YASKAWA MP3000 Series Setup Manual page 139

4.1 User Program Types and Execution Timing
4.1.1 Ladder Programs
 Execution Processing of Drawings
The drawings are executed by calling them from the top to the bottom, following the hierarchy
of the drawings. The following figure illustrates the execution processing of a high-speed scan
drawing (DWG.H).
Execution is started by the
system program when the
execution condition is met.
Parent Drawing
Note: 1. The parent drawing is automatically called and executed by the system. Child drawings and grandchild
2. You can call functions from any drawing. You can also call functions from other functions.
3. If an operation error occurs, the operation error drawing for the drawing type will be started automatically.
4. Always specify 00 as the drawing number for operation error drawings.
4-6
Child Drawings
DWG.H
DWG.H01
SEE
H01 H01.H01
SEE
H02
An operation
error occurs.
END
drawings are executed by calling them from a parent drawing or a child drawing using the SEE instruction.
Grandchild Drawings
SEE
END
Execution is
automatically
H02
started by the
system.
END
DWG.H01.01
FUNC
01
END
H00
END
Functions
FUNC 01
END