17
Glossary
CoLa2
CoLa2 (Command Language 2) is a protocol from SICK, with which
a client (control, computer, etc.) can access suitable SICK sensors
via a network (TCP/IP) or USB.
Collision protection field
The collision protection field detects oncoming industrial trucks
in narrow aisles based on the reference target. It has a greater
scanning range than a protective field. With the collision protection
field, collisions of industrial trucks in narrow aisles can be safely
prevented.
The collision protection field is not suitable for detecting people.
The collision protection field may only be used in narrow aisles.
Contour detection field
The contour detection field monitors a contour of the environment.
The electro-sensitive protective device switches the associated
safety outputs to the OFF state if a contour does not correspond to
the set specifications, e.g. because a door or flap is open.
Control input
A control input receives signals, e.g. from the machine or from
the control. Use of control inputs is how the protective device
receives information about the conditions at the machine, e.g., if
there is a change of operating mode. If the protective device is
configured appropriately, it will activate a different monitoring case
after receiving a new control input.
The control input information must be transmitted reliably. Gener‐
ally, at least 2 separate channels are used to do this.
Depending on the device, a control input can be realized as a
static control input or a dynamic control input.
Dangerous state
A dangerous state is a status of the machine or facility, where
people may be injured. Protective devices prevent this risk if the
machine is operated within its intended use.
The figures in this document always show the dangerous state of
the machine as movement of a machine part. In practice, there
are different dangerous states, such as:
•
Machine movements
•
Electrical parts
•
Visible and invisible beam
•
A combination of multiple hazards
Dynamic control input
A dynamic control input is a single-channel control input that eval‐
uates a number of pulses per time. An incremental encoder can
be connected to a dynamic control input. The incremental encoder
reports, for example, the speed of an AGV. In conjunction with a
second control input, a dynamic control input is used to switch
between different monitoring cases depending on the speed.
EDM
External device monitoring
EFI-pro
EFI-pro
23)
is an Ethernet-based network for general and safety-
related data communication.
EFI-pro allows for easy device identification, addressing, configura‐
tion, and diagnostics.
Devices can exchange data via EFI-pro, such as control signals,
safety-related shut-off signals, and diagnostics data.
An EFI-pro network can have various structures (topologies), e.g.,
with cables running from one central device to all the others (star
topology) or with cables running from one device to the next (line
topology). Different topologies can be combined within one EFI-pro
network to form a hybrid topology.
17
GLOSSARY
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O P E R A T I N G I N S T R U C T I O N S | microScan3 Pro I/O
8025424/1ELL/2022-01-21 | SICK
Subject to change without notice
