6
EDS 820 IO-Link
Edition: 2016-01-13
HYDAC
ELECTRONIC
GMBH
Part No.: 669916
E
7 Status LEDs
The pressure switch has 3 status LEDs on the electrical connection:
2 LEDs (yellow) for the switching statuses of SP1 and SP2 and 1 LED (green) for the
operating status
8 Operation Modes
8.1 SIO mode
After start-up, the pressure switch is in SIO mode (standard I/O mode). In this mode, Pin 4
serves as a switch output.
The mode display (LED Com) is constantly lit green.
8.2 SDCI Mode
Via a connected IO-Link master the pressure switch can be switched to the SDCI mode
(Single-drop digital communication interface for small sensors and actuators) by means of
a wake-up signal. In this mode, Pin 4 serves as a communication pin. The master is able
to communicate with the pressure switch in order to change parameters or to read out
measured values.
The mode display (LED Com) is flashing green.
LED 1
(Q 1)
Yellow
Switching output 1 active
(high)
LED 2
(Q 2)
Yellow
Switching output 2 active
(high)
LED 3
(Com)
Green
permanent
Switch in SIO mode
Green,
flashing
Switch in SDCI mode
Q 2
Q 1
Com
M12x1
connect
