Q.bloxx (Classic) Diagnostic LED Codes

This article provides details about the diagnostic LED codes for Q.bloxx modules.

A Q.bloxx module has 3 LEDs (1 blue and 2 red). Depending on the failure state of the module, the behavior of the flashing LEDs can be differentiated.

1. Two LEDs are flashing approximately 20 Hz. The 3rd LED flashes within 1 second; and displays the error code number.
   1. APP Failure: Blue and Red1 are fast, and Red2 shows the error code:
      1. 1: Wrong module type in the calibration file
      2. 2: Wrong FPGA version number
      3. 3: DIP switch failure (timeout)
      4. 4: Socket EE failure (timeout)
   2. OS Failure: Blue and Red2 are fast, and Red1 shows the error code:
      1. 1: Wrong module type in the calibration file
      2. 2: Wrong FPGA version number (not supported)
      3. 3: Application software is missing
      4. 4: FPGA software not available
2. The module is running in the OS software.
   1. OS failure code from above → application is missing
   2. This is also shown while the application is downloaded
3. All 3 x LEDs flash together: Morse code SOS
   1. Module types detected in the socket and in the module configuration file are not the same. This stops when the next configuration is downloaded.
   2. ***-- -- --*** ***-- -- --*** ***-- -- --***
4. Running LEDs
   1. During an FPGA or OS download, the module changes into configuration mode, and a restart is needed to get into normal measure mode again.
      1. Blue → Red1 → Red2 → Blue → Red1 → Red2 → Blue → Red1 → Red2
   2. Active when a download of FPGA or APP is initiated in the OS. It should never be active when the system is running at the customer.
      1. Red2 → Red1 → Blue → Red2 → Red1 → Blue → Red2 → Red1 → Blue
5. Only Blue LED
   1. Configuration mode timeout → DSP communication lost
      1. ** ** ** ** **
   2. Data exchange mode timeout → FPGA communication lost
      1. * * * * *
   3. Continuously blue, no flashing → No communication timeout, normal operation in the application software
6. Only Red (error) LEDs
   1. Analog modules: Range error is active at the connector in front of the LED (can be enabled or disabled).
7. Only Orange (digital I/Os) LEDs
   1. Digital modules: The LED behind the digital input or output shows that it is active.