YASKAWA JEPMC-MP2300-Y Series User Manual

5
Outline of Motion Control Systems
5.2.1
Ladder Drawings (DWG)
5-6
5.2 User Programs
User programs for executing machine control using the MP2300 include ladder programs and motion
programs. This section describes the basic operation and other information about user programs.

For programming details, refer to the following manuals.
Machine Controller MP900/MP2000 Series User’s Manual Ladder Programming (SIEZ-C887-
1.2

)
Machine Controller MP900/MP2000 Series User’s Manual Motion Programming (SIEZ-C887-
1.3

)
Machine Controller MP900/MP2000 Series New Ladder Editor Programming Manual (SIEZ-C887-
13.1

)
Machine Controller MP900/MP2000 Series New Ladder Editor User’s Manual (SIEZ-C887-
13.2

)
5.2.1 Ladder Drawings (DWG)
Ladder programs are managed in units of ladder drawings, which are identified by drawing numbers.
These drawings form the basis of user programs.
( 1 ) Types of Drawings
Ladder drawings include parent drawings, child drawings, grandchild drawings, and operation error
processing drawings. In addition to drawings, there are functions that can be freely accessed from
each drawing.
• Parent Drawings
Parent drawings are automatically executed by the system program when the execution condi-
tions, outlined in the table below, are met.
• Child Drawings
Child drawings are accessed using a SEE command from a parent drawing.
• Grandchild Drawings
Grandchild drawings are accessed using a SEE command from a child drawing.
• Operation Error Processing Drawings
Operation error processing drawings are automatically executed by the system program
when an operation error occurs.
• Functions
Functions are accessed and executed from parent, child, and grandchild drawings using the
FSTART command.
( 2 ) Drawing Types and Order of Priority
Drawings are classified by their first letter (A, I, H, or L) based on the processing purpose. The fol-
lowing table outlines the order of priority and execution conditions for these drawings.
Type of Parent
Drawing
Function Priority Execution Conditions
Max. No. of
Drawings
DWG.A
(Drawing A)
Startup processing
1
Power ON
(Executed once only, when power turned ON)
64
DWG.I
(Drawing I)
Interrupt processing
2
External interrupt (executed by Option Module
DI interrupt or counter match interrupt)
64
DWG.H
(Drawing H)
High-speed scan
processing
3
Scheduled cycle startup
(Executed each high-speed scan)
200
DWG.L
(Drawing L)
Low-speed scan
4
Scheduled cycle startup (Executed each low-
speed scan)
500

YASKAWA JEPMC-MP2300-Y Series Specifications

General

Brand	YASKAWA
Model	JEPMC-MP2300-Y Series
Category	Controller
Language	English