Siemens 6ES7131-6BF00-0DA0 - Page 24

Operating mode DI
3.3 Interrupts/diagnostics alarms
Digital input module DI 8x24VDC HS (6ES7131‑6BF00‑0DA0)
24 Manual, 03/2015, A5E35243810-AA
Meaning of the LED displays
The following tables show the meaning of the status and error displays. Remedial measures
for dealing with diagnostic interrupts can be found in the section Diagnostics alarms
(Page 27).
DIAG LED
Table 3- 2 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 and no module diagnostics
Flashes
Module parameters assigned and module diagnostics
Channel status LED
Table 3- 3 Status display of the channel status LED
Channel status
LED
Meaning
Off
Process signal = 0
On
Process signal = 1
CNT LED
Table 3- 4 Status display of the CNT LED
CNT LED
Meaning
Off
Counting operating mode disabled
On
Counting operating mode enabled