Multi-Beam Safety Light Array
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5.2.5.8 IO-Link Interface (C/Q)
IO-Link is a standardized communication system for connecting intelligent sensors and actuators to an auto-
mation system. This takes place via a point-to-point connection.
The IO-Link interface in the SEFB has the following function for the user:
• Saving and reading out parameter data in the ESPE.
• Querying the ESPE status.
At the request of the master (Wake-Up Request, WURQ), the sensor switches to IO-Link mode (communica-
tion mode).
If the IO-Link interface is not used for communication, it has the following functions:
• With the receiver, always as a signal output (see
“5.2.5.3 Signal Output” on page 76
• With the emitter, as a digital input (without function).
ATTENTION!
• The IO-Link interface is not safety-related.
• This means that both OSSDs must always be connected in the safety circuit during opera-
tion (see
NOTE!
• Settings (e.g. range) can be read out by the IO-Link master via the IO-Link parameters or
sent to connected IO-Link products. All parameters are set via the software of the IO-Link
master.
• Data (e.g. switching statuses, receive signals) of IO-Link products is transferred cyclically
to the IO-Link master via the IO-Link process data.
• IO-Link sensors are connected to the IO-Link master. It provides an interface to the high-
er-level control and controls the communication with the connected IO-Link products.
