Page 69 - Sensors and Systems - North American Catalog
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Sensors and Systems
Switching example:
The model number for this type of sensor includes the
reference -F.
Sensor Interfaces
Many sensors from Pepperl+Fuchs have a digital interface
in addition to binary or analog outputs.
Sensors with RS232 interface
The RS232 interface enables communication with the
sensor during operation. However, this interface is primarily
designed for parameterizing sensor functions. Many of our
ultrasonic sensors include this feature.
Sensors with USB interface
Generally, what applies to the RS232 interface also
applies to the USB interface. It is essentially designed for
parameterizing sensor functions.
Sensors with a parallel interface
The process value is output by the sensor via parallel data
lines. A separate line is required for each bit of the data word.
Pepperl+Fuchs supplies ultrasonic sensors, optical data
couplers, and rotary encoders with a parallel interface.
Sensors with SSI interface
The SSI interface (Synchronous Serial Interface) is a
unidirectional interface for the rapid transfer of process data
from the sensor to the control unit. The telegram length is
always 25 bits. Sensors with SSI interface are included in:
•
Absolute rotary encoders
•
Data Matrix positioning systems PCV
•
Position encoding systemWCS
•
Laser distance measurement devices
Sensors with IO-Link
IO-Link is a point-to-point communication system. Sensors
with IO-Link are fully downward compatible with binary
sensors with a switching output. If no IO-Link master is
connected to the sensor, the sensor operates in SIO mode
with a conventional switching output. An IO-Link sensor can,
therefore, be integrated into existing systems. If the sensor
detects a connected IO-Link master when it is switched on,
it operates in IO-Link communication mode.
All the features of this modern interface technology are
available in communication mode:
•
Parameterizing the sensor functions
•
Reading out process data
•
Transferring diagnostics data
When using IO-Link, you also benefit from:
•
Reduction in the number of versions—one IO-Link sensor
replaces a number of sensors with different end stages
•
Reduction in machine downtime due to differentiated
diagnostics
•
Calling up of diagnostic information during operation as
a means of preventative maintenance
•
Reduction inproject planningand installationcosts thanks
to a standardized interface
•
Simple three-core cable to connect all sensors
•
IO-Link master enables different sensor types—even
simple binary sensors—to be connected.
Bus-compatible sensors
AS-Interface sensors
These sensors are connected directly to the AS-Interface
bus. The communicative ability of these devices supports
enhanced functionality.
AS-Interface sensors are included in the following product
areas:
•
Inductive sensors
•
Photoelectric sensors
•
Rotary encoders
Standard binary sensors can be connected to AS-Interface
via AS-Interface modules.
Additional bus systems and networks
Sensor products with extensive features and high data
transmission rates incorporate network-compatible
communication interfaces. Pepperl+Fuchs offers sensor
products for all standard field bus systems.
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-U B
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