Automatic Bottle Filling System in PLC

Design a PLC ladder logic program for an Automatic Bottle Filling System with the following requirements:

• Conveyor Belt Motor (M1): Moves the bottles into position under the filling nozzle.
• Filling Valve (V1): Opens to fill the bottle when it is in the correct position.
• Start Button (PB_Start): Starts the entire system.
• Stop Button (PB_Stop): Stops the system.
• Bottle Detection Sensor (S1): Detects when a bottle is in the correct position for filling.
• Filling Time: The filling valve must remain open for exactly 5 seconds for each bottle.
• Maximum Bottles: After 10 bottles have been filled, the system should stop automatically.
• Reset Button (PB_Reset): Resets the bottle counter back to zero and restarts the system.

Operational Sequence:

1. Pressing the Start Button starts the conveyor belt (M1).
2. When a bottle is detected by Sensor S1, the conveyor should stop.
3. Valve V1 should open for 5 seconds to fill the bottle.
4. After the bottle is filled, the conveyor should start again, moving the next bottle into position.
5. The system should automatically stop after 10 bottles are filled.
6. Pressing the Reset Button should reset the counter and allow the system to fill another 10 bottles.

Inputs:

• Start Button (PB_Start)
• Stop Button (PB_Stop)
• Reset Button (PB_Reset)
• Bottle Detection Sensor (S1)

Outputs:

• Conveyor Belt Motor (M1)
• Filling Valve (V1)