Introduction to STEP 5
Figure 7-4 shows how to set up a structured control program. It also illustrates the significance of
organization blocks.
System program
7-10
OB21/OB22
OB1
PB1
FB2
Control program
Figure 7-4. Example of Organization Block Use
S5-115U Manual
SB1
FB200
EWA 4NEB 811 6130-02b