Omron Sysmac NJ-series User Manual

6 Testing Communications
6-2
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
6-1 Testing Communications
If the basic settings (in particular the IP address and subnet mask) have been made correctly for the
built-in EtherNet/IP port, then it is possible to communicate with nodes on the EtherNet/IP network. This
section describes how to use the PING command to test communications with the built-in EtherNet/IP
port.
The PING command sends an echo request packet to a remote node and receives an echo response
packet to confirm that the remote node communications are normal. The PING command uses the
ICMP echo request and responses. The echo response packet is automatically returned in the ICMP.
The PING command is normally used to check the connections of remote nodes when you set up a net-
work. The built-in EtherNet/ IP port supports both the ICMP echo request and response functions. If the
remote node returns a normal response to the PING command, then the nodes are physically con-
nected correctly and Ethernet node settings are correct.
The built-in EtherNet/IP port automatically returns the echo response packet in response to an echo
request packet sent by another node (e.g., host computer).
6-1-1 PING Command
6-1-2 Using the PING Command
Echo response
Echo request
Remote node
(e.g., host computer)
Built-in EtherNet/IP port
Ethernet
ICMP
IP
UDPTCP

Omron Sysmac NJ-series Specifications

General

Brand	Omron
Model	Sysmac NJ-series
Category	Computer Hardware
Language	English