Omron NJ Series User Manual page 38

1 Introduction
 Network Management with an SNMP Manager
The SNMP agent passes internal status information from the built-in EtherNet/IP port to network
management software that uses an SNMP manager.
*1. A separate SNMP manager is necessary for network management.
 Complete Troubleshooting Functions
A variety of functions are provided to quickly identify and handle errors.
• Self-diagnosis at startup
• Event log that records the time of occurrence and other error details
 Two EtherNet/IP Communications Ports as a Standard Feature, Equipped
with IP Routing Function (Only with the NX701 and NX102 CPU Units)
These CPU Units are equipped with two EtherNet/IP ports for EtherNet/IP communications as
standard.
This feature allows you to separate the information network from the control network. In addition,
the built-in EtherNet/IP ports support the IP routing function to send IP packets to devices on other
IP network segments.
*1. In order to use the function, you must appropriately set the IP router table and default gateway settings for
each device on the network according to your network configuration. For details on the settings, refer to
5-1 TCP/IP Settings Display on page 5-2.
 CIP Safety on EtherNet/IP Compatible
Combined with the NX-SL5£££ Safety Control Unit, you can build a system which uses CIP
Safety on EtherNet/IP communications in networks between Controllers and field networks. Safety
communications by CIP Safety is enabled with devices that support CIP Safety on EtherNet/IP and
other Safety CPU Units.
Additional Information
CIP (Common Industrial Protocol)
CIP is a shared industrial protocol for the OSI application layer. The CIP is used in networks
such as EtherNet/IP, CompoNet, and DeviceNet.
Data can be routed easily between networks that are based on the CIP. You can therefore easi-
ly configure a transparent network from the field device level to the host level.
The CIP has the following advantages.
• Destination nodes are specified by a relative path, without fixed routing tables.
• The CIP uses the producer/consumer model. Nodes in the network are arranged on the same
level and it is possible to communicate with required devices whenever it is necessary.
The consumer node will receive data sent from a producer node when the connection ID in
the packet indicates that the node requires the data. Because the producer can send the
same data with the same characteristics in a multicast format, the time required for the trans-
fer is fixed and not dependent on the number of consumer nodes. (Either multicast or unicast
can be selected.)
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NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)