Learn more about the LEDs for your cRIO-905x.
The following table describes the POWER LED indicators.
|Solid||The cRIO-905x is powered on.|
|Off||The cRIO-905x is powered off.|
For more information about connecting the cRIO-905x to power, refer to Connecting the Controller to Power.
The following table describes the STATUS LED indicators.
|Blinks twice and pauses||The cRIO-905x is in safe mode. Software is not installed, which is the factory default state, or software has been improperly installed on the cRIO-905x. An error can occur when an attempt to upgrade the software is interrupted. Reinstall software on the cRIO-905x. Refer to Installing Software on the Controller for information about installing software on the cRIO-905x.|
|Blinks three times and pauses||The cRIO-905x is in user-directed safe mode, or the cRIO-905x is in install mode to indicate that software is currently being installed. This pattern may also indicate that the user has forced the cRIO-905x to boot into safe mode by pressing the reset button for longer than five seconds or by enabling safe mode in MAX. Refer to the Measurement & Automation Explorer (MAX) Help for information about safe mode.|
|Blinks four times and pauses||The cRIO-905x is in safe mode. The software has crashed twice without rebooting or cycling power between crashes.|
|Continuously blinks||The cRIO-905x has not booted into NI Linux Real-Time. The cRIO-905x either booted into an unsupported operating system, was interrupted during the boot process, or detected an unrecoverable software error. If the problem persists, contact NI for support.|
|On momentarily||The cRIO-905x is booting. No action required.|
|Off||The cRIO-905x is in run mode. Software is installed and the operating system is running.|
You can define the behavior of the USER1 LED and the USER FPGA1 LED to meet the needs of your application.
Use LabVIEW Real-Time to define the USER1 LED with the RT LEDs VI. For more information about the RT LEDs VI, refer to the LabVIEW Help.
|USER FPGA1||Green||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.|
The cRIO-905x has a SD In Use LED to indicate the card drive mount status. The following table lists details of the SD In Use LED indicator.
|Solid||A microSD card is present and mounted.|
|Off||No microSD card is present.|
The following table lists the Ethernet LED indicators.
|LED||LED Color||LED Pattern||Indication|
|ACT/LINK||—||Off||LAN link not established|
|Green||Solid||LAN link established|
|Flashing||Activity on LAN|
|10/100/1000||Yellow||Solid||1,000 Mb/s data rate selected|
|Green||Solid||100 Mb/s data rate selected|
|—||Off||10 Mb/s data rate selected|