Siemens SIMATIC S5-115U User Manual page 182

Simatic s5 series cpu 941-7ub11 cpu 942-7ub11 cpu 943-7ub11 and cpu 943-7ub21 cpu 944-7ub11 and cpu 944-7ub21
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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

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