Number of
Flashes
Indication
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.
Continuous
flashing or solid
The chassis has detected an unrecoverable error. Contact National
Instruments.
Table 3. STATUS LED Indicators
User LED
You can define the USER FPGA1 LED to meet the needs of your application. The
following table lists the USER FPGA1 LED indicators.
LED
LED Color
Description
USER
FPGA1
Green/
Yellow
Use the LabVIEW FPGA Module and NI-RIO Device Drivers software to
define the USER FPGA1 LED. Use the USER FPGA1 LED to help debug
your application or retrieve application status. Refer to the LabVIEW
Help for information about programming this LED.
Table 4. User LEDs
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.
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NI-9146 Safety, Environmental, and Regulatory Information
