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PROGRAMMABLE LOGIC CONTROLLER
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DI04017031
Code: DI04017031
Credits: 4
Semester 4
PE
Programmable Logic Controller
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Follow on Instagram for UpdatesProgrammable Logic Controller Syllabus — Unit-wise Content
The official GTU curriculum for Programmable Logic Controller (subject code DI04017031) as prescribed for PE · Semester 4 divides the course into 5 units, covering 71 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (DI04017031)Unit 1 Introduction of PLCs.
- 1.1. Introduction of various process control. a) Continuous Process Control. b) Discrete-state Process Control. c) Composite Process Control.
- 1.2. Introduction of PLC.
- 1.3. Architecture of PLC.
- 1.4. Working of PLC.
- 1.5. Selection Criteria of PLC
- 1.6. Application of PLC in the Industry.
- 1.7. Advantages and limitations of PLC.
- 1.8. Need of Automation in Industries.
Unit 2 Peripherals and Interfacing
- 2.1. Peripherals devices of plc, Input Devices: Pushbutton, Limit switch, proximity switch, level switch, and other sensing devices. Output Devices: Relay, solid state relay, contactor, solenoid valve, and other controlling devices.
- 2.2. Ladder logic Symbols of PLC.
- 2.3. Analog Input/output module.
- 1. AC input module
- 2. DC input module
- 2.4. Digital Input/output module. AC Output module DC Output module
- 2.5. PLC Input/output interfacing diagram.
Unit 3 Basic of Programming techniques
- 3.1. Program scan & memory organization. a. PLC operation & program sequence. b. PLC Memory Mapping and I/O addressing for (Allen-Bradley PLC). c. Types of Register use in PLC (Holding, Input, Output register).
- 3.2. PLC Programming Languages. a. Ladder Logic (LAD) b. Functional Block Diagram (FBD) c. Sequential Functional Chart (SFC) d. Structured Text (ST) e. Instruction List (IL)
- 10. 21% GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Instrumentation and Control Engineering Subject Code : DI04017031 Subject Name : Programmable Logic Controller w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 3 of 9
- 3.3. Ladder diagram of all Basic Logic Gates.
- 3.4. Ladder diagram of S-R & J-K flip flop.
- 3.5. Holding (latching relay) contact.
- 3.6. Concept of simple and complex branching in Ladder logic.
- 3.7. Boolean algebra law using ladder language.
Unit 4 Advance Programming functions
- 4.1. ON Delay timer, Off Delay timer, Retentive timer, Non-retentive timer
- 4.2. UP Counter, Down Counter, UP-Down Counter
- 4.3. PLC arithmetic functions. (Addition, Subtraction, Multiplication, Square Root, Division, Negative
- 4.4. PLC comparison function (Equal, Not equal, less than, greater than or equal, limit test function)
- 4.5. Skip, Master Control Relay (MCR), Jump To Lab
- 4.6. Sequencer output (SQO) and Sequencer load (SQL) instruction.
- 4.7. Data handling instructions: Move, Block Move, Table Move, Register Move.
- 4.8. Bit Shift Right and Bit Shift Left function.
Unit 5 Application and Troubleshooting
- 5.1. PLC-based automation system.
- 5.2. High-Low level control of the tank.
- 5.3. LED blinking using various timers.
- 5.4. DC motor control using PLC.
- 5.5. Two-way traffic lights system.
- 5.6. material handling elevator
- 5.7. Troubleshooting procedure of PLC.
- 7. 14% Total 45 100 SUGGESTED PRACTICAL EXERCISES The following practical outcomes (PrOs) that are the sub-components of the COs. Some of the PrOs marked ‘*’ are compulsory, as they are crucial for that particular CO. These PrOs need to be attained at least at the ‘Precision Level’ of Dave’s Taxonomy related to ‘Psychomotor Domain’. Approx. Hrs. required
- 1. Identify continuous, discrete and composite control system. 2* GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Instrumentation and Control Engineering Subject Code : DI04017031 Subject Name : Programmable Logic Controller w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 4 of 9 Approx. Hrs. required
- 2. Identify various modules and component of PLC hardware. 2
- 3. Learn the basics and hardware components of PLC. 4
- 4. Sketch PLC based automation system with example. 2
- 5. Identify various peripherals which are interface with PLC. 2
- 6. Draw basic ladder logic symbols for PLC. 2
- 7. Determine the No. of digital I/O & Analog I/O of given PLC. 1
- 8. Draw wiring Diagrams for Digital Input (DI) and Digital Output (DO) signals for PLC. 2
- 9. Draw wiring Diagrams for Analog Input (AI), and Analog Output (AO) signals for PLC. 2
- 10. Describe the method of program scanning in PLC. 2
- 11. Study Memory Mapping and I/O addressing for PLC. 2*
- 12. Implement a simple ladder logic program using digital inputs and outputs for PLC. 2
- 13. Develop ladder logic to test functionality of basic logic gates. 2
- 14. Develop ladder logic to realize S-R flip-flop 2
- 15. Develop ladder logic to realize J-K flip-flop 2
- 16. Develop ladder diagram to prepare latching relay. 2*
- 17. Draw ladder diagram for given Boolean expression. 2
- 18. Implementation of simple ladder logic program using timer. 1) On delay timer 2) Off delay timer 3) Retentive timer 2*
- 19. Implementation of simple ladder logic program using Counter 1) Up Counter 2) Down Counter 2 GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Instrumentation and Control Engineering Subject Code : DI04017031 Subject Name : Programmable Logic Controller w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 5 of 9 Approx. Hrs. required
- 20. Simulate ladder logic for Industrial application on UP counter. 2
- 21. Simulate ladder logic for Industrial application on Retentive timer. 2
- 22. Simulate Industrial application of Arithmetic Function for plc. 2
- 23. Simulate Industrial application of PLC Data Transfer Functions. 2
- 24. Simulate Industrial application of Comparison Functions. 2*
- 25. Simulate Industrial application of PLC Skip and MCR Functions. 2 26
- 27. Simulate Industrial application of PLC Sequencer Function. 2
- 27. Simulate Industrial application of PLC Shift Register. 2
- 28. Write and implement ladder logic program to blink LED using timer. 2*
- 29. Simulate material handling elevator operation on PLC simulator. Draw connection details for the same process. 2
- 30. Write and implement ladder logic program to on-off the DC motor using PLC 2
- 31. Implement traffic light control system using PLC. 2*
- 32. Simulate Bottle filing process on PLC simulator. Draw connection details for the same process. 2 Total 65 Note i. More Practical Exercises can be designed and offered by the respective course teacher to develop the industry relevant skills/outcomes to match the COs. The above table is only a suggestive list. ii. The following are some sample ‘Process’ and ‘Product’ related skills (more may be added/deleted depending on the course) that occur in the above listed Practical Exercises of this course required which are embedded in the COs and ultimately the competency.. GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Instrumentation and Control Engineering Subject Code : DI04017031 Subject Name : Programmable Logic Controller w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 6 of 9 Sr. No. Sample Performance Indicators for the PrOs Weightage in %
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