Sequential Function Chart
This chapter provides information for programming in SFC mode.
Chapter Contents
5.1 Step Ladder Instruction [STL], [RET] ...............................................................................5-2
5.2 Sequential
Function
Chart (SFC) ......................................................................................5-2
5.3 The Operation of STL Program .........................................................................................5-4
5.4 Points to Note for Designing a Step Ladder Program ....................................................5-9
5.5 Types
of Sequences ......................................................................................................... 5-11
5.6 IST
Instruction ..................................................................................................................5-22
5 - 1
