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Rockwell Automation Publication 871FM-UM002A-EN-P - April 2017 47
Chapter
9
Review the 1734-4IOL IO-Link AOP
Overview — Device
Parameter Behavior
IO-Link parameters are shown in the Add-on Profile (AOP) only for IO-Link
devices with IODD Advanced integration. Each parameter can have an
attribute of read-only (ro), read/write (rw), or write only (wo). The behavior of
parameters and the source for their values differ whether you are offline or
online.
Table 4 - IO-Link Device Parameter Behavior
The 1734-4IOL AOP offers four different tabs to describe the sensor
functionality and operation. These tabs are:
For a complete listing of all sensor parameters and parameter definitions, see
Device Parameters on page 71 .
Attribute Offline Online
Read-only (ro) Parameters are blank. Parameter values are read from the connected IO-Link
device.
Parameters show “??” when communication breaks.
Read-write (rw) Parameter values are read from the
IODD file when the IO-Link device is
added.
Changes made to the parameters are
applied when the “OK” and “Apply”
buttons are clicked.
Parameter values can be edited and changes made to
the parameters are applied when the “OK” and “Apply”
buttons are clicked.
Changes are sent to the Master Module, which then
writes the changes to the connected IO-Link device.
Write only (wo) Parameter buttons are disabled. Parameter buttons that could potentially alter the
Process Data are disabled.
Other parameter buttons that are enabled, result in
commands being sent to the connected IO-Link device.
Tab Page Description
Common 48 General product information about the sensor specifications and IO-link IODD
information.
Identification 49 Sensor cat. no., series letter, general product description including the current product
firmware, and hardware revisions.
Observation 49 Provides device monitoring parameters with signal strength ON, signal strength OFF,
contrast, and gain.
Parameter 50 Different configurable parameters available in the 871FM.
Diagnosis 53 Monitor IO-Link communication characteristics.