SICK nanoScan3

4.4.5 EtherNet/IP
EtherNet/IP
E
therNet/IP™ (EtherNet Industrial Protocol) is an Ethernet-based network used in indus‐
trial automation.
EtherNet/IP™ implements the CIP™ (Common Industrial Protocol) based on the Ether‐
net and TCP/IP protocol family.
EtherNet/IP™ with the CIP Safety™ protocol extension is also suitable for safety-related
data communication.
Complementary information
T
he connection can also be used for configuration, diagnostics, and data output.
Further topics
•
"N
etwork connection", page 57
4.4.6 Restart interlock
Overview
D
epending on the regulations which apply at the place of installation, a restart interlock
may be required.
The restart interlock prevents the machine from automatically starting up, for example
after a protective device has responded while the machine is operating or after chang‐
ing the machine’s operating mode.
First, the operator must press a reset pushbutton to return the protective device to
monitoring status. Then, in a second step, the operator can restart the machine.
Important information
DANGER
H
azard due to lack of effectiveness of the protective device
The dangerous state may not be stopped in the event of non-compliance.
If a protective field is interrupted, the safety output switches to the OFF state for at
least 80ms, even if the interruption is shorter than that time. With a safety output
via network, it can happen that the controller does not detect the OFF state in the
event of a very short protective field interruption, e.g. if the network time expectation is
configured to be greater than 80ms.
1)
The internal restart interlock of the safety laser scanner must be used to end the
dangerous state.
►
If the network time expectation is longer than 80ms, use the internal restart
interlock of the safety laser scanner.
Prerequisites
•
T
he control switch for resetting the restart interlock (reset button) is mounted
outside the hazardous area.
•
Persons within the hazardous area cannot operate the reset button.
•
Any person operating the control switch can view the entire hazardous area.
Internal restart interlock
Eac
h safety output of the safety laser scanner is equipped with a configurable internal
restart interlock.
1)
T
he network expectation time is sometimes referred to as the connection reaction time limit.
PROJECT PLANNING 4
8027909/2023-02-22 | SICK O P E R A T I N G I N S T R U C T I O N S | nanoScan3 – EtherNet/IP™
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Subject to change without notice