BAS-SVU025A-EN 43
LEDs and the 7-Segment Display
Interpreting the 7-Segment Display
The 7-segment display shows the operating status of the Tracer SC.
Normal startup sequence: 8, 7, 9, 5, 4, -L, dancing dashes
Shutdown sequence: Press power button. LED displays 3, -, 2, - 1 - until the application shuts down.
Press the power button to turn power off.
Table 2. 7-segment display: Codes and interpretation
Red/Green LED 7-segment display Indicates...
Green 8
Processor in reset, or no functioning software. A persistent “8” means
that service is required.
Green 7 Starting level 1 boot loader
Green 9 Starting level 2 boot loader
Green 5
Entering operating system. A persistent “5” means the operating
system is malfunctioning.
Green 4 (this number remains for a few seconds) Booting operating system.
Green –L Loading and initializing main program.
Green
“Dancing dash” dashes flash one at a time:
top, middle, bottom
Normal operation
Green
3, -, 2, -, 1, -
(sequence repeats)
Power button was pressed and Tracer SC is shutting down. May take 10
or more seconds.
Green
3, 2, 1
(sequence repeats)
Main program shutting down due to reboot command. In most cases,
the main program will be restarted.
Flashing Red 7 F
Mismatch between level 1 boot loader and hardware. Service is
required.
Flashing Red 7 H Hardware failure. SC will probably need to be replaced.
Flashing Red 7 A Missing level 2 boot loader.
Flashing Red 7 U Mismatch between level 2 boot loader and hardware.
Green Single digit during operation
Rotary switch was changed. The new setting of the changed switch is
displayed on the 7-segment LED for several seconds.
U, P, d Firmware update is in progress.
d, o, n, E
Updating of the operating system is finished. The Tracer SC can be
powered off, the SD card removed, and the Tracer SC restarted.
F, o, r, C, E
Rotary switches set to 999; forced return to factory defaults in
progress.
C, L, E, A, r
Tracer SC is restoring factory defaults (whether by force return, UI
command, or at the beginning of a database restore operation).
r Database restore in progress.
Flashing Red H, O, L, d
Main program is delayed due to multiple crashes (may take up to 4
hours).
Red F
Cannot load operating system. May be remedied by SD-card update
with appropriate software version.
Flashing Green U
Power button was pressed when main program was not running/not
responsive. SC is shutting down; wait for LEDs to turn off.
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