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A programmable logic controller, PLC, or programmable controller is a digital computer used for automation of typically industrial electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures. PLCs are used in many machines, in many industries. PLCs are designed for multiple arrangements of digital and analog inputs and outputs, extended temperature ranges, immunity to electrical noise, and resistance to vibration and impact. Programs to control machine operation are typically stored in battery-backed-up or non-volatile memory. A PLC is an example of a "hard" real-time system since output results must be produced in response to input conditions within a limited time, otherwise unintended operation will result.

Course Details

General - Role and Features and Applications

  • Advantages and Disadvantages
  • Basic Hardware
  • Detail Description
  • H/W such as (CPU I/P O/P P/S Bus & Rack)
  • Signal Flow in PLC Remote I/O
  • Programming languages Scan Cycle
  • Bit Byte Word Double Word
  • Protocol and Baud rate


  • Manufacturer
  • Types + Ranges + Block diagram
  • Protocol I/O Addressing
  • Binary concept
  • Addressing of programming instructions
  • Basic programming symbols & rules
  • Different protocols
  • Different PLC Modules - Pico Micrologix SLC Control Logix.

Switching on PLC software

  • PLC software with emulator
  • Creating new application NO NC O/P Coil
  • Start Stop Hold on latch unlatch
  • Download & Upload

Introduction to hardware

  • Switching on with PLC Hardware
  • Timer- Addressing TT DN Reset& Practice program
  • Counter - Addressing DN Reset & Practice program.
  • Compare Data with Limiter Equal Greater & Less.
  • Mathematical- Add Subtract Multiply Division
  • Subroutine concept- Practice program
  • Jump to subroutine (JSR) & Practice program
  • Analog Scaling Wiring theory
  • Addressing of SCP & Practice program
  • Wiring Theory with PLC manual
  • Sink & Source concept
  • Move Jump - label
  • One shot rising (OSR)
  • Trouble shooting (Faults) using Status file with Math
  • Overflow
  • Use of Binary Force I/O.
  • Documentation- Backup Print & Cross reference

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