Pick-and-Place Mechanism using Siemens PLC (Ladder Logic)

Project Description

This project demonstrates a Pick-and-Place Mechanism using Siemens PLC with Ladder Logic, featuring 4 outputs and 8 timers. The system is controlled by a single push button input and is designed to automate a sequence of object handling on a conveyor system, ultimately moving the object to transport. The system runs until a predefined cycle count is reached, after which the process stops.

(Note: Please refer to the PDF provided above, as the image shown below is not clear and may not fully convey the necessary details.)

25.09.2024_11.26.04_REC.mp4

Key Components:

• Single Push Button (I0.0): The only input, responsible for starting and controlling the process.
• Emergency Button (I0.1): Halts all operations immediately when activated.
• 8 Timers: Ensure proper delays at each stage of the process.
• 4 Outputs (Q0.0 to Q0.3): Control different stages of the system.
• Counter: Tracks the number of cycles.
• Equal Comparator: Ensures that the process stops after the set number of cycles.

Process Flow:

1. Push Button Activation:

   • A single push button initiates the entire process.

2. Operations via Outputs:

   • Q0.0: The system senses the object and moves the conveyor belt.
   • Q0.1: The robot arm picks the object from the conveyor belt and places it into the manufacturing process.
   • Q0.3: The robot arm picks the object from the manufacturing line and places it on the output conveyor belt.
   • Q0.3: The conveyor belt senses the object and moves it to transport, completing the process.

3. Timers:

   • T1 to T8: Control various stages of the process, providing appropriate delays for sensing, picking, placing, and transport.

4. Counter and Cycle Termination:

   • A counter counts the number of cycles.
   • Once the counter reaches the specified count, an equal comparator stops the process.

System Components:

• Input:
  • Single Push Button (I0.0)
• Outputs:
  • Q0.0: Controls the conveyor belt and senses the object.
  • Q0.1: Controls the robot arm to pick and place the object into the manufacturing process.
  • Q0.3: Controls the robot arm to place the object onto the output conveyor belt.
  • Q0.3: Senses the object and moves it to transport, completing the process.
• Timers:
  • T1 to T8: Manage different stages of the operation with time delays.
• Counter:
  • C1: Tracks and counts the number of cycles.
• Equal Comparator:
  • Ensures the process stops after reaching the specified cycle count.

How It Works:

1. Push Button Press: Starts the pick-and-place operation.
2. Timers: Ensure delays at each stage—sensing, picking, placing, and transporting.
3. Outputs:
   • Q0.0: Senses and moves the conveyor belt.
   • Q0.1: Picks and places into the manufacturing process.
   • Q0.3: Picks and places the object on the output conveyor belt and moves it to transport.
4. Counter and Equal Comparator: Once the process completes a specified number of cycles, the counter stops the system.

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