Omron NX Series User Manual

5-2
Network Installation
5-2-1
Basic Installation Precautions
• Take the greatest care when you install the Ethernet System. Be sure to follow ISO 8802-3 specifi-
cations. Be sure you understand them before attempting to install an Ethernet System.
• Unless you are already experienced in installation of communications systems, we strongly recom-
mend that you employ a professional to install your system.
• Do not install Ethernet equipment near sources of noise.
If a noisy environment is unavoidable, take adequate measures against noise interference, such as
installation of network components in metal cases or the use of optical cable in the system.
• When using a shielded cable with the shields on both ends of the cable connected to connector
hoods, ground loops induced by improper grounding methods may decrease noise immunity and
cause device damage. To prevent ground loops caused by differences in potential between device
grounding points, the reference potential between the devices must be stabilized. Design grounding
appropriately so that noise current does not flow to ground lines between the devices.
For grounding methods, refer to the NX-series NX502 CPU Unit Hardware User’s Manual (Cat. No.
W629).
• To obtain information on installing EtherNet/IP cable, contact ODVA.
ODVA web site: http://www.odva.org
• When you install an EtherNet/IP network that combines an information network with the control sys-
tem, and the communications load may be heavy due to tag data links, we recommend that you set
up a network where the load does not affect communications. For example, install the tag data links
in a segment that is separate from the information network.
5-2-2
Recommended Network Devices
Refer to 5-1 Selecting the Network Devices on page 5-2 for the devices recommended for use with the
EtherNet/IP port.
5-2-3
Precautions When Laying Twisted-pair Cable
Connecting the Shield to Connector Hoods
l
Between an EtherNet/IP Port and an Ethernet Switch
Connect the shield to connector hoods as described below.
Communications
standard
Connection
10Base-T
• Connect the shield at both ends
or
• Connect the shield only at the Ethernet switch side. A clamp core must be attach-
ed to the EtherNet/IP port side of the cable.
100Base-TX
1000Base-T Connect the shield at both ends
• 10Base-T or 100Base-TX
5 Installing Ethernet Networks
5-7
NX-series EtherNet/IP Unit User's Manual (W627)
5-2 Network Installation
5
5-2-1 Basic Installation Precautions

Omron NX Series Specifications

General

Brand	Omron
Model	NX Series
Category	Controller
Language	English