| Title |
An Efficient Function of Self Test in PLC Control Designed by SFC |
| Keywords |
Control system ; PLC ; self test ; LD ; SFC |
| Abstract |
When we design the control system used Programmable Logic Controller(PLC), we program the main algorithm by Ladder Diagram(LD) in many standard language. But if we use an Sequential Function Chart(SFC), we is easy to know the sequential flow of control, to maintenance the controller and to describe a program Even though a SFC have many merits, A SFC have some problems like a condition and a function of self test Therefore this thesis show an efficient function of self test and we confirmed its feasibility through actual example. |