1. Control of Motion On/Off Control (bang-bang) Proportional Control –closed loop –open loop

2. Boolean Arithmetic

3. Digital Logic Expressions When part is ready, cylinder is retracted, and emergency stop is not on, then cut while cylinder is not fully extended and emergency stop is not on.

4. Pneumatic Logic Elements Directional control valve Shuttle valve - OR function Twin pressure valve - AND function Other functions –Check valve –Speed control valve –Time delay valve

5. Pneumatic Schematics

7. Electric Logic Control Input and Output Ladder diagrams Timing diagrams State machines

8. I/O Activity Levels Active High - active level is logic 1 (+V) Active Low - active level is logic 0 (GND)

9. Ladder Diagrams

10. Example - Relay Logic

14. Timing Diagrams

15. State Machines

16. State Diagram

17. Logic Equation and Ladder Diagram

18. Example - Relay Logic

19. Another Example iSENSOR S0 S1 S2 iEXT /iSENSORiRET oCYL=1 oCYL=0

20. Example #2 State Diagram cS0 = cS2/iSENSORiRET + cS0/iSENSOR + /cS0/cS1/cS2 cS1 = cS0iSENSOR + cS1/iEXT cS2 = cS1iEXT + cS2/(/iSENSORiRET) = cS1iEXT + cS2(iSENSOR + /iRET) iSENSOR S0 S1 S2 iEXT /iSENSORiRET oCYL=1 oCYL=0