ETAS
Hardware Description
XETK-S22.0 - User’s Guide
23
4.7
Status LEDs
There are three LEDs (Green, Red, Yellow) displaying the operating status of the
XETK-S22.0 (Fig. 4-7 on page 23).
Fig. 4-7
Status LEDs of the XETK-S22.0
LED
State
Definition
Red
On
XETK-S22.0 is supplied with power and active (i.e. the ECU
is switched on or the 100 Mbit/s link to the calibration sys-
tem is established)
Green
Off
Working page may be different from reference page. Cali-
bration and development system has downloaded data
since the last power failure. Switching between the Refer-
ence Page and Working Page is possible.
On
Power supply has dropped under selected threshold:
- data retention of the calibration data manager in the ECU
is no longer ensured
- as soon as the XETK-S22.0 switches on again, the ECU
switches to the Reference Page.
Green LED stays on until the calibration and development
system downloads data into the calibration data memory.
Otherwise switching to the Working Page is not possible.
Yellow
Flashing Communication active
On
100 Mbit/s link to calibration system established
LEDs