Omron CJ1W-EIP21 User Manual

1-11
1 Introduction
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
1-3 EtherNet/IP Unit
1
1-3-2 Part Names and Functions
An EtherNet/IP Unit is equipped with the following indicators that indicate the operating status of the
node itself and the overall network.
 Status Indicators: MS, NS, COMM, 100M, and 10M
The MS (Module Status) indicator indicates the status of the node itself and the NS (Network Status)
indicator indicates the status of the network.
The COMM, 100M, and 10M indicators indicate the status of Ethernet communications.
The MS and NS indicators can be green or red. The COMM, 100M, and 10M indicators are yellow.
These indicators can be lit, flashing, or not lit. The following table shows the meaning of these indi-
cator conditions.
Refer to Section 13 Troubleshooting for details on using these indicators for troubleshooting.
Indicators (LEDs)
Indicator Name Color LED status Indicated operating status
MS Module Status
Red
Lit Fatal error
Flashing Recoverable error
Green Lit Normal
--- Not lit Power supply OFF
NS Network Status
Red
Lit Fatal error
Flashing Recoverable error
Green
Lit Tag data link and message connections established
Flashing Tag data link and message connections not established
--- Not lit Offline or power supply OFF
COMM Communication Yellow
Lit Transferring data
Not lit Not transferring data
100M 100Mbps Yellow
Lit 100BASE-TX link established
Not lit 100BASE-TX link not established
10M 10Mbps Yellow
Lit 10BASE-TX link established
Not lit 10BASE-TX link not established
EIP 21
MS
NS
100M
10M
COMM

Omron CJ1W-EIP21 Specifications

General

Brand	Omron
Model	CJ1W-EIP21
Category	Controller
Language	English