Automation Made Easy

• Continuous-Oil Refinery
• Batch-Paint
• Discrete-Manufacturing

Wrapping iron based bar with electrical wire

PLC in 60s

Relay Ladders.

• 1.  flow
• 2.  level
• 3.  pressure
• 4.  temperature

• Valves
• Air dampers
• Motor drives (adjust speed)

Actuator

• 1.  Receive measurement
• 2.  Receive/compare to desired
• 3.  Send signal to valve

• 1.  Pneumatic
• 2.  Electrical analog
• 3.  Digital analog

Service or Hold

Reads result of final product, then adjusts parameter

Reads in process results, then adjusts parameters

ratio of the change in output to the change in input that caused it.  (change voltage by X will improve push test by Y)

time for adjustment to take place

Like a life DOE.  Reading many components of final product, adjusting many parameters.

• DCS for continuous flow (refinery)
• PLC for discrete

Master Terminal Unit - provides overall monitoring for SCADA system

• Vibration
• Bearing Temp
• Oil Temp

• 1.  Break fix
• 2.  Preventive Maint
• 3.  Predictive Maint
• 4.  Reliability Centered Maint-analyze downtime and failure impact to determine controls (sometimes backups)