Omron CJ1W-CORT21 Operation Manual page 76

3 Data Exchange with the CPU Unit
From the user program, the following is used to exchange various types of information:
Data type
Communication Enable, Status, Number
of Delayed Messages
Memory Areas
How to Create Device Variables for CJ-series Unit
Use I/O Map in Sysmac Studio to allocate device variables for CJ-series Unit to an I/O port. Specify
variable names using one of the methods shown below.
1. Select and allocate existing variables.
2. Input a new variable name.
3. Automatically create with "Create Device Variable".
The following shows the structure of a variable name created automatically with method 3.
*_EnblCANComm
For details on device variables for CJ-series Unit, refer to the following:
3-2 Device Variable for CJ-series Unit
In the explanations from here on, the device name automatically created is used as the device variable
name for CJ-series Unit, for example *_EnblCANComm.
For details on the memory for CJ-series Unit, refer to NJ-series CPU Unit Software User's Manual (Cat.
No. W501).
3-6
I/O port, memory used for CJ-series Unit
Operation Data
Send triggers area Any area of CIO, DM, WR, HR and EM
Receive flags area
Output buffers area
Input buffers area
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
This is an I/O port name. The name indicates unit
functions, statuses and parameters.
This is the device name when this unit is registered in
the Unit Configuration. (By default, a device name is
assigned from "J01" in the order of registration in the
Unit Configuration. ) This identifies the individual unit.
Access method
Device variables
for CJ-series Unit
User-defined vari-
ables