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What is Industrial Automation & How it Evolved
What is industrial Automation

Industrial Automation can be a technique by which we make give human control to machines. In industrial automation machines are developed to accomplish the tasks which human beings used to achieve. Why it is done? Because of its advantages:

Through Industrial automation we are able to do mass production with less manpower
Quality from the strategy is increased
Safety of person & products are increased
More accurate process control
Since human intervention is less so reliability from the system is higher
Systems operate is low power supply, more electronic control so equipment life is higher
Changes in process logic becomes easier since logics are changed mostly through software

Principal Industrial Automation MNCs

L & T • ALSTOM

Schneider • FESTO

Siemens • Fuji Electric

Allen Bradley • Toshiba

Messung • TATA Honeywell

Modicon • Omron

Mitsubishi • Fanuc

Asia Automation • Delta

How industrial automation control system Evolved?

Initially automation was achieved through manual control, operators used to control the method each and every step. Human intervention was there at each step. Check Out Your URL were poor output, errors linked to human involvement affected compromised safety, wastage of raw material, and accuracy of human action.

Then came Pneumatic Control: Industrial automation in this era was achieved through invention of pneumatic controllers at the begining of 1920s. Automation was achieved by controlling air to pneumatic valves, which often were actually switched on/off by relays and switches. They were very bulky and changing with the logic was very complex procedure since a great deal of rework was forced to accomplish difference in logic. So time taken to complete task changes was very high

Hard wired logic control: contactors, relays (for switching), timers and counters (for timing and counting) were chosen for achieving desired industrial automation. But these systems also resulted into bulky panels. A lot of wiring was involved so time taken to complete task was higher. Defect investigation & troubleshooting was complex.

Electronic Control using Logic Gates: In early 60s electronics dominated the method, electronic logic gates were utilized for achieving logical operations. they replaced switching devices like relays and contactors inside control circuits. Electronic times & counters replaced mechanical timers & counters. Due to utilization of electronics space and requirements reduced, maintenance requirement reduced & systems were more reliable.
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