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What is industrial Automation
Industrial Automation is often a technique in which we make hand over human control to machines. In industrial automation machines are designed to accomplish the tasks which human beings employed 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 technique is increased
Safety of person & equipment is increased
More accurate process control
Since human intervention is less so reliability in the system is higher
Systems operate is low power source, more electronic control so equipment life's 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 employed to control the procedure each and every step. Human intervention was there at every step. Drawbacks were substandard quality output, errors involved with human involvement affected compromised safety, wastage of raw material, and accuracy of human action.
Then came Pneumatic Control: Industrial automation with this era was achieved through invention of pneumatic controllers noisy . 1920s. Automation was achieved by controlling air to pneumatic valves, which were actually switched on/off by relays and switches. They were very bulky and changing from the logic was very complex procedure since plenty of rework was needed to accomplish difference 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. A lot of wiring was involved so time taken up complete task was higher. go to my site & 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 within the control circuits. Electronic times & counters replaced mechanical timers & counters. Due to utilization of electronics space and energy requirements reduced, maintenance requirement reduced & systems were more reliable.
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