Siemens SIMATIC ET 200SP Equipment Manual page 52

Interrupts/diagnostic messages
6.1 Status and error display
DIAG LED
Table 6- 1
Channel status/channel fault LED
Table 6- 2
Channel status
54
DIAG LED fault display
DIAG Meaning
Backplane bus supply of the ET 200SP not okay
Off
Module parameters not configured
Flashing
Module parameters configured and no module diagnostics
On
• Module parameters configured and module diagnostics
Flashing
• Operation at F-CPUs S7-1200/1500: At least one channel waits for a user
acknowledgement.
• Operation at F-CPUs S7-1200/1500: After a module fault, the F-module waits for
a user acknowledgement.
Flashing
• Operation at F-CPUs S7-300/400: The F-module waits for a user
acknowledgement.
Status display of the LED channel status/channel fault
Channel
fault
Off Off
On Off
Off On
/
Alternately flashing
Meaning
Process signal = 0 and no channel diagnostics
Process signal = 1 and no channel diagnostics
Process signal = 0 and channel diagnostics
At least one channel waits for a user acknowledgement.
Digital input module F-DI 8x24VDC HF (6ES7136-6BA01-0CA0)
Equipment Manual, 10/2021, A5E50578307-AA