Programming a Programmable Logic Controler (PLC)
Programming a Programmable Logic Controler (PLC)
Programming a Programmable Logic Controler (PLC)
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
STD, easy example<br />
SFC versus STD<br />
0<br />
Human Detected<br />
1 Open door<br />
2<br />
Door Open<br />
Door Closed<br />
Wait 2s<br />
SFC<br />
Close door<br />
• Equalities/Differences?<br />
• Actors/Sensors?<br />
0 Door Closed<br />
1 Door Opening<br />
2 Door Open<br />
3 Door Closing<br />
? Condition (C)<br />
! Action (A)<br />
C: Human Detected<br />
A: PC > Work Position<br />
C: Door Open<br />
A: Wait 2s<br />
C: 2s waited<br />
A: PC > Basic Position<br />
C: Door Closed<br />
STD<br />
C: Condition PC: Pneumatic Cylinder<br />
A: Action
Change language