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SIMATIC S7 System course part 3 (ST-S7SYS3)


  • This course is intended for participants with technical training and in charge of installation, project execution and commissioning tasks.
  • The knowledge acquired in the ST-S7SYS2 course is expanded to include more complex functions in STEP7. After this module, the participant will be able to use the SIMATIC S7 PLCs even more efficiently.
  • This module can be completed with the customized practical ST-S7PRAC3.
Type Face-to-face training
Duration 3 days
Language mu

Target Group

  • Commissioning and Project Execution


  • Status bit dependent instructions
  • Manipulation and interpretation of accumulators
  • Mathematical operations with floating point numbers
  • Complex parameters e.g. "date-and-time", "string", "pointer" and "any"
  • Indirect addressing and register indirect addressing
  • System functions, overview and use of SFCs
  • Structure and use of libraries
  • Data management with structures, arrays and multidimensional complex data types
  • Overview and use of SFBs for communication e.g. Get/Put and BSEND/BRCV


  • Knowledge in accordance with the ST-S7SYS2 course


  • All topics are explained using exercises with a programming device and a PLC in connection with a conveyor belt as a practice model.
    • Hardware used: S7-300 / S7-400
    • Software used: Step 7 V5.x classic


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