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S5-115U Manual
8
STEP 5 Operations
The STEP 5 programming language has the following three operation types:
•
Basic Operations include functions that can be executed in organization, program, sequence,
and function blocks. Except for the addition (+F), subtraction (-F), and organizational
operations, the basic operations can be input and output in the statement list (STL), control
system flowchart (CSF), or ladder diagram (LAD) methods of representation.
•
Supplementary Operations include complex functions such as substitution statements, test
functions, and shift and conversion operations.
They can be input and output in STL form only.
•
System Operations access the operating system directly. Only an experienced programmer
should use them.
System operations can be input and output in STL form only.
8.1
Basic Operations
Sections 8.1.1 through 8.1.9 describe the basic operations.
EWA 4NEB 811 6130-02b
STEP 5 Operations
8-1
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