1. Presentation On Project Work Automatic bottle filling system using PLC

2. Summary of Presentation
About PLC
Schematic Diagram of Temperature And Level Control
Actual Hardware of our project
Components / Instruments used
PLC programming for this Temperature And Level Control System
Conclusion
Future work
Reference

3. About PLC
Definition
Basic Block Diagram
Features
Language Used

4. PLC Definition
Digital electronics device that use programmable memory to store instruction & to implement specific functions such as logic, sequence, timing, counting arithematic etc to control the m/c & process.

5. Block Diagram of PLC Logic Solver Input Output Module Module
Control V/v
Push button
Contact
Solenoid V/v
From field
Limit Switch
Motor
To field
etc
Fan
Memory Module
etc
Program Loader/
Monitor

6. Features of PLC It is field programmable by the user.
Centralized system, modular
It contains program function like logic timing , counting, arithmetic etc.
It provides checking in a diagnostic manner.
It scan memory, input, output in a deterministic manner.
It can be monitored.

7. Language used for PLC Programming
Ladder
Functional Block Diagram
Statement List

8. The diagram look like a ladder in a way so is called ladder diagram

9. Functional Block Diagram
FBD is a graphical programming language and uses logic boxes familiar from Boolean algebra to represent logic
I0.1
I0.1
Q4.0
I0.2 =

10. Statement List
A I 0.1 A I 0.2 = Q 4.1

11. Schematic Diagram of Temperature And Level Control System

12. Actual Hardware of the Project

13. Components / Instruments used
PLC
Program Loader/ Monitor
DC Motor
Transformer
Relay
Pump
Photoelectric Sensor
Switch
Indicator
Thermostat
Push button
Solenoid Valve
Heater and stirrer
Rectifier

14. PLC Specifications: Make : Siemens Model: S7 300 Digital Input : 16
Digital Output : 16
Analog Input : 4
Analog Output : 4

15. DC Motor Output Power:12 Watt Nominal Voltage:12 & 24 Volt
Nominal Speed up to:4500 rpm

16. Transformer
Step Down Transformer Primary 230 v ac Secondary 0-24 v ac 750 mA

17. Relay
A relay is an electrical switch that opens and closes under the control of another electrical circuit
Specification: 24 V coil 5 Amp 600 ohm

18. Pump
Submersible Pump Specification: Make : China Model: JUGNU HJ- 901 Voltage : V/ 50 Hz Power : 12 w Output: 800L/H

19. Photoelectric Sensor Model CP18D1BAD2, Make : Honeywell
Scan Distance 100 mm
Supply voltage : 0 to 30 v dc
Current consumption <20 mA

20. Switch
Two types: Momentary Push Button Maintained Push Button

21. Indicator
24 V dc

22. Conveyor Arrangement

23. Thermostat .
Differantial linear thermal expansion available from a combination of stem of brass tube(high thermal expansion alloy) and a nickel iron wire (very low thermal expansion alloy) is used to operate a high-precision micro-gap switch.

24. Rectifier
Used for operation of DC motor for conveyor

25. Operation Sequence
By pressing ‘Start’ push button,the process will start.
The sensor 1 will indicate low temperature.this will increase until the high level sensor will senses.
Then the process fluid is filled in the reservoir /process vessel with the help of inlet pump.
Then the sensor 2 will indicate the high level.The pump is stopped when the high level sensor is sensed.
At that time heater and stirring system will start working provided thermostat indicate low temperature. .

26. When the fluid temperature is increased to the high limit,the thermostat will sense it and cut off the system.
After thermostat senses the high temperature,the outlet of the solenoid valve is on.
After releasing all the water from the process vessel through the solenoid valve,the same process will repeat continuosly until it is not stop by ‘stop’ switch.
Fluid inlet,low level of the fluid,high level of the fluid,switching on of heater and fan,thermostat low temperature,fluid outlet indications are given in the announciation panel

27. Programming

28. Programming

29. Programming

30. Programming

31. Conclusion
Progamming Logic Controller is an multiloop control system intensively used in Automotive Industries.
It reduces the manpower and increase the smoothness of the operation.
It improves the quality of the product.
Control the process parameter with better accuracy.

32. Problem Faced
To set the pointer of the level indication system properly.
To connect the dc motor with the fan or stirrer.
Switching time of thermostat
To maintain the thermostat at certain cut off temperature limit.

33. Future Work A limit switch
Automatic pick up of bottle after filling up it.
Lids to be fixed on the mouth of the bottle.
Automatic labeling of bottle.

34. References
1. Richard A. Cox, Technician’s Guide to Programmable Controllers, 4th edition, Vikash Publishing House, New Delhi 2.J. R. Hackworth, F.D. Hackworth, Programmable Logic Controllers– Programming Methods & Applications, Pearson Education, New Delhi 3. J. W. Webb, R A Reis, Programmable Logic Controllers Principle & Applications, 5th edition, Prentice Hall of India ltd., New Delhi