S7 family. They are: S7-200, S7-300, and S7-400. Siemens Step 7 is a powerful integrated software...