Component Functions
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EN-US · 30.30.01.02237 · 00 · 04/20
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IO-Link master as digital input or digital output module
If configured accordingly, each IO-Link master port can be used as a digital input or digital output.
Each port has up to the following number of available inputs/outputs:
– 3 digital outputs
– 1 digital input
Port X digital out-
put
Ground ref-
erence
Max.
current
Required configuration / prerequisites
Pin 1 (L+)
Pin 3 (GND
S
)
400 mA
Activate/deactivate the output: Power on/off = true/
false
Please note: The output is initially switched on after
power-up!
Pin 2 (UA)
Pin 5 (GND
A
)
2 A
Activate/deactivate the output: Auxiliary power on/off
= true/false
Please note: The output is initially switched on after
power-up!
Pin 4 (C/Q)
Pin 3 (GND
S
)
100 mA
Operating mode = 0x01: DO (digital output);
Activate/deactivate the output: IO-Link master process
data (lowest bit / lowest byte)
Port X digital in-
put
Ground ref-
erence
Max.
current
Required configuration / prerequisites
Pin 4 (C/Q)
Pin 3 (GND
S
)
100 mA
Operating mode = 0x02: DI (digital input);
Input status: Status of the IO-Link master process data
(lowest bit / lowest byte)
6.5.3 IO-Link ISDU – data management (read/write parameter data of IO-Link devices)
IO-Link ISDU data management describes the possibility of reading or changing acyclic data (i.e. on-re-
quest data or ISDU data) of an IO-Link device (connected to an IO-Link master port) via Ethernet.
PROFINET:
For PROFINET, “IOL_CALL” function modules are available from various controller manufacturers. These
are specified in accordance with “IO-Link Integration for Profinet”. With the appropriate integration into
the controller, this provides a convenient option for both ISDU data exchange of connected devices and
port configuration of the master ports.
The IO-Link master supports the use of the IOL_Call module (IO-Link device).
EtherCAT:
For EtherCAT and EthernetIP, Schmalz offers its own function module, which, based on the IOL-CALL func-
tion module for Profinet, allows convenient ISDU read and write access. The function module can be
downloaded from the Schmalz homepage. You can find more detailed information in the function mod-
ule documentation.
Independent of the above mentioned function modules, read/write accesses are possible via the following
sequences of Ethernet parameter read/write accesses.
