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Free PLC Training Courses and Tutorials

Free PLC training courses and articles to learn Programmable Logic Controllers with example ladder logic programs.

Free PLC Training Courses

Free PLC Training Courses and Tutorials

PLC Tutorials

  1. What is a Programmable Logic Controller ?
  2. History of Programmable Logic Controllers (PLC)
  3. Overview of SCADA
  4. Difference between DCS, PLC, and RTU ?
  5. DCS Architecture Vs PLC Architecture
  6. What is a Human-Machine Interface (HMI) ?
  7. Essential Documents in a PLC System
  8. Alarm and Trip Documentation
  9. Basics of Switches – NO/NC Contact
  10. What Sinking & Sourcing ?
  11. Relay circuits
  12. What is Ladder Diagram ?

PLC Programming

  1. Introduction to PLC Ladder Diagrams
  2. PLC Logic Functions
  3. PLC Latching Function
  4. PLC Multiple Outputs Configuration
  5. PLC Program Examples
  6. Equivalent Logic Gates & PLC Ladder Diagrams

PLC Hardware

  1. PLC Input/Output Modules
  2. PLC Digital Input and Output Modules
  3. PLC Ladder Logic: Contacts and coils
  4. PLC Analog I/O and Network I/O
  5. PLC Analog Input Card Resolution Effects on Accuracy
  6. PLC Problems Troubleshooting
  7. PLC Analog Input Conversion Formula
  8. PLC Output Types
  9. PLC Analog I/O Potential Problems

PLC Design

  1. Why Normally Closed Contact For Stop Buttons?
  2. Failsafe Wiring Practices
  3. PLC Sinking & Sourcing Concept
  4. PLC Analog Signals Wiring Techniques
  5. PLC Digital Signals Wiring Techniques
  6. How to Reduce Relay Noise in PLC Systems
  7. Basics of Permissive and Interlock Circuits
  8. Basics of Fail-safe Circuits
  9. What Is Interposing Relay in a PLC System?
  10. Motor Control Circuits

PLC Instructions

  1. Basics of Ladder Diagram in PLC Programming (VIDEO)
  2. PLC Programming languages
  3. Basics of PLC Programming
  4. Mis-conceptions of PLC Ladder Logic
  5. PLC Ladder Logic Example
  6. Free SCADA Software Download
  7. What is Seal-in Circuit ?
  8. PLC Example with Switches
  9. Normally Closed Logic
  10. PLC Counter Instructions
  11. PLC Timer Instructions
  12. PLC Math instructions
  13. PLC Data Comparison Instruction
  14. PLC Memory Mapping & I/O addressing

PLC Automation

  1. How a PLC Reads the Data from Field Transmitters
  2. How PLC Controls an ON/OFF Valve?
  3. How PLC Controls a Motor?
  4. How to Troubleshoot a PLC System
  5. How a PLC do the Scaling for a Sensor?
  6. PLC Analog Input Scaling
  7. PLC Pneumatic Circuit Control

PLC Questions and Answers

  1. PLC Interview Questions and Answers
  2. Industrial Networking & Wireless Interview Questions
  3. PLC/DCS Interview Questions & Answers
  4. Control Room and Field Instruments Questions & Answers
  5. Industrial Automation Engineers Interview Questions
  6. PLC/SCADA Engineers Interview Questions
  7. SCADA Interview Questions & Answers
  8. Siemens PLC Interview Questions & Answers
  9. Allen Bradley PLC Interview Questions & Answers
  10. Programmable Logic Controller Questions & Answers
  11. Industrial Instrumentation Questions & Answers
  12. Ethernet Communication Interview Questions & Answers
  13. Serial Communication Interview Questions & Answers
  14. Modbus Communication Interview Questions & Answers
  15. Fieldbus Communication Interview Questions
  16. OPC Communication Interview Questions & Answers
  17. Control Systems Interview Questions & Answers
  18. Interview Questions on PID Controllers
PLC Training

PLC Example Programs

  1. PLC Program for Mixing Tank
  2. PLC Program for Conveyor Motor
  3. PLC Program for Continuous Filling Operation
  4. PLC Program for Water Level Control
  5. PLC Program for Temperature Control using Thermostat
  6. PLC Program for Motor Starter
  7. PLC Program for Star Delta Motor Starter
  8. PLC Program using START & STOP Buttons
  9. PLC Program using Timers
  10. Allen Bradley PLC Subroutines
  11. PLC Program using Logic GATEs
  12. PLC Program using Counters
  13. PLC Program to Energize & De-energize the Outputs based on Events
  14. PLC Program for Conveyor System
  15. PLC Program for Analog Input Sampling
  16. PLC Program for Conditional Control Logic
  17. PLC Ladder Logic for 3 Phase Asynchronous Motor Control
  18. PLC Program for Latching and unlatching Circuit
  19. PLC Program for Automatic Parameter Initialization when Power UP
  20. PLC Program for Automatic Lamp Control in Storage Facility
  21. PLC Program for Two Way Switch Logic
  22. PLC Program for Sequential Motor Control
  23. PLC Program for Automatic Liquid Mixing Application
  24. PLC Program for Water filling and Discharging Process
  25. PLC Program for Daily Production Record
  26. PLC Program for Automatic Bottle Rejection System
  27. PLC Program for Positive Edge Pulse Output for One Scan Cycle
  28. PLC Program for Alarm Indication in Process
  29. PLC Program for Entry/Exit Control of Car Parking
  30. PLC Program for Alternate Output Circuit
  31. PLC Program for Blinking Lamp on 5 Seconds Interval
  32. PLC Program for IEC timers ( TON, TOF, TP &TONR ) used in S7-1200
  33. PLC Program for Flow Totalizer
  34. PLC Program for Artificial Fishpond Water Level Monitoring System
  35. PLC Program for Burglar Alarm Security System
  36. PLC Program for Automatic Heating and Mixing of Products
  37. PLC Program to Control Level of Parallel Tanks
  38. PLC Program to Control Level of Series Tanks
  39. PLC Program for Control Valve Scaling
  40. PLC Program to Read Temperature in PLC
  41. PLC Program for Counting Moving Objects on Conveyor
  42. Implement SR Flip Flop using PLC Ladder Logic
  43. PLC Program to Drain Same Products from Two Tanks

PLC Programming Questions

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PLC Ladder Logic

Programmable Logic Controller (PLC) Questions and Answers – 1

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