1-3-2
Procedure Details
STEP1. Software Design
Step Description Reference
Step 1-1
Designing I/O and
Processing
• External I/O devices and Unit configuration
• Refresh periods for external devices
• Program contents
NJ/NX-series CPU Unit
Software User’
s Manual
(Cat. No. W501)
Step 1-2
Designing Tasks
• Task configuration
• Relationship between tasks and programs
• T
ask periods
• Slave, NX Unit, and X Bus Unit refresh cycles
• Exclusive control methods for variables between tasks
NJ/NX-series CPU Unit
Software User’s Manual
(Cat. No. W501)
Step 1-3
Designing Programs
POU (Program Organi-
zation Unit) Design
• Programs
• Functions and function blocks
• Determining the algorithm languages
NJ/NX-series CPU Unit
Software User’
s Manual
(Cat. No. W501)
Variable Design
• Defining variables that you can use in more than one POU
and variables that you use in only specific POUs
• Defining the variables names for the device variables that
you use to access slaves, NX Units, and X Bus Units
• Defining the attributes of variables, such as the Name and
Retain attributes
• Designing the data types of variables
NJ/NX-series CPU Unit
Software User’
s Manual
(Cat. No. W501)
STEP2. Software Setups and Programming
Step Description Sysmac Studio
Operations
Reference
Project Creation
1. Create a project in the Sysmac Stu-
dio.
2. Select a Controller.
Select New Project
Select the device in
the Project Proper-
ties Dialog Box
Sysmac Studio Version 1
Operation Manual (Cat. No.
W504)
The following Controller Configurations and Setup and the Programming and Task Settings can be performed in either or-
der
.
Step 2-1
Slave, NX Unit, and X
Bus Unit Configura-
tions
1 Introduction to NX-series Controllers
1-16
NX-series NX502 CPU Unit Hardware User's Manual (W629)