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25
10 Function Indicators
Digital LED
indicators for
inputs/outputs
LED 0, input/output on Pin 4
Indicator
Request / Signal
Yellow
Input/output signal = 1
Red
Sensor power supply short-circuit,
Actuator warning
Actuator short-circuit
Off
Input/output signal = 0
Extension
port
The table is valid if the extension port is active. If the extension port is used as a standard I/O,
then the description from "Digital LED indicators for inputs/outputs" can be used.
Status
Function
Green
IO-Link – connection active
Green flashing
No IO-Link connection or faulty IO-Link device
Red flashing
Incorrect IO-Link device or incorrect configuration
Red
IO-Link short-circuit on Pin 4