Execution Control Of Drawings - YASKAWA MP2100 Series User Manual

The following table gives details of the number of drawings for each type of drawing.
Drawing
Parent Drawing
Operation Error
Drawing
Child Drawings
Grandchild
Drawings

6.3.2 Execution Control of Drawings

(1) Execution Control of Drawings
Each drawing is executed based on its priority level, as shown in the diagram below.
During each high-speed scan
All inputs
All outputs
DWG.H
High-speed scan process
drawings
(2) Execution Scheduling of Scan Process Drawings
The scan process drawings are not executed simultaneously. As shown below, they are scheduled based on the
priority level and are executed according to the schedule.
High-speed
scan
DWG.H
DWG.L
∗
Background
* Used for internal system processes, such as communication.
The low-speed scan process is executed in the unused time of the high-speed scan process. Therefore, as a guide-
line, set a time that is twice the execution time of all the DWG.H drawings as the high-speed scan time.
DWG.A
1 (A) 1 (I)
1 (A00) 1 (I00)
Maximum total of Maximum total of
62 drawings 62 drawings
Power ON
DWG.A
Startup drawings
During each low-speed scan
All inputs
All outputs
DWG.L
Low-speed scan process
drawings
Low-speed scan
High-speed
scan
: Executed
Number of Drawings
DWG.I DWG.H
1 (H)
1 (H00)
Maximum total of
198 drawings
Operation error
∗
DWG. X00
Operation error drawings
∗
X:A,I,H,L
Continue with original
process
High-speed High-speed
scan scan
6.3 User Programs
DWG.L
1 (L)
1 (L00)
Maximum total of
498 drawings
Interrupt signal
DWG. I
Interrupt drawings
Continue with original
process
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