Yaskawa MP2300S Basic Module - Manual (Page 166)

5.2 User Programs
5.2.4 Ladder Drawings (DWG)
5-33
Outline of Motion Control Systems
[ 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.
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.
SEE A01.01
DWG.A01
SEE A01
DWG.A DWG.A01.01
DEND
FUNC-001
DWG.A01.02
DEND
FUNC-001
FUNC-001
DWG.A02
DEND DEND
SEE A01.02
DWG.A00
DEND DEND DEND
SEE A02 System starts
automatically.
Operation
error
Parent Drawings Child Drawings Grandchild Drawings
Functions
System programs are started
according to execution
conditions.