Siemens 181 Workshop Manual page 37

Interrupts/diagnostics alarms
5.1 Status and error display
Meaning of the LED displays
The following tables contain the meaning of the status and error displays. Remedies for
diagnostics alarms can be found in section Diagnostics alarms (Page 38).
DIAG LED
Table 5- 1
Channel status/channel error LED
Table 5- 2
Channel status
PWR LED
Table 5- 3
36
Error display of the DIAG LED
DIAG LED Meaning
Backplane bus supply of the ET 200SP not OK
Off
Module parameters not assigned
Flashes
Module parameters assigned and no module diagnostics
On
Module parameters assigned and module diagnostics
Flashes
Status and error display of the LED channel status / channel error
LEDs
Channel error
Off Off
On Off
Off On
On On
Status display of the PWR LED
PWR LED Meaning
Supply voltage L+ missing
Off
Supply voltage L+ present
On
Meaning
Channel deactivated
Channel activated and no channel diagnostics
Channel activated and channel diagnostics
Not permitted (error)
Analog input module AI 4xRTD/TC 2-/3-/4-wire HF (6ES7134-6JD00-0CA1)
Manual, 02/2014, A5E03573289-AD