Particularly when using an Ethernet switch that does not support multi-cast filtering, the settings must
be made considering that multi-cast packets will be sent even to nodes without connection settings.
Additional Information
If the connection type is set to
Multi-cast connection
in the connection settings of the CIP
Safety or the tag data links, multi-cast packets are used. If the connection type is set to
Point to
Point connection
, multi-cast packets are not used.
In addition, if the required CIP Safety performance or tag data link performance cannot be achieved
within the specifications, reevaluate the overall network configuration and correct it by taking steps
such as selecting a different Ethernet switch or splitting the network.
The following sections show how to check the device bandwidth to be used for the CIP Safety routings
and the tag data links in the designed network, and how to change the values.
Additional Information
In order to provide stable communications, the connection settings need to be adjusted so that
the total device bandwidth usage of tag data links and the CIP Safety routing will not exceed
80%.
9-1-1
Checking Bandwidth Usage for Tag Data Links
The Network Configurator can display the bandwidth actually used for tag data links at each built-in
EtherNet/IP port, based on the connections set in the network configuration.
The device bandwidth used by tag data links can be checked by clicking the
Detail
Button in the
Usage of Device Bandwidth
Area at the bottom of the Network Configuration Pane.
Item
Description
#
The IP address of the device
Comment
A description of the device. The comment is displayed below the device icon.
The model number of the device is displayed by default.
9 Communications Load
9 - 3
NX-series Safety Control Unit User's Manual (Z930)
9-1
Adjusting the Communications Load
9
9-1-1
Checking Bandwidth Usage for T
ag Data Links
Summary of Contents for NX-SIH400
Page 4: ...Introduction 2 NX series Safety Control Unit User s Manual Z930 ...
Page 46: ...Revision History 44 NX series Safety Control Unit User s Manual Z930 ...
Page 108: ...2 Specifications 2 42 NX series Safety Control Unit User s Manual Z930 ...
Page 132: ...3 Installation and Wiring 3 24 NX series Safety Control Unit User s Manual Z930 ...
Page 148: ...4 Safety Control Unit Operation 4 16 NX series Safety Control Unit User s Manual Z930 ...
Page 216: ...5 System Configuration and Setup 5 44 NX series Safety Control Unit User s Manual Z930 ...
Page 306: ...6 Programming 6 90 NX series Safety Control Unit User s Manual Z930 ...
Page 390: ...8 Calculating Safety Reaction Times 8 12 NX series Safety Control Unit User s Manual Z930 ...
Page 412: ...11 Safety Data Logging 11 10 NX series Safety Control Unit User s Manual Z930 ...
Page 504: ...12 Troubleshooting 12 92 NX series Safety Control Unit User s Manual Z930 ...
Page 554: ...l I O Map Settings Appendices A 42 NX series Safety Control Unit User s Manual Z930 ...
Page 623: ...I Index I 1 NX series Safety Control Unit User s Manual Z930 I ...
Page 625: ......