10 | ni.com | NI myRIO-1950 User Guide and Specifications
Status LED
The Status LED is off during normal operation. The NI myRIO-1950 runs a power-on self test
(POST) when you apply power to the device. During the POST, the Power and Status LEDs turn
on. When the Status LED turns off, the POST is complete. The NI myRIO-1950 indicates
specific error conditions by flashing the Status LED a certain number of times every few
seconds, as shown in Table 2.
LEDs 0-3
You can use LEDs 0-3 to help debug your application or easily retrieve application status. Logic
TRUE turns an LED on and logic FALSE turns an LED off.
Using the USB Host Port
The NI myRIO-1950 USB host port supports Web cameras that conform to the USB Video
Device Class (UVC) protocol as well as machine vision cameras that conform to the USB3
Vision standard and are USB 2.0 backward compatible. The NI myRIO-1950 USB host port also
supports Basler ace USB3 cameras.
The NI myRIO-1950 USB host port also supports USB Flash drives and USB-to-IDE adapters
formatted with FAT16 and FAT32 file systems. LabVIEW usually maps USB devices to the
/U,
/V, /W, or /X drive, starting with the /U drive if it is available.
Table 2. Status LED Indications
Number of Flashes
Every Few Seconds
Indication
2 The device has detected an error in its software. This usually occurs when
an attempt to upgrade the software is interrupted. Reinstall software on
the device.
3 The device is in safe mode.
4 The software has crashed twice without rebooting or cycling power
between crashes. This usually occurs when the device 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 device has detected an unrecoverable error. Contact National
Instruments.
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