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Rockwell Automation Publication 871TM-UM002C-EN-P - October 2017
Chapter 3
871TM Long-range Sensor with IO-Link Overview
Correlation
The AOP reads all configuration read-write (R.W.) parameters directly from
the connected IO-Link devices and compares the values to ones stored in the
controller. This action determines if there are differences (note that the
correlation does not work for read-only (R.O.) in the parameters or for
competitive sensors.). This feature is for Allen-Bradley enabled IO-Link devices
only and is an online only function that runs when opening up the AOP.
•
No differences
: There are no differences, so you go directly into the
AOP.
•
Differences
: If there are differences, the user is provided with a
differences dialogue that identifies the IO-Link parameters that, do not
match for each channel. You can then choose, on a channel by channel
basis (where differences exist) to upload the parameters that are currently
in the device and store them in the controller. Alternatively, you can
choose to download the parameters that are stored in the controller to
the connected IO-Link device.
Automatic Device
Configuration (ADC)
Replacing damaged sensors is easy. Simply remove the old Allen-Bradley sensor
and connect the new sensor (with the same catalog number) —the controller
automatically sends the configuration to the new sensor.
ADC capability within the sensor and controller enable flexibility and
reliability in your application. When the sensor becomes damaged or fails and
must be replaced, replace it with the exact same catalog number of the existing
sensor. When the damaged sensor is removed and the new sensor is plugged in,
the existing configuration is automatically stored in the sensor through the IO-
Link Master. No additional steps are required on the sensor or in the controller.
No personal computer is required and reteaching the sensor is not required.