1 Introduction
1-24
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
1
Create and register global variables and each POU.
2
Create algorithm for each POU and register local variables for each POU.
3
Register the Unit in the Unit Configuration on the CPU/Expansion Racks screen in Configuration
and Setup.
Once this Unit is registered in the Unit Configuration, I/O ports are created automatically accord-
ing to this Unit. Also set both the device name and the unit number of the unit to be registered.
4
Allocate device variables for CJ-series Unit to I/O ports.
Allocate on the I/O Map View window.
You can use one of the following three methods to allocate the device variables for CJ-series
Unit.
•
Select and allocate existing variables.
•
Input a new variable name.
•
Automatically create with "Create Device Variable."
Set the Initialization Data of the Unit, such as the Serial Communications Mode and communications
specifications.
Set the initial settings on the Edit Special Unit Settings of Sysmac Studio.
1-8-2
Explanation of Procedure
Procedure 1. Create POU, Global Variables and Unit Configuration
Procedure 2. Create Initialization Data of the Unit