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Industrial Automation
Function Block segmentation
An application program is decomposed into segments ("Programs")
for easier reading, each segment being represented on one (A4) printed page.
• Within a segment, the connections are represented graphically .
• Between the segments, the connections are expressed by signal names .
X1
Segment A
M2 M1
X2
M1
X3
Segment B
Y1
Y2
M2
51/100 2.3 Programmable Logic Controllers