Control of typical industrial processes....?

plz explain...


control of typical industrial processes and it's advantage.Control of typical industrial processes....?
...and its advantages?





You'll have to be more specific than that.





Most industrial processes are controlled using PID loops. PID = Proportional / Integral / Derivative. Basically you determine what you call the 'setpoint' (like a temperature setting on a thermostat), and the control algorithm (PID loop) will do all the math in the background to make the system work.





Most 'process' signals are either 0-10V or 4-20mA.





But to learn any more than that you'll need to ask a more specific question.Control of typical industrial processes....?
Adding to Sunset's answer:


Having been in the Chemicals industry, and been around a lot of explosion proof equipment in Class 1 Division 1 Groups C%26amp;D areas, I must add that 3-15 psi is also a common signal.





Uncontrolled processes have a tendency to not work, or even blow up.