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

Industrial Automation is really a technique in which we make give human control to machines. In industrial automation machines are programmed to accomplish the tasks which individuals utilized 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 method is increased
Safety of man & devices are increased
More accurate process control
Since human intervention is less so reliability with the system is higher
Systems operate is low energy, more electronic control so equipment every day life is higher
Changes in process logic becomes easier since logics are changed mostly through software

Principal Industrial Automation MNCs


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 utilized to control the method each and every step. Human intervention was there each and every step. Drawbacks were poor output, errors involved with human involvement affected compromised safety, wastage of raw material, and accuracy of human action.

Then came Pneumatic Control: Industrial automation within this era was achieved through invention of pneumatic controllers during the early 1920s. Automation was achieved by controlling air to pneumatic valves, which experts claim were actually switched on/off by relays and switches. They were very bulky and changing from the logic was very complex procedure since a great deal of rework was needed to accomplish change in logic. So time delivered 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. informative post 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 procedure, electronic logic gates were used for achieving logical operations. they replaced switching devices like relays and contactors in the control circuits. Electronic times & counters replaced mechanical timers & counters. Due to using electronics space and requirements reduced, maintenance requirement reduced & systems were more reliable.
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