8.0 LEDs [T-Series Datasheet]
STATUS - The Green LED
The STATUS LED indicates when the T-series device is performing autonomous tasks, such as running an on-board Lua script or streaming. The STATUS LED will blink according to the following rules:
Continuously while stream is running.
Once when a Lua script accesses a Modbus register.
Twice every 2 seconds when the T8 is in recovery mode.
In conjunction with the COMM LED. See the Combined LED Activity section.
COMM - The Yellow LED
The COMM LED's primary purpose is to indicate packet transfer. The COMM LED will blink according to the following rules:
Once for each packet transferred. At high packet transfer rates the LED will blink at 10Hz, even if more than 10 packets are being processed per second.
Continuously when stream mode is running.
A few times after successfully connecting to a USB host.
In conjunction with the STATUS LED. See the Combined LED Activity section.
Normal Behavior
Here are 3 examples of normal LED behavior. For troubleshooting it is useful to compare these examples to what you see on your device.
Power-Up
Both LEDs blink rapidly for about 1 second.
COMM solid off and STATUS solid on.
If USB enumerates, COMM blinks a few times and then stays solid on.
Idle
Both LEDs solid on. No blinking
While Viewing Kipling's Dashboard
Green LED solid on. Orange LED also solid on but with a quick double-blink once per second.
Combined LED Activity
When the LEDs blink together, the T-series device is computing checksums.
When the LEDs are alternating, the T-series device is copying a firmware image.
Troubleshooting
If LED behavior is not normal, please see USB Communication Failure.
LED Configuration
The LED mode can be set using the following registers:
When POWER_LED is set to manual mode, the LEDs can be turned on and off using the following registers: