7 Tag Data Link Functions
7-6
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
The tag data link and performance specifications of the NJ/NX-series CPU Unit are given below.
*1 To specify a specific I/O memory address for a tag, create a variable, use an AT specification of the I/O mem-
ory address on the Sysmac Studio, and then specify the variable with the AT specification for the tag. (This
applies only for the NJ-series CPU Units.) 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 Man-
ual (Cat. No. W501).
*2 You can import network variables created in the Sysmac Studio to the Network Configurator as tags.
However, variables with a Network Publish attribute that have variable names that are the same as the I/O
memory address notation, such as “0000” and “H0000” are not exported to CSV files.
7-1-3 Tag Data Link Functions and Specifications
Item
Specification
NX701-
NX1P2-
NJ501-/NJ301-
/NJ101-
Unit version 1.10
or later
Unit version
1.13 or later
Unit version
1.00 to 1.02
Unit version
1.03 or later
Communications type Standard EtherNet/IP implicit communications (connection-type cyclic commu-
nications)
Setting method After you have set the tags, tag sets, and connections with the Network Config-
urator, you must download the 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.
You can export the 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 tags.
Tag s
*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 (1444
bytes)
300 words (600 bytes)
Maximum number of
tags
256 (total of 512
with two ports)
256
*4
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 (1444
bytes)
300 words (600 bytes)
Maximum number of tag
sets
256 (total of 512
with two ports)
32
Connections Maximum number
of connections per
unit: 256
(total of 512 with
two ports)
Maximum number of connections per Unit: 32
Connection type Each connection can be set for 1-to-1 (unicast) or 1-to-N (multi-cast) communi-
cations.
Packet interval (RPI) 0.5 to 10,000 ms in
0.5-ms increments
2 to 10,000 ms in
1-ms increments
10 to 10,000 ms
in 1-ms incre-
ments
1 to 10,000 ms in
1-ms increments
The packet interval can be set separately for each connection.
Permissible communications band (pps) 40,000 pps *5 3,000 pps 1,000 pps 3,000 pps
Note The heartbeat is included.
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