Graphic representation of
sequential controls
GRAPH 5 /4/ is a programming language for graphic representation of
sequential controls. It is at a higher level than the LAD, CSF, STL
methods of representation. A program written in GRAPH 5 as a
graphic representation is automatically converted to a STEP 5
program by the PG.
2.1.2
Structured Programming Using STEP 5, you can structure your program by dividing it into
self-contained program sections (blocks). This division of your
program clarifies the essential program structures making it easy to
recognize the system parts that are related within the software.
Ladder diagram
Statement list
Control system flowchart
Programming with
graphic symbols
like a circuit diagram
Programming with
graphic symbols
IEC 117-15
DIN 40700
DIN 40719
DIN 19239
DIN 19239 DIN 19239
STL CSFLAD
A
AN
A
ON
O
=
&
> = 1
I
I
I
I
I
Q
Programming with
mnemonic abbreviations
of function designations
complies with complies with complies with
Fig. 2-1 Methods of representation in the STEP 5 programming language
STEP 5 Programming Language
CPU 948 Programming Guide
C79000-G8576-C848-04
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