Siemens Simatic ET 200SP Manual page 19

Meaning of the LEDs
The following tables contain the meaning of the status and error displays. Remedial
measures for diagnostic alarms can be found in chapter Diagnostic messages (Page 21).
DIAG LED
Table 5- 1
DIAG LED
LED channel status
Table 5- 2
LED channel
PWR LED
Table 5- 3
Digital output module DQ 16x24VDC/0.5A ST (6ES7132-6BH00-0BA0)
Manual, 12/2015, A5E03574420-AC
DIAG LED fault display
Meaning
Backplane bus supply of the ET 200SP not OK
Off
Module not configured
Flashing
Module configured and no module diagnostics
On
Module configured and module diagnostics
Flashing
LED channel status display
Meaning
status
Channel deactivated or activated and process signal = 0
Off
Channel activated and process signal = 1
On
Status display of the PWR LED
PWR LED Meaning
Supply voltage L+ missing
Off
Supply voltage L+ present
On
Interrupts/diagnostic alarms
5.1 Status and error display
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