Behavior Of The Leds During Booting - Siemens S120 Manual

Control Units, Control Unit Adapters and operating components
7.3 Control Unit CU310-2 PN (PROFINET)
7.3.4.2

Behavior of the LEDs during booting

Table 7- 17 Load software
RDY COM
Orange Orange
Red Red
Red Red
Red Red
Flashing light 2
Hz
Red Red
Flashing light 2 Flashing light 2
Hz Hz
Table 7- 18 Firmware
RDY COM
Red Orange
Red Off
Off Red
Red Red
Flashing light Flashing light
0.5 Hz 0.5 Hz
Orange Off
284
LED
OUT>5V
Orange Orange
Off
Off
Off
Off
LED
OUT>5V
Off
Off
Off
Off
Off
State
MOD
POWER ON
Off Hardware reset After pressing the RESET button
Off BIOS loaded
Off BIOS error
Off File error
State
MOD
Off Firmware
loading
Off Firmware
loaded
Off Firmware
check
(no CRC error)
Off Firmware
check
(CRC error)
Off Firmware
initialization
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
Comment
All LEDs light up for approx. 1 s
the LEDs light up for approx. 1 s
-
Error occurred while loading the
BIOS
Memory card not inserted or faulty
Software on memory card not
present or corrupted
Comment
COM-LED flashing without specific
flashing frequency
-
-
CRC is incorrect
-
AC Drive