The most important aspect of any color industry mixing which is main part which is controlled using PLC. The method that has to be used relies on varied objectives like superior quality, increased efficiency, high profit and other such points depending upon the purpose of the company that implies it. With the prime objective of catering to these necessities and the needs of the industrial sector, significance has been given here to automation.

1. Guided by :- Prof. R. G. Jamkar
By :-
Ajay Taur 2012BIN603
Md. Aakif 2012BIN604
Nikhilesh Vaidya 2012BIN026

2. Content
 Introduction
 Manual Operation of Process
 Drawbacks of Manual Operation
 What is Automation
 PLC
 Automated Process
 Conclusion
 Reference

3. Introduction
 Objective of our project is to make six different colors
by mixing three basic colors in different proportions.
 Three basic colors are Red, Blue & Yellow.
 For each required color, there is a unique ratio
r:b:y.

4. Manual Operation
 Take the certain quantities of basic colors in
predetermined ratio (r:b:y), as per the quantity of final
color required.
 For ex: To obtain 2 liters of Purple color, take 1 liter of
red & blue colors each.
i.e r:b:y = 1:1:0
 Take the basic colors in a mixing vessel and mix them
using a hand operated stirrer until uniform final color
is obtained.

5. Drawbacks of Manual Operation/
Need of Automation
 Precise ratios of three main colors are required to
obtain the desired color.
 Maintaining precise ratio each time is very difficult
and time consuming job.
 This precision can be achieved with automatic
operation of the same mixing machine.

6. What is Automation
 Automation is the delegation of human control
function to technical equipment.
 Automation equipment can make action happen much
faster, more reliably and more consistently than a
human can.
 In this project PLC is used for Automation.

7. Programmable Logic
Controllers(PLC)
 PLC is a digitally operated electronic system which is
used for implementing functions such as logic,
sequencing, timing, counting & arithmetic to control
various machines through digital or analog
input/output modules.
 Programming language : Ladder logic
 Software for Programming:

8. Programmable device
CPUInput
Module
Memory
Power Supply
Output
Module
Sensors
Limit s/w
Press. s/w
Etc.
Control
valves,
Motor
Starter
Etc.
PLC BLOCK DIAGRAM:

10. Automated Process

11. List of Inputs and Outputs to
PLC
Digital Input To PLC
1. Start PB
2. Stop PB
3. Level sensors/switches
4. IR sensor
1.To start the process
2.To stop the process
3.Mixing tank level switch
Storage tanks level switches
4.To detect CAN position on
Conveyor
Digital Outputs from PLC
1. Solenoid Valves
2. Stirrer motor
3. Conveyor motor
1.Red, Blue & Yellow
Cleaning Water

12. Conclusion
 The most important aspect of any color industry
mixing which is main part which is controlled using
PLC. The method that has to be used relies on varied
objectives like superior quality, increased efficiency,
high profit and other such points depending upon the
purpose of the company that implies it. With the
prime objective of catering to these necessities and the
needs of the industrial sector, significance has been
given here to automation.

13. References
 S. T. Sanamdikar and Vartak C., "Color making and
mixing process using PLC," International Journal
of Emerging Trends &Technology in Computer
Science (IJETTCS), Volume 2, Issue5,September–
October2013pp.170-175.
 Allen Bradley. RS Logix 500 User
Manual.Publication 9399- RLD300GR, 1998.