3 Part Names and Functions
3 - 4
NX-series Position Interface Units User’s Manual (W524)
TS Indicator
This indicator shows information such as the current status of the Position Interface Unit or of the
network.
The following table lists the possible states for this indicator and what they mean.
Color Status Description
Green Lit • The Unit is operating normally.
• The Unit is ready for I/O refreshing.
• I/O checking is in progress
*1
*1. Refer to the manual for the Communications Coupler Unit for the indicator status of the Communications Cou-
pler Unit when I/O checking is in progress.
Flashing (at 2-s
intervals)
• Initializing
• Restarting is in progress for the Unit.
• Downloading
Flashing (at
0.5-s intervals)
A backup, restore, or compare operation is in progress from the Sysmac Stu-
dio or SD Memory Card.
Red Lit A hardware error, WDT error, or other critical error that is common to all Units
occurred.
Flashing (at 1-s
intervals)
A communications error or other NX bus-related error that is common to all
Units occurred.
--- Not lit • There is insufficient or no Unit power supply.
• Restarting is in progress for the Slave Terminal.
• Waiting for initialization to start