Technical data
Diagnostics   
5.1 Diagnostics via LEDs 
  Function Manual 
86  Function Manual, 06/2012, 6SL3097-4AB10-0BP4 
Control Unit 305 - behavior of the LEDs during booting 
Table 5- 1  LEDs during power up 
LED 
RDY  COM  OUT>5 MOD 
Status  Remark 
Orange  Orange  Off  Red  Reset  – 
Red  Red  Off  Off  BIOS loaded  – 
Red 2 Hz  Red  Off  Off  BIOS error  – 
Red  Off  Off  Off  Firmware 
loaded 
– 
Red 2 Hz  Red 2 Hz  Off  Off  File error  problem with file system 
Off  Red  Off  Off  Firmware 
checked 
no CRC errors 
Red 0.5 
Hz 
Red 0.5 Hz  Off  Off  Firmware 
checked 
CRC error 
Orange  Off  Off  Off  drive 
initialization 
– 










