Siemens SIMATIC ET 200eco PN M12-L - Page 31

Interrupts/diagnostics alarms
5.1 Status and error displays
Communication module CM 8x IO-Link + DI 4x24VDC M12-L (6ES7148-6JG00-0BB0
30 Equipment Manual, 09/2020, A5E49284833-AA
LEDs channel status DI
Table 5- 4 Status displays of the DI0, DI1, DI2, and DI3 LEDs
LEDs
Meaning
Channel status/channel
error
Off
Process value = 0
On (green)
Process value = 1
Channel status/channel error LEDs IO-Link
The LEDs of IO-Link port class A and port class B have the same behavior.
LEDs
Meaning
Channel status/error
off
Input or output value is 0 or port is disabled.
On (red)
IO-Link communication established, active device or channel fault.
Flashes
At startup or permanently, if no functional IO-Link device was found.
On (green)
• DI/DQ operating mode: Input or output value is 1.
• IO-Link operating mode: Communication is running.