--- title: "Status LEDs" slug: "status-leds" updated: 2024-07-04T11:00:27Z published: 2024-07-04T11:00:27Z canonical: "docs-linescan.alliedvision.com/status-leds" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs-linescan.alliedvision.com/llms.txt > Use this file to discover all available pages before exploring further. # Status LEDs | operating status | green LED | yellow LED | red LED | | --- | --- | --- | --- | | during power-up | The LEDs displays the programmed ID of the XLC4 control unit | | during operation | flashes every 5 seconds during normal operation | temperature warning | error state turns off when error has been reset | #### Displaying the programmed ID The status LEDs have different values: | LED | values | | --- | --- | | red | 10 | | yellow | 5 | | green | 1 | **Examples** | ID | flashing | | --- | --- | | 3 | green flashes 3 times, yellow and red are off | | 7 | green flashes 2 times, yellow is on and red is off | | 13 | green flashes 3 times, yellow is off and red is on |