Yaskawa MP900 Series Ladder Programming Manual Manual de usuario Pagina 19

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1.2 Features of Ladder Programming for MP2000-series Machine Controllers
1.2.2 Program Modules
1-4
1.2.2 Program Modules
The main program can be separated into modular units to suit different processing requirements, such as child draw-
ings, grandchild drawings, and functions, to make the program easier to read.
1.2.3 Programming Complicated Numeric Operations
Complicated calculations written over several lines can be written easily within a single EXPRESSION instruction.
Variables, structures, and basic functions, such as those for sine and cosine calculations, can be programmed using
familiar C-like expressions.
You can display the current value inside expressions in the same way as you can for other ladder language instructions.
H: Main program
H: Main program
# Automatic operation processing
# Manual operation processing
c
# Difference numeric processing
# Manual operation processing
d
# Difference numeric processing
END
Automatic operation
processing drawing
Modularization
SEE instruction
Manual operation
processing
c
drawing
SEE instruction
FUNC
instruction
SEE instruction
FUNC
instruction
Difference numeric
processing function
Manual operation
processing
d
drawing
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