Rockwell Automation Publication 442G-UM002B-EN-P - August 2021 7
Chapter 1
Product Overview
Multifunctional Access Box
with CIP Safety over
EtherNet/IP Overview
The multifunctional access box with CIP Safety™ over EtherNet/IP™ is a
combined interlocking module with guard locking and integrated control
elements. The intended use of the access box is at entry points for full-body
access into automation cells or areas that require restricted or controlled
access.
This access box can be used in an integrated safety system with a GuardLogix®.
safety controller. Safety data is exchanged by using CIP Safety via an
EtherNet/IP network.
In combination with a movable safety guard and the control system, this safety
module can help prevent opening of the safety guard while a dangerous
machine function is performed. The position of the guard locking is monitored
during this process.
• Starting commands that cause a dangerous machine function must
become active only when the safety guard is closed and locked.
• The guard locking module must not be unlocked until the dangerous
machine function has ended.
• Closing and locking a safety guard must not cause automatic starting of
a dangerous machine function. A separate start command must be
issued.
The locking module detects the position of the safety guard and the position of
the bolt actuator. The position of the locking arm is also monitored. The bolt
actuator is moved into and out of the locking module by actuating the door
handle. When the bolt is fully inserted into the locking module, the locking
arm can lock the bolt actuator in this position.
The GuardLocked input signal is turned on only when the locking bolt is
sensed in its extended position in the lock module and the locking arm is in
position (for example, the guard is closed and the bolt is both extended and
locked).
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