V01.00 | 2021/03
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Software-Supported IO-Link Parameterization
The ports of the IO-Link master are configured in IO-Link mode (IOL).
In IOL mode, the IO-Link master tries to wake the connected IO-Link device via the "Wake-up
Request". If the master receives a response from the IO-Link device, both devices start to com-
municate with each other. The communication parameters are exchanged first of all; the cyclic
data exchange of the process data (process data objects) then starts.
When IO-Link communication (IOL mode) is active, both a cyclic and acyclic communication
service is available.
There are two ways of setting the parameters via IO-Link:
n
via on-request data objects (e.g. close to the PLC via IO-Link function block)
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via tool-based engineering via FDT/DTM (e.g. PACTware with the use of DTM or the IODD)
Device parameters (on-request data objects)
Device parameters are exchanged acyclically and on request of the IO-Link master. The IO-Link
master always sends a request to the device first, then the device responds. This applies when
the data is written into the device and also when read from the device. On-request data objects
(ORDO) enable parameter values to be written into the device (write) or device states to be
read from the device (read).
IO-Link configuration in PROFINET
SIDI (Simple IO-Link Device Integration) enables IO-Link devices in PROFINET applications to be
configured directly in the programming environment (e.g. TIA Portal). The Turck IO-Link devices
are integrated in the GSDML file of the TBEN, TBPN and FEN20 series IO-Link masters and can be
set in the programming environment as submodules of a modular I/O system. The user has ac-
cess here to all device properties and parameters.
