Siemens SIMATIC ET 200S IM151-1 FO STANDARD - Page 36

Error and system messages
4.1 LED displays on the interface module
IM151-1 FO STANDARD interface module (6ES7151-1AB05-0AB0)
Manual, 02/2010, A5E01075965-03
35
Operating principle
The information about the cause of the problem is determined by means of the LED fault
display. After an announcement by means of a flashing signal, the respective error type and
after that the error location / error code are displayed.
The LED fault display of the configuration and parameter assignment errors
● Is activated both during POWER ON and during operation.
● Takes precedence over all other states that are displayed by the SF and BF LED.
● Remains activated until the cause of the problem has been eliminated.
After a change in the ET 200S configuration, a POWER-OFF / POWER ON may be required
at the interface module.
Sequence Description
1 LEDs SF and BF flash 3x at 0.5 Hz Announcement of error type
2 LED BF flashes at 1 Hz Display of the error type (decimal)
3 LEDs SF and BF flash 3x at 2 Hz Announcement of the error location / error code
4 LED SF flashes at 1 Hz Display of the decade (decimal) of the error location /
error code
5 LED BF flashes at 1 Hz Display of the unit position (decimal) of the error
location / error code
6 Repetition of 1 - 5 until the cause of the problem has been eliminated.