Siemens SIMATIC ET 200SP Manual page 19

Interrupts/diagnostics alarms
5.1 Status and error displays
Meaning of the LEDs
The following tables contain the meaning of the status and error displays. Corrective
measures for diagnostics alarms can be found in section Diagnostics alarms (Page 19).
DIAG LED
Table 5- 1
DIAG LED
Channel status LED
Table 5- 2
Channel status LED Meaning
PWR LED
Table 5- 3
PWR LED
18
Error display of the DIAG LED
Meaning
Backplane bus supply of the ET 200SP not OK
Off
Module parameters not assigned
Flashes
Module parameters assigned
On
Module diagnostics is available
Flashes
Status display of the channel status LED
Process signal = 0
Off
Process signal = 1
On
Status display of the PWR LED
Meaning
Supply voltage L+ missing
Off
Supply voltage L+ present
On
Digital input module DI 8x24VDC BA (6ES7131-6BF01-0AA0)
Manual, 02/2019, A5E34941724-AB