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7 Tag Data Link Functions
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
7-2 Setting Tag Data Links
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7-2-5 Connection Settings
The settings are as follows:
2
After you make all of the settings, click the OK Button.
Setting Description
Target Device Select the target device.
Connection Name Any name can be given to the connection (32 single-byte characters max.).
If this field is left blank, a default name is assigned. The connection name is
used as a comment.
Connection I/O Type Select InputOnly (tag type) to use tag data links with a CJ1W-EIP21(CJ2),
CJ1W-EIP21(NJ), NX701, NX1P2, NJ501-, NJ301-, or
NJ101. When you create tag data links for other devices, select the connec-
tion I/O type specified in that device’s EDS file. Use the Input Only (ID type)
setting when another company’s node is the originator and does not support
connection settings with a Tag type setting.
In/Out The connections I/O is automatically displayed based on the selected con-
nection.
• Input Only: Just In is displayed.
Target Variable Select the target node’s tag set to assign it.
• In: Select the target’s output (produce) tag set.
• Out: Select the target’s input (consume) tag set.
Originator Variable Select the originator node’s tag set to assign it.
• In: Select the originator’s input (consume) tag set.
• Out: Select the originator’s output (produce) tag set.
Connection Type Select whether the data is sent in multi-cast or unicast (point-to-point) form.
The default setting is multi-cast.
• Multi-cast connection: Select when the same data is shared by multi-
ple nodes. This setting is usually used.
• Point-to-point connection: Select when the same data is not shared by
multiple nodes. In a unicast connection, other
nodes are not burdened with an unnecessary
load.
Note Refer to 7-1-4 Overview of Operation for details on using multi-cast and
unicast connections, and counting the number of connections.
RPI Set the data update cycle (i.e., the packet interval) of each connection
between the originator and target. The default setting is 50 ms (i.e., data is
updated once every 50 ms).
• NX701 CPU Unit:
Set the RPI to between 0.5 and 10,000 ms in 0.5-ms increments.
• NX1P2 CPU Unit:
Set the RPI to between 2 and 10,000 ms in 1-ms increments.
• NJ-series CPU Unit:
For unit version 1.03 or later, set the RPI to between 1 and 10,000 ms in 1-
ms increments.
For unit version 1.02 or earlier, set the RPI to between 10 and 10,000 ms in
1-ms increments.
Timeout Value Set the time until a connection timeout is detected. The timeout value is set
as a multiple of the packet interval (RPI) and can be set to 4, 8, 16, 32, 64,
128, 256, or 512 times the packet interval. The default setting is 4 times the
packet interval (RPI).
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