Color
Status
Description
Green
Lit
•
The Unit is operating normally.
•
The Unit is ready for I/O refreshing.
•
I/O checking is operating.
*1
Flashing (at 2-s in-
tervals)
•
Initializing
•
Restarting is in progress for the Unit.
•
Downloading
Red
Lit
A hardware failure, WDT error, or other fatal error that is
common to all I/O Units occurred.
Flashing (at 1-s in-
tervals)
A communications error or other NX bus-related error that is
common to all I/O Units occurred.
---
Not lit
•
No Unit power supply
•
Restarting is in progress for the Unit.
•
Waiting for initialization to start
*1. Refer to the manual for the Communications Coupler Unit for the indicator status on the Communications
Coupler Units when I/O checking is in progress.
3-2-2
IN Indicator
This indicator shows the input status of each trigger
input terminal on the High-speed Analog Input Unit.
24 mm width
The following shows an example of trigger input 1. The trigger input number is lit or not lit.
Color
Status
Description
Yellow
Lit
The trigger input corresponding to the number is ON.
---
Not lit
The trigger input corresponding to the number is OFF.
Additional Information
Product models before the appearance change have a square-shaped light-emitter on the left
side of each trigger input number. For details on the applicable models and the changes, refer
to
3-2-3 Appearance Change of the Indicators
Color
Status
Description
Yel-
low
Lit
Trigger input is ON.
---
Not lit
Trigger input is OFF.
3 Part Names and Functions
3 - 4
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)