IO-Link 3SU14
12.2 Electronic modules for ID key-operated switches
SIRIUS ACT 3SU1 pushbuttons and signaling devices
System Manual, 08/2018, A5E03457306020A/RS-AK/010
337
The device LEDs are used to indicate the correct functioning of the electronic module for
ID key-operated switches. If a short-circuit or internal fault occurs, this is indicated by these
LEDs.
● Green device LED (DEVICE) lights up: Normal operation
● Red device LED (DEVICE) lights up: Fault display
The IO-Link LED is only used with the electronic module for ID key-operated switches for
IO-Link, and is inactive with the electronic module for ID key-operated switches.
● Normal operation:
When IO-Link communication functions properly, the green IO-Link LED flashes in
accordance with the IO-Link communication specification V1.1 (time duration
approximately 1 second, ON time approximately 0.9 seconds).
● Fault display:
The IO-Link LED shows a red light in the event of IO-Link communication faults.
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