Solution
You can find information about the LED lights and other information about your device in the
NI-XNET Hardware and Software Manual NI-XNET one and two-port boards include two LEDs per port to help you monitor hardware and bus status. LED 1 primarily indicates whether the hardware is currently in use. LED 2 primarily indicates the activity information of the connected bus. Each LED can display two colors (red or green), which display in the following four patterns:
| Pattern | Meaning |
|---|
| Off | No LED illumination |
| Solid | LED fully illuminated |
| Blink | Blinks at a constant rate of
several times per second |
| Activity | Blinks in a pseudo-random pattern |
The following LED indications are protocol independent:
| Condition/State | LED 1 | LED 2 |
|---|
| Port Identification | Blinks green | Blinks green |
| NI-XNET catastrophic error | Blinks red | Blinks red |
Open Session on hardware, port is properly powered,
and hardware is not communicating | Solid Green | Off |
| Open session on hardware, port is missing power | Solid Red | Off |
The following LED conditions are specific to CAN:
| Condition/State | LED 1 | LED 2 |
|---|
| Hardware is communicating, and controller is in Error Active state | Solid Green | Activity green (returns to idle/off
one second after last TX or RX) |
| Hardware is communicating, and controller is in Error Passive state | Solid green | Activity red (returns to idle/off one second after last TX or RX) |
| Hardware is running, and controller transitioned to bus off | Solid green | Solid red |
The following LED conditions are specific to FlexRay:
| Condition/State | LED 1 | LED 2 |
|---|
Hardware is integrated with a FlexRay cluster,
and controller is in Normal Active state | Solid Green | Activity green (continues while integrated) |
Hardware is integrated with a FlexRay cluster,
and controller is in Normal Passive state | Solid green | Activity red (continues while integrated) |
| Hardware was integrated with a FlexRay cluster and transitioned to Halt state | Solid green | Solid red |
The following LED conditions are specific to LIN:
| Condition/State | LED 1 | LED 2 |
|---|
| Hardware is communicating | Solid green | Activity green (returns to idle/off one
second after last TX or RX) |