I/o data parameters – Rockwell Automation 1440-VLF02-01RA XM-121 Absolute Shaft Module User Manual
Page 76
Publication GMSI10-UM014D-EN-P - May 2010
68 Configuration Parameters
I/O Data Parameters
The I/O data parameters are used to configure the content and size of the
DeviceNet I/O Poll response message.
Status
Shows the status of the trend data.
Possible status values:
•
Not collected - No trend data is
currently collected.
•
Collecting - A trigger has occurred
and data is being collected.
•
Collected - A trend has been saved
to the buffer and is available to view
and upload.
View Trend Data
Displays a plot of the collected trend data.
Reset Trigger
Resets the trigger if Latch enabled is selected. This
allows the module to overwrite the previous trend
data when the machine speed crosses into the speed
range.
SU/CD Trend Parameters
Parameter Name
Description
Values/Comments
IMPORTANT
The Absolute Shaft module must be free of Poll
connections when configuring the Poll Output (Poll
Response Assembly) and Poll Size. Any attempt to
download the parameters while a master device has
established the Poll connection with the XM module will
result in an error.
To close an existing Poll connection with an XM-440,
switch the XM-440 from Run mode to Program mode.
Refer to Changing Operation Modes on page 81.
To close an existing Poll connection with other master
devices, remove the module from the scan list or turn off
the master device.
I/O Data Parameters
Parameter Name
Description
Values/Comments
COS Size (XM Serial
Configuration Utility only)
The size (number of bytes) of the Change of State
(COS) message.
The COS Size cannot be changed.
COS Output (XM Serial
Configuration Utility only)
The Assembly instance used for the COS message.
The COS message is used to produce the Alarm and
Relay status for the module.
The COS Output cannot be changed.
Refer to COS Message Format on
page 86 for more information.