©
National Instruments
15
NI 9146 Operating Instructions and Specifications
STATUS LED
The STATUS LED is off during normal operation. The NI 9146
indicates
specific error conditions by flashing the STATUS LED a certain number of
times every few seconds, as shown in Table 2.
USER FPGA1 LED
You can use the USER FPGA LED to help debug your application or easily
retrieve application status. Use the LabVIEW FPGA Module and NI-RIO
software to define the USER FPGA1 LED to meet the needs of your
application. Refer to
LabVIEW Help
for information about programming
this LED.
Troubleshooting Network Communication
If the NI 9146 cannot communicate with the network, you can perform the
following troubleshooting steps.
1.
Hold the Reset button down for about 5 s, until the Status LED lights
yellow, then release the button. The chassis reboots and the Status LED
starts blinking three times every few seconds. The chassis is now in
Safe Mode.
2.
Repeat step 1. The Status LED repeats the same behavior. The chassis
is now in Safe Mode with IP Reset.
3.
Configure the IP and other network settings in MAX.
4.
Press and release the Reset button to reboot the chassis.
Table 2.
Status LED Indications
Number of Flashes
Every Few Seconds
Indication
2
The chassis
has detected an error in its software. This usually occurs
when an attempt to upgrade the software is interrupted. Reinstall
software on the chassis. Refer to the
Measurement & Automation
Explorer Help
for information about installing software on the chassis.
3
The chassis is in safe mode. Refer to the
Measurement & Automation
Explorer Help
for information about safe mode.
4
The software has crashed twice without rebooting or cycling power
between crashes. This usually occurs when the chassis runs out of
memory. Review your RT VI and check the memory usage. Modify
the VI as necessary to solve the memory usage issue.
Continuously flashing
or solid
The chassis has detected an unrecoverable error. Contact National
Instruments.
