Siemens SIMATIC ET 200SP DI 8x24VDC ST - Meaning of the LED displays

Interrupts/diagnostics alarms
5.1 Status and error display
Digital input module DI 8x24VDC ST (6ES7131-6BF01-0BA0)
Manual, 02/2019, A5E03574157-AF
21
Meaning of the LED displays
The following tables show the meaning of the status and error displays. Measures for dealing
with diagnostics alarms can be found in the section Diagnostics alarms (Page 22).
DIAG LED
Table 5- 1 DIAG LED fault/error display
DIAG LED
Meaning
off
Backplane bus supply of the ET 200SP not OK
Flashes
Module parameters not assigned
on
Module parameters assigned
Flashes
Module diagnostics is available
Channel status LED
Table 5- 2 Status display of the channel status LED
Channel status
LED
Meaning
off
Process signal = 0
on
Process signal = 1
PWR LED
Table 5- 3 Status display of the PWR LED
PWR LED
Meaning
off
No supply voltage L+
on
Supply voltage L+ present