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Programmable logic controller  
 
 

The programmable logic controller is a digital computer used for automatic processes in machinery and small computers with a built-in operating system and these are mainly used in factories or assembly lines. Programmable logic controller process and control implementation that cover everything from test labs, fabrication plants to military and medical electronics to basic data acquisition. Programmable logic controller is designed for multiple inputs and output arrangements, extended temperature ranges, immunity to electrical noise, and resistance to vibration and impact and Programs to control machine operation are typically stored in battery-backed-up or non-volatile memory.

PLCs are industrial computers, and as such their input and output signals are typically 120 volts AC, just like the electromechanical control relays they were designed to replace and although some PLCs have the ability to input and output low-level DC voltage signals of the magnitude used in logic gate circuits.


General Requirements for PLC are

1. Microcontroller

2. Digital to Analog Converter

3. Analog to Digital Converter

4. Isolators

5. Input Amplifier

6. Output Driver

7. Connectivity

8. Power

 

Courses and Eligibility

1. The student must pass higher secondary education or 10+2 with Science subjects to get     admission into a bachelor’s degree program.

2. BE in Electrical and Instrumentation Technology, Electronics and Communication.

3. M. Tech Electrical and Electronics and Communication.

 

Employment

Graduates in this field are employed in manufacturing companies and Industries related to Electrical Components. Graduates are involved in the installation and repair of industrial electronic equipment including I/O networks, data highways, variable speed drives and process control equipment, and to write PLC programs for a wide variety of automated control systems, ranging from simple on-off control systems for robotics and are also involved in the design and implementation of PLC control systems.

 
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