Foxmere Technologies

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S7-200 PLC Level 1


Course Outline

Upon completion of the course the student should:

  • Be able to recognise S7-200 hardware and be able to replace modules when a fault occurs.
  • Be able to operate the S7-200 software to make it perform certain tasks.
  • Understand basic S7-200 instruction set and be able to make minor modifications to software.
  • Be able to backup and restore a PLC program when required.
  • Be able to perform basic system diagnostics when a problem occurs.

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Equipment per Delegate

  • Siemens S7-200 PLC.
  • PC or laptop.
  • Simulator.

Course Content

To fault find a system you need to know exactly how it works.

How exactly does a PLC work?

  • The LED on the output card means I am getting voltage out right?
  • What exactly happens in-between? Theres more than just a program in the CPU.
  • How exactly does it scan the program?
  • What is this Watchdog Timer? Is it that important?
  • Can I use the same output twice? That's bad programming isn't it?
  • A PLC is a logic controller, so use a logical approach to fault find it.
  • What are the 8 simple test points to check?
  • What is the difference between forcing and toggling?

How do I do the following?

  • S7 family hardware (basic specifications).
  • Basic hardware troubleshooting.
  • Theory of operation.
  • IO addressing.
  • Understanding program notation I, Q, T, C, V, L, etc.
  • S7 user interface.
  • Setting up a project.
  • Hardware configuration.
  • Program representation (LAD, FBD, STL).
  • Program structure and logic block types.
  • Basic instruction set (timers, counters, flip-flops).
  • Local and global variables.
  • Data types and parameter types.
  • Data blocks.
  • Establishing online connections.
  • Upload and download projects.
  • Diagnostic functions (module information / diagnose hardware).
  • Program monitoring.
  • Using cross reference function to aid fault finding.
  • Searching for specific operands and instructions.
  • Monitor and modify variables.
  • Rewire function.
  • Program documentation (symbols, comments).
  • Printing cross reference / program listings, etc.


Provisional bookings can be made via email, phone or letter. Confirmation in writing with a purchase order number is required four weeks prior to the course start date.

Dates may be offered to other customers after this date.

Joining instructions are sent out approximately two weeks prior to the course start date.

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Course Times

Typical course times are 09:00 to 16:30. Alternative arrangements can be made for customised and on-site courses.


A light lunch will be provided when training at our in-house facility.

Payment and Cancellations

Fees are based upon payment being made to confirm course booking. Should you be unable to meet these terms please advise us as we will be able to re-quote on your payment terms.

Prices are quoted exclusive of VAT. New Customers are required to pay pro forma.

Requests for cancellation must be made via email or letter. Cancellation charges may apply.

Course Specifics


Siemens S7-200


MicroWin v4.0


2 days

Max. Delegates



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