Omron Sysmac NJ-series User Manual page 186

7 Tag Data Link Functions
Precautions for Correct Use Precautions for Correct Use
NX1P2 CPU Unit and an NJ-series CPU Unit
• To specify an I/O memory address for a tag, create a variable with an AT specification of the
I/O memory address on the Sysmac Studio, and then specify the variable with the AT specifi-
cation for the tag.
For an NX1P2 CPU Unit, you need to set CJ memory to use I/O memory address. For details
on CJ memory setting, refer to the NJ/NX-series CPU Unit Software User's Manual (Cat. No.
W501).
• If you enter I/O memory addresses for tag names on the Network Configurator, as shown
below, the tags are directly assigned to the I/O memory addresses in the CPU Unit, and not to
the variables. Always specify variable names for tags.
1) Variable names that contain only single-byte numerals from 0000 to 6143
2) Variable names with the following single-byte letters (uppercase or lowercase) followed by
single-byte numerals
• H (H000 to H511)
• W (w000 to w511)
• D (D00000 to D32767)
• E0_ to E18_ (E0_00000 to E0_32767, to E18_00000 to E18_32767)
You can check the memory address or variable to which a tag is assigned with the icons in the
Edit Tags Dialog Box.
NX701 CPU Unit
• If you apply the notation that specifies the above I/O memory address for a tag name, a Tag
Name Resolution Error occurs. A tag data link will not be started.
6
Input the size of the tag in bytes in the Size Field. Input the tag size so that it is the same as the
data type size of the variable. Select the Use Bit Data Check Box and change the bit size to 1 to
use BOOL variables.
7
Click the Regist Button to register the tag. If an I/O memory address is specified for a tag name,
the Edit Tag Dialog Box is displayed with the next consecutive address as the tag name for the
next tag. After you have registered all of the tags, click the Close Button.
8
Click the Out - Produce Tab, and then click the New Button. The Edit Tag Dialog Box is dis-
played. Input the output tag in the same way. Use the Fault Action setting of the output (pro-
duce) tag to specify whether to clear the output data or continue to send it when a major fault
occurs in the CPU Unit.
7-26
Tag that is directly assigned to an I/O memory address
Tag that is assigned to a variable with a Network Publish attribute
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)