Advanced PLC (IEC61131) Programming
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Advanced PLC (IEC61131) Programming Course
Introduction:
Technological advances in recent years have resulted in the development of the programmable logic controller and a consequential revolution of control engineering. This course is an introduction to programmable logic controllers and aims to ease the tasks of practicing engineers coming first into contact with programmable logic controllers, and as an introduction for first-year undergraduate courses in engineering. The course addresses the problem of different programmable control manufacturers using different nomenclature and program forms by describing the principles involved and illustrating them with examples from a range of manufacturers.
Course Objectives:
This course aims to enable the participant to:
- Identify and explain the main design characteristics, internal architecture, and operating principles of programmable logic controllers.
- Describe and identify the characteristics of commonly used input and output devices.
- Explain the processing of inputs and outputs by PLCs.
- Describe communication links involved with PLC systems, the protocols, and networking methods.
- Develop ladder programs for the logic functions AND, OR, NOR, NAND, NOT, and XOR.
- Develop ladder programs involving internal relays, timers, counters, shift registers, sequencers, and data handling.
- Develop functional block diagram, instruction list, structured text, and sequential function chart programs.
- Identify safety issues with PLC systems.
- Identify methods used for fault diagnosis, testing, and debugging.
Who Should Attend?
Control engineers – Electronic engineers – Instrument engineers – Qualified control supervisors.
Course Outlines:
Programmable logic controllers
- Controllers
- Hardware
- Internal architecture
- PLC systems
- Problems
Input-output devices
- Input devices
- Output devices
- Examples of applications
- Problems
Number systems
- The binary system
- Octal and hexadecimal
- Binary arithmetic
- PLC data
- Problems
I/O processing
- Input/output units
- Signal conditioning
- Remote connections
- Networks
- Processing inputs
- I/O addresses
- Problems
Ladder and functional block programming
- Ladder diagrams
- Logic functions
- Latching
- Multiple outputs
- Entering programs
- Function blocks
- Program examples
- Problems
IL, SFC and ST programming methods
- Instruction lists
- Sequential function charts
- Structured text
- Problems
Internal relays
- Internal relays
- Ladder programs
- Battery-backed relays
- One-shot operation
- Set and reset
- Master control relay
- Problems
Jump and call
- Jump
- Subroutines
- Problems
Timers
- Types of timers
- Programming timers
- Off-delay timers
- Pulse timers
- Programming examples
- Problems
Counters
- Forms of counter
- Programming
- Up and down counting
- Timers with counters
- Sequencer
- Problems
Shift registers
- Shift registers
- Ladder programs
- Problems
Data handling
