What is industrial Automation

Industrial Automation is a technique through which we make hand over human control to machines. In industrial automation machines are programmed to accomplish the tasks which people used to achieve. Why it is done? Because of its advantages:

Through Industrial automation we will do mass production with less manpower
Quality of the strategy is increased
Safety of individual & tools 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 every day 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 employed to control the method at every step. Human intervention was there at every step. Drawbacks were poor output, errors involved in 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 noisy . 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 of the logic was very complex procedure since plenty of rework was needed to accomplish change 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 used for achieving desired industrial automation. But these systems also resulted into bulky panels. What is Industrial Automation & How it Evolved 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 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 as well as requirements reduced, maintenance requirement reduced & systems were more reliable.