Omron NX Series User Manual

9-1-3
Tag Data Link Functions and Specifications
The tag data link and performance specifications of the NX-series EtherNet/IP Unit are given below.
Item
Specification
NX-EIP201
Communications type Standard EtherNet/IP implicit communications (connection-type cyclic
communications)
Setting method After you have set tags, tag sets, and connections with the Network Con-
figurator
, you must download tag data link parameters to all devices on
the EtherNet/IP network. After the parameters are downloaded, the
EtherNet/IP Units are restarted to start the tag data links.
Y
ou can export network variables that you created on the Sysmac Studio
to a CSV file.
You can then import the file to the Network Configurator and assign the
network variables to the tags.
Tags
*1
Supported variable types
You can specify the following network variables as tags.
*2
,
*3
• Global variables
Maximum number of
words per tag
722 words (1,444 bytes)
Maximum number of tags 256
(total of 512 with two ports)
Tag sets Maximum number of tags
per tag set
8 (7 when Controller status is included)
Maximum number of
words per tag set
722 words (1,444 bytes)
Maximum number of tag
sets
256 (total of 512 with two ports)
Connection Maximum number of connections per Unit: 512 (256 per port)
Connection type Each connection can be set for 1-to-1 (unicast) or 1-to-N (multicast)
communications.
Packet interval (RPI)
*4
1.0 to 10,000 ms in 1.0-ms increments
The packet interval can be set separately for each connection.
Allowed communications bandwidth
per Unit (pps)
40,000 pps
*5 *6
Note: The heartbeat and the CIP Safety routing are included.
*1. When you specify a specific I/O memory address for a tag, create a variable with an AT specification for the
I/O memory address on the Sysmac Studio, and then specify the variable with the A
T specification for the
tag. Y
ou need to set memory used for CJ-series Unit to use the I/O memory address.
For details on memory settings used for CJ-series Unit, refer to the NJ/NX-series CPU Unit Software User’s
Manual (Cat. No. W501).
*2. You can import network variables created in the Sysmac Studio to the Network Configurator as tags.
If variables for which Network publish attribute is set on the Sysmac Studio contain I/O memory addresses,
such as "0000" and "H0000", they are not exported to CSV files.
*3. The following table lists variables that you can specify as tags.
Data types Example Specification
Variables with basic data types aaa Supported
Enumerated variables bbb Supported
Array variables Arrays ccc Supported
Elements ccc[2] Supported
Structure variables Structures ddd Supported
Members ddd.xxx Supported
9 Tag Data Link Functions
9-6
NX-series EtherNet/IP Unit User's Manual (W627)

Omron NX Series Specifications

General

Programming Languages	Ladder, Structured Text, Function Block Diagram, Sequential Function Chart
Communication Ports	Ethernet, USB, RS-232C, RS-485
Memory Capacity	Varies by model
Program Memory	Varies by model
Data Memory	Varies by model
Operating Temperature	0°C to 55°C
Power Supply	24 VDC
Ethernet Ports	1 or 2 ports (depending on model)
USB Ports	1 or 2 ports (depending on model)
Dimensions	Varies by model
Weight	Varies by model