siemens (1)
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Program Structuring Possibilities
Linear Program
Program Partitioned into Areas
Structured Program
Recipe A
OB 1 OB 1
Recipe B
OB 1
Pump
Mixer
Outlet
Outlet
All instructions are
found in one block (usually
in Organization Block OB 1)
The instructions for the individual
functions are found in individual
blocks. OB 1 calls the individual
blocks one after the other.
Reusable functions are loaded into
individual blocks. OB 1 (or other
blocks) call these blocks and pass on
the pertinent data.
SITRAIN
TIA-PRO1 / Introduction TIA Portal Page 20 Siemens AG © 2011
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