Startup error codes and LED flash sequences on IO cards:
The IO card status LED will be lit (red) during card initialization and self-test (constant red for 3-15 seconds).
If the initialization and self-test are successful, the LED will be dark, and stays dark during normal operation.
If initialization or self-test fails, the LED will flash quickly, indicating the type of error that occurred.
The error code can be used to diagnose the problem further.
The flash sequence is repeated 3 times (3 sequences of N flashes).
Depending on the nature of the error, the system may then reset the card and retry initialization.
| Number of flashes | Error type | Comment |
| 1 | Card load error | Defect card |
| 2 | Register bus failure | Defect card |
| 3 | Self-test fail | Defect card |
| 4 | Card Information invalid | Defect or incompatible card inserted |
| 6 | Internal initialization fail | Defect card or system |
| 8 | License error | System is not licensed for the number of I/O cards |
==Detailed error codes==
Detailed Error Codes can be found in Debug Message viewerÂ
The first digit in the error code corresponds to the number of flashes:
| Error code | Error | Comment |
| -11 | Failed to load FPGA | Replace card or check slot |
| -12 | Failed to load FPGA | Replace card or check slot |
| -13 | Failed to load FPGA | Replace card or check slot |
| -20 | Register bus calibration failed | Replace card or check slot |
| -21 | Register bus verification failed | Replace card or check slot |
| -30 | Self-test error: Register write failed | Replace card |
| -31 | Self-test error: Register read/write failed | Replace card |
| -32 | Self-test error: Card memory test failed | Replace card |
| -33 | Self-test error: Card memory size check failed | Replace card |
| -34 | Self-test error: Byte lane check failed | Replace card |
| -35 | Self-test error: Write mask check failed | Replace card |
| -36 | Self-test error: Allocation failed | Replace card |
| -37 | Self-test error: FPGA ID check failed | Replace card |
| -40 | Failed to read Card Information Structure | Replace card or check slot |
| -41 | Card Information Structure is invalid/corrupt | Replace card |
| -42 | Incorrect version of Card Information Structure | Replace card or update software |
| -43 | Unknown card type | Check software version |
| -60 | Internal error: Initialization failed | |
| -61 | Internal error: First time initialization failed | |
| -62 | Internal error: Monitoring subsystem failed to initialize | |
| -63 | Internal error: Failed to allocate application components | |
| -64 | Internal error: Failed to initalize application | |
| -80 | Max number of input cards exceeded | Update license or remove card |
| -81 | Max number of output cards exceeded | Update license or remove card |