Kübler Group
4 Installation
Manual IO-Link interface - R67071.0002 - 02
EN - 11
NOTICE
Use of pin 2
The IO-Link signal I/Q, which represents an optional and currently not
realized digital In/Output, is applied on pin 2, in compliance with the
standard. The use of this pin is currently not planned (marked ac-
cordingly as Reserved in the table).
IO-Link masters offer the possibility to connect the I/Q signal. When
using a 4 on 4-pin (5 on 5-pin), A-coded IO-Link cable, the proper
connection is ensured directly by the orientation of the connector. For
devices with cable outlet, the white cable (I/Q signal) must be con-
nected to the corresponding contact of the IO-Link master.
4.1.3 Network Topology
IO-Link uses a point-to-point communication.
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IO-Link provides for the use of an unshielded line. If the encoder is operated with an unshielded
line, its interference immunity falls in Criterion B and its radiation in Class A according to
61326-1.
If the application requires a higher EMC protection, it is possible to use a
shielded cable
. If the
encoder is operated with a
shielded cable
, its interference immunity falls in Criterion A and its
radiation in Class B according to 61326-1.
For currents lower than 200 mA in the IO-Link device, a cable with wire cross-section 0.35 mm²
can be used. The maximum line length can be 20 m.
The illustration below shows an example of a topology:
