Automation

What is DCS?

2 minutes of reading

Introduction Distributed Control System refers to a control system usually of a manufacturing System, process in which the controller elements are not central in location but are distributed throughout the system with each component sub-system controlled by one or more controllers DCS was introduced in 1975 by: »Honeywell-TDC 2000 »Yokogawa – Centum • Today Centum is Having around 14,000 installations around the world. •Advances in centum: CS1000 and CS3000 •Advances …

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Introduction of Siemens PLC

3 minutes of reading

Introduction  Siemens makes several PLC product lines in the SIMATIC S7 family. They are: S7-200, S7-300, and S7-400. Siemens Step 7 is a powerful integrated software solution for automation, and includes the programming environment for Siemens programmable logic controllers (PLCs). This software provides unique and powerful programming tools with multiple benefits including: creation of re-useable logic, …

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Introduction of Allen Bradley PLC

2 minutes of reading

Introduction  Rockwell Automation traces its history to 1903 and the formation of the Compression Rheostat Company, founded by Lynde Bradley and Dr. Stanton Allen with an initial investment of $1000. In 1904, 19-year-old Harry Bradley joined his brother in the business.Allen Bradley is the brand-name of a line of Factory Automation Equipment manufactured by Rockwell …

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Permissive circuits in PLC

2 minutes of reading

Introduction A practical application of switching and relay logic is in control systems where several process conditions must be met before a computer is allowed to boot.so in this session we are going to discuss about  Permissive circuits in PLC Permissive circuits in PLC A good example of this is the control of the burner for …

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Basics of Relays

3 minutes of reading

INTRODUCTION A relay is an electrically operated switch. Relays are a remote control electrical switch that can be switched using low current to control a high current load.in this session we are going to discuss about basics of relays. PRINCIPLE OF OPERATION Current flowing through the coil of the relay creates a magnetic field which attracts a lever and changes the switch contacts. The coil current can …

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Basics of Load Cell

1 minute of reading

What is a Load Cell?Load cell is a device that converts force in to an electrical signal.A load sensor is a sensor or a transducer that converts a load or force acting on it into an electronic signal.This electronic signal can be a voltage change,current change or frequency change depending on the type of load …

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Basic Concept of PLC (Programmable logic controllers).

1 minute of reading

What is PLC?  PLC is a solid state device which control output device based which control output device based on input device and user developed program. It performs relay equivalent functions.Modern PLCs can perform complex operations like PID control and Analog signal processing.      Advantages of PLC over relay logic. Cost effective. Easy maintenance …

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