Smart presence detection prevents an unintentional machine shut-off, for example if
c
hips fall into the hazardous area protected by the guest systems.
3.2.13 Muting
Muting temporarily bypasses the protection of the safety light curtain so that material
c
an be conveyed to or from a machine or system. As a result, the work process remains
uninterrupted. The function can be configured during commissioning.
The distinction between people and materials is made by 2 signals that are indepen‐
dent of each other. Based on the logical evaluation of these signals, the protective
device is bypassed if a valid muting condition is present. As soon as something other
than material enters the hazardous area, the work process is interrupted.
3.2.14 Partial blanking
During partial blanking, only the topmost beam of the protective field remains active if
a v
alid muting condition is present. All other beams are temporarily bypassed (e.g. for a
certain object height). As soon as the topmost beam is interrupted, the OSSDs switch to
the OFF status.
3.2.15 IO-Link
Overview
T
he safety light curtain can communicate with an IO-Link master via an IO-Link connec‐
tor, available as an accessory.
The following information can be output via IO-link:
•
Application diagnostic output status information
•
Device information and device status
•
Configuration of the device
•
Status of each individual light beam
•
Error history
•
Reasons for the last lockout
The following information can be controlled via IO-link:
•
LED signal behavior of the field indicator
•
Switching on and off of the integrated laser alignment aid
Complementary information
T
he safety light curtain must be supplied with voltage to enable communication with an
IO-Link master via the IO-Link connector.
Further topics
•
"A
ccessories", page 139
3.2.16 Near Field Communication (NFC)
Overview
T
he receiver of the safety light curtain has an integrated NFC interface for transmitting
diagnostic data of the protective device to an NFC-capable device.
The integrated NFC interface is intended for temporary use.
3 P
RODUCT DESCRIPTION
16
O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex II 3GD 8023872/18YZ/2021-01-14 | SICK
Subject to change without notice
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