HYDAC ELECTRONIC EDS 820, Руководство по эксплуатации

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EDS 820 IO-Link
9
Edition: 2020-04-21
HYDAC ELECTRONIC GMBH
Part No.: 669916 E
8 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
9 Operation modes
9.1 SIO mode
After start-up, the pressure switch is in SIO mode (standard I/O mode). In this mode,
Pin 4 serves as a switching output.

The mode display (LED Com) is constantly lit green.
9.2 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), also known
as "IO-Link mode", 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.
In the SDCI mode a transmission of the process data is performed cyclically via the
communication pin 4 to the connected IO-Link master.
The EDS 820 provides a process data width of 2 bytes. 14 bits are used for the actual
measured value ("PDV" = "Process data value").
2 further bits function as switching bits ("BDC" = "Binary digital channel"), which can be
parameterised just as physical transistor switches (please see
chapter 10
Parameterisation
).
The process bits are arranged in one data word in accordance with Table 1. In order to
receive the pressure value for further processing in the controller, a bit shift operation
must first be carried out for each data word (shift right 2).
LED 1
(Q 1) Yellow Switching output 1 active
(high)
LED 2
(Q 2) Yellow Switching output 2 active
(high)
LED 3
(Com) Green,
continuous Switch in SIO mode
Green,
flashing Switch in SDCI mode
Q 2
Q 1
Com
M12x1
connector