Siemens SIMATIC ET 200SP Manual page 17

Interrupts/diagnostics alarms
5.1 Status and fault displays
Meaning of the LEDs
The tables below explain the meaning of the status and fault displays.
LED DIAG
Table 5- 1
LED channel status
Table 5- 2
LED channel
LED PWR
Table 5- 3
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LED DIAG fault display
LED DIAG Meaning
Backplane bus supply of the ET 200SP not OK
Off
Module parameters not assigned
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
LED PWR status display
LED PWR Meaning
Supply voltage L+ missing
Off
Supply voltage L+ present
On
DQ 4x24..230VAC/2A ST digital output module (6ES7132-6FD00-0BB1)
Manual, 02/2014, A5E32043575-AA