YASKAWA MP2200 User Manual page 160

5.2 User Programs
5.2.2 Ladder Program
[ d ] Drawing Execution Processing Method
The execution processing of hierarchical drawings are performed by calling lower-level drawings from higher-level
drawings.
The following figure shows the execution processing for drawings, using DWG.A as an example.
System programs are started
according to execution conditions.
Parent Drawings
DWG.A
SEE A01
SEE A02
DEND
Note: 1. Parent drawing is automatically called and executed by system. Therefore, you can execute the child
and grandchild drawings by programming a DWG reference command (SEE command) in the parent
and child drawings.
2. Functions can be referenced from any drawing. Functions can also be referenced from other functions.
3. When an operation error occurs, the operation error processing drawing for that drawing will be
started.
5-10
Child Drawings
DWG.A01
SEE A01.01
SEE A01.02
DEND
DWG.A02
System starts
automatically.
Operation
error
DEND
Grandchild Drawings
DWG.A01.01
FUNC-001
DEND
DWG.A01.02
FUNC-001
DEND
DWG.A00
DEND
Functions
FUNC-001
DEND