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PROJECT DESCRIPTION

The analysis carried out in this project highlights the concepts, working, advantages and practical applications of programmable logic controllers, along with a comparison with other control systems for industrial automation in repetitive nature of work. This operation is generally used for repetitive nature of work

The main objective of the project is to design a programmable sequential switching of any load using embedded system based microcontroller concept. It uses microcontroller from the 8051 family, which is of 8-bit. The development of this application requires the configuration of microcontroller architecture - that is, the selection of the machines, and writing debugging of the application program. In this project, the clock plays an important role, wherein it is used in these modes: the set mode, auto mode and manual mode for controlling different machines.

 In the set mode - through the inbuilt digital clock - the machinery runs based on the 'On' or 'Off' and on time, whereas in an auto mode,  it runs through default settings; and, finally in the manual mode, the real-time systems used extensively in the industrial control applications can run depending on the user’s need and flexibility. The power supply consists of a step- down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter, and it is then regulated to +5V using a voltage regulator 7805, which is required for the operation of the microcontroller and other components.

By adopting this project cost can be reduced as the tasks performed by the costly PLCs will be more when compare to the microcontroller methods. Furthermore, the project can be enhanced by interfacing it with a GSM modem, wherein - by sending an SMS to the control system – we can select the mode and timing remotely.

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The analysis carried out in this project highlights the concepts, working, advantages and practical applications of programmable logic controllers, along with a comparison with other control systems for industrial automation in repetitive nature of work. This operation is generally used for repetitive nature of work

The main objective of the project is to design a programmable sequential switching of any load using embedded system based microcontroller concept. It uses microcontroller from the 8051 family, which is of 8-bit. The development of this application requires the configuration of microcontroller architecture - that is, the selection of the machines, and writing debugging of the application program. In this project, the clock plays an important role, wherein it is used in these modes: the set mode, auto mode and manual mode for controlling different machines.

 In the set mode - through the inbuilt digital clock - the machinery runs based on the 'On' or 'Off' and on time, whereas in an auto mode,  it runs through default settings; and, finally in the manual mode, the real-time systems used extensively in the industrial control applications can run depending on the user’s need and flexibility. The power supply consists of a step- down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter, and it is then regulated to +5V using a voltage regulator 7805, which is required for the operation of the microcontroller and other components.

By adopting this project cost can be reduced as the tasks performed by the costly PLCs will be more when compare to the microcontroller methods. Furthermore, the project can be enhanced by interfacing it with a GSM modem, wherein - by sending an SMS to the control system – we can select the mode and timing remotely.

PROJECT HIGHLIGHTS
Multi-Mode Programmable Load Switching.
Call/mail for Tech Support from 10 am - 7 pm IST.
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
×
Multi-Mode Programmable Load Switching.
Call/mail for Tech Support from 10 am - 7 pm IST.
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
BLOCK DIAGRAM
Hardware Requirements
  • 8051 series Microcontroller
  • LCD
  • Relay Driver
  • Relays
  • Resistors
  • Capacitors
  • LEDs
  • Crystal
  • Diodes
  • Transformer
  • Voltage Regulator
  • Push Buttons
  • Lamps
×
  • 8051 series Microcontroller
  • LCD
  • Relay Driver
  • Relays
  • Resistors
  • Capacitors
  • LEDs
  • Crystal
  • Diodes
  • Transformer
  • Voltage Regulator
  • Push Buttons
  • Lamps
Software Requirements
  • Keil compiler
  • Language: Embedded C or Assembly.
×
  • Keil compiler
  • Language: Embedded C or Assembly.
Q & A
Q:  Which microcontroller is used in this project?
A:  A 40 pin microcontroller from 8051 family is used in this project.
Q:  What is programmable sequential switching?
A:  This project is designed to switch on the loads sequentially upon programmable time intervals
Q:  What are the modes in this project?
A:  There are 3 modes- Automatic mode (Switching loads for programmed time period), Manual mode (manually switching loads) and Set mode (manually setting the load switching time).
Q:  Can we place a direct load other than the lamp?
A:  Yes, one can place a direct load, but up to 200W .
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