Omron NX Series Hardware User Manual

Indicator Color Status Meaning
SD
BUSY
Yellow Flashing SD Memory Card access in progress.
Not lit. SD Memory Card access not in progress.
*1. Refer to the NJ/NX-series CPU Unit Software User’
s Manual (Cat. No. W501) for details on backing up
data.
Precautions for Safe Use
• Never turn OFF the power supply to the Controller when the BUSY indicator is flashing. While
the BUSY indicator is lit, the user program and settings in the CPU Unit are being backed up
in the built-in non-volatile memory. This data will not be backed up correctly if the power sup-
ply is turned OFF
. Also, a major fault level Controller error will occur the next time you start
operation, and operation will stop.
• Do not turn OFF the power supply or remove the SD Memory Card while SD Memory Card
access is in progress (i.e., while the SD BUSY indicator flashes). Data may become corrupt-
ed, and the Controller will not operate correctly if it uses corrupted data. To remove the SD
Memory Card from the CPU Unit while the power supply is ON, press the SD Memory Card
power supply switch and wait for the SD BUSY indicator and SD PWR indicator to turn OFF
before you remove the SD Memory Card.
You can check the operation status of the CPU Unit with the CPU Unit status indicators (POWER,
RUN, and ERROR indicators).
Refer to the NJ/NX-series Troubleshooting Manual (Cat. No. W503) for the procedures to check the
operation status of the CPU Unit
.
l
Built-in EtherNet/IP (Port 1/Port 2) Status Indicators
These indicators show the operation status of the built-in EtherNet/IP port of the CPU Unit.
The indicator name and other information are the same for port 1 and port 2.
Indicator Color Status Meaning
NET RUN Green Lit. Normal startup status.
Flashing Ethernet communications are in progress.
• T
ag data link connection establishment in progress.
• IP address acquisition with BOOTP in progress.
Not lit. You cannot perform Ethernet communications.
• The power supply is OFF or the CPU Unit was reset.
• A MAC address error or communications Controller error occurred.
NET ERR Red Lit. An error for which the user cannot recover operation occurred.
• A MAC address error or communications Controller error occurred.
Flashing An error for which the user can recover operation occurred.
• An error occurred in TCP/IP communications or CIP communications.
• FTP server setting error, NTP server setting error
, etc.
• Tag data link setting error, tag data link verification error, etc.
Not lit. There are no Ethernet communications errors.
• The power supply is OFF or the CPU Unit was reset.
3 Configuration Units
3-8
NX-series NX502 CPU Unit Hardware User's Manual (W629)

Omron NX Series Specifications

General

Brand	Omron
Model	NX Series
Category	Controller
Language	English