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Chapter 4
Configure the POINT I/O 4 Channel IO-Link Master as IO-Link Master Using the Studio 5000 Add-on Profile
IO-Link Device Parameter Behavior
Attribute
Read-only
"ro"
Read-write
"rw"
Write-only
"wo"
Manage Parameter
Differences Between
IO-Link Devices and
Controller
44
3. Change the value of read-write parameters (through either edit controls or
drop-down lists) and trigger write-only parameters by pressing the button
for the parameter.
Ranges and enumerated choices are derived from the IODD file.
4. Click Apply.
IO-Link Device Parameter Behavior
IO-Link parameters are shown in the Add-on Profile 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 when offline and when online.
See the following table for more information.
Offline
Parameters are blank.
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 or Apply buttons are clicked.
Parameter buttons are disabled.
The Add-on Profile has a Refresh button that updates the read-only parameters
for all channels with IO-Link devices. It also performs a Correlation check of the
read-write parameters in all connected IO-Link devices and in the controller.
Differences in parameter values can happen when device configuration is changed
externally, such as through a device console during operation. When the channel
is in ADC mode, if there are differences found after running a Correlation check,
you can choose, on a per channel basis, to use the parameters that are currently in
the connected IO-Link device or to use the parameters that are stored in the
controller.
Before you proceed with this task, take note of the following:
• The Refresh button is only enabled in Online mode.
• Correlation check is performed initially when the Add-on Profile is
launched in Online mode.
Online
Parameter values are read from the connected IO-Link
device.
Parameters show "??" when communication breaks.
Parameter values can be edited and changes made to
the parameters are applied when the OK or Apply
buttons are clicked.
Changes are sent to the Master Module, which then
writes the changes to the connected IO-Link device.
Parameter buttons that could potentially impact the
Process Data are disabled.
Other parameter buttons enabled and result in
commands being sent to the connected IO-Link device.
Rockwell Automation Publication 1734-UM020B-EN-E - August 2019
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