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1.INTRODUCTION
We have influenced the recent technological advances that have enabled distributed control systems to be implemented via networks in our contribution. The defining feature of a Networked Control System (NCS) is that control and feedback signals are exchanged among the system's components in the form of information packages through a network
The most important feature of a NCS is that it connects cyberspace to physical space thus, enabling execution of several tasks from long distance. In addition, networked control systems eliminate unnecessary wiring thus, reducing the complexity and the overall cost in designing and implementing the control systems.
The potential applications are numerous and cover a wide range of industries such as: space and terrestrial exploration, access in hazardous environments, factory automation, remote diagnostics and troubleshooting, experimental facilities, domestic robots, aircraft, automobiles, manufacturing plant monitoring, nursing homes and tele-operations.
1.1. COMPANY PERSPECTIVE
This endeavor is to be implemented in the campus of BHARAT HEAVY ELECTRICALS Ltd (BHEL), Trichy. In this the various parameters of the entire machinery can be controlled through a single server as well as from the client. Since the TCP/IP protocol is used, it is a connection oriented service. The man power is reduced and by this implementation, accuracy is highly enhanced.
In BHEL, there are various Computerized Numerical Controllers (CNC) which is to be controlled by an individual for every operation. CNC’s are categorized into various types depending on their functions. By our realization, the various operations of the single CNC and also at the same time many CNC’s are monitored and controlled.
1.2. MANIFESTATION PERSPECTIVE
In our demonstration, we have provided the replica of the CNC control.
We have considered the following parameters,
 Speed & Position (Depending parameters).
 Temperature & Pressure (Non-depending parameters).
The speed parameter is influenced and controlled through PWM circuits where as the direction of rotation is managed by motor drivers and then we have used sensors for non-depending parameters. The controlling unit of the circuit is carried out by PIC microcontroller. Liquid Crystal Display is used to denote the digital values of non-depending parameters.
CHAPTER-2
EXISTING SYSTEM
2. EXISTING SYSTEM
Existing system is the human dependent system. CNC is made to perform certain tasks through a control unit called a PLC and the PLC achieves the destination of the work piece through the Part Program. In addition to this, the various depending and non-depending parameters of the entire CNC are to be monitored and maintained ideally for the perfect job completion. For all these activities each machine needs a human to perform.
Disadvantages of Current System:
 The main and foremost disadvantage is that it is an open loop system.
 Each machine needs man power to perform their functions perfectly.
 No proper acknowledgement received.
 Quantization noise is not eliminated effectively.
 It is a complex system.
CHAPTER-3
ANTICIPATED SYSTEM
3. ANTICIPATED SYSTEM
3.1. PROPOSAL IN THE CAMPUS OF BHEL
The Proposed System is the realization of Networked Control System (NCS) in Computerized Numerical Controllers (CNC) i.e. NCS in CNC’s. The operations and parameters of the entire machinery is monitored and controlled by a single server and at the same time many types of machinery are taken into account for monitoring and controlling, there by, this system reduces the inclusion of high manpower resource.
Each group of machines is headed by an individual client and these clients are organized by a single server. In this, the implementation of TCP/IP plays a premium role in the transfer of datas. Since this protocol is connection- oriented, the acknowledgement is received properly and the accuracy is highly enhanced.
The part programming, controlling of the dependant and non-dependant parameters and the error rectification can be made by means of this system in a simple way, there by the performance and production is increased.
3.2. PROPOSAL IN OUR VENTURE
In our implementation, we have used a simple demonstration by employing motors and sensors. The speed and position control are being carried out using motors, the temperature and pressure monitoring is carried out using sensors.
The increasing and decreasing of the speed as well as the direction of rotation of the motor can be performed by giving simple commands from server or client. Similarly the movement and position of the tool can also be performed.
3.3. ASSESMENT
ROOT PROJECT CORRELATED IDEA
 CNC machine  DC motor.
 Programmable Logic Control  PIC Microcontroller
(PLC) (PIC18F2220)
 Alpha Numeric Codes  Embedded C
 Both depending and  Depending:
Non-depending parameters speed & position
of entire plant is controlled. Non-depending:
Temperature & pressure