Learning Outcomes:

• Develop PLC programs to solve industrial process problems.
• Analyze alternative programmable control devices in industrial settings.
• Demonstrate proficiency in PLC programming and simulation software.
• Review and assess different programmable control devices.
• Utilize test and debug software to rectify PLC program faults.
• Explore advanced PLC functions for practical applications.

Introduction: Programmable Logic Controllers (PLCs) have revolutionized industrial automation, offering adaptability and efficiency. This unit focuses on enhancing students` PLC programming skills and exploring alternative control devices, covering interface methods, signal processing, programming, and device selection.

Task 1:

• Differentiate between microcontrollers and microprocessors.
• Specify control device requirements for mining automation.

Task 2:

• Develop ladder logic for generating 1-second pulse outputs using pulse timer blocks.
• Extend pulse generation logic using multiple timer blocks.
• Document program components (inputs, outputs, labels, descriptions, addresses, timers, memory locations) and provide testing screenshots.

Task 3:

• Identify challenges of using embedded systems and alternative devices in manufacturing.
• Evaluate the suitability of alternative programmable devices for industrial applications.

Task 4:

• Design ladder logic for a shop entrance counter using an S7 1200 Siemens PLC.
• Implement advanced functions (Equal, Not Equal, Greater or Equal, Less or Equal, Greater Than, Less Than, In Range, Out of Range) to manage shop capacity.

This unit provides hands-on experience in PLC programming and analysis of alternative control devices for industrial use.