YASKAWA SGD7C-***AMAA*** Product Manual page 314

The breakdown of the number of ladder drawings in each category is given in the following
table.
Drawings
Parent Drawings
Operation Error Draw-
ings
Child Drawings
Total of 62 max.
Grandchild Drawings
There are separate functions that can be called from the drawings as required. Functions are
Information
executed when they are called from a parent, child, or grandchild drawing with the FUNC
instruction. You can create up to 2,000 functions.
Controlling the Execution of Drawings
Drawings are executed based on their priorities, as shown in the following figure.
Power ON
DWG.A
( tartup drawing )
Every high- peed can
Batch output
Batch input
DWG.H
(high- peed can proce drawing)
*1.
DWG.A drawings are executed immediately after the power supply is turned ON.
*2.
When an interrupt signal is input, execution of the DWG.I drawing is given priority even if execution of a DWG.H
or DWG.L drawing is currently in progress.
Note: The parent drawing of each drawing is automatically called and executed by the system.
Number of Drawings
DWG.A DWG.I
1 1
1 1
Total of 62 max.
*1
Every low- peed can
Batch output
Batch input
DWG.L
Execution i continued from
(low- peed can proce drawing)
the point before the interrupt.
7.1 User Program Types and Execution Timing
DWG.H
1
1
Total of 998 max.
Interrupt ignal
*2
DWG.I
(interrupt drawing)
7.1.1 Ladder Programs
DWG.L
1
1
Total of 1,998 max.
7-5
7