Siemens SIMATIC CN 4100 - Status of the Leds During Firmware Installation

LEDs After 1s After 2s After 3s After 4s After 5s
RL failure x x
COMM failure x x
BIOS update step 2 - LED status for successful installation
LEDs After 1s After 2s After 3s After 4s After 5s
RUN x x x
STOP x x x
Master
Standby
AH failure x x x
RL failure x x
COMM failure x x
BIOS update - LED status for error
LEDs After 1s After 2s After 3s After 4s After 5s
RUN x x x x x
STOP x x x x x
Master
Standby
AH failure x x x x x
RL failure x x x x x
COMM failure x x x x x
7.2.2 Status of the LEDs during 󹪝rmware installation
Note the LED status during 󹪝rmware installation.
The following tables show the lighting of the respective LED at the respective time (in seconds).
LED status for successful installation
LEDs After 1s After 2s After 3s After 4s After 5s
RUN x x x
STOP x x x
Master x x
Standby
AH failure
RL failure
COMM failure
Commissioning
7.2 Phases
CN 4100 Communication System
Equipment Manual, 10/2021, A5E50871363-AA 47