Siemens SIMATIC S5-95F, Manual

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Introduction to STEP 5 S5-95F
Figure 7-4 shows how to set up a structured control program. It also illustrates the significance of
organization blocks.
Figure 7-4. Example of Organization Block Use
FB61 FB2
OB1
OB21/OB22
System Program
PB1 SB1
Control Program
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7-10
EWA 4NEB 812 6210-02