Rockwell Automation 441-PEN25 Enpac Ex Data Collector - Manual (Page 124)

Publication GMSI00-UM001A-EN-E - February 2005
118 Frequently Asked Questions and Answers
As an example, there are certain filters available in the Enpac Ex. Then there
are three possible cases:
• You select the Enpac Ex as the only active collector. Emonitor displays
the correct filters in the measurement filter column of the Measurement
Definition pane.
• You do not select any active collectors. Emonitor displays many more
filters than are available for the Enpac Ex.
• You select two or more active collectors. Emonitor may display only
some, or none, of the filters that are available for the Enpac Ex.
For more information on setting the active collectors, see the Emonitor online
help.
Why can’t I edit the measurement definitions units?
Emonitor does not allow you to change some of the information for a
measurement definition after you collect data for that measurement definition.
This prevents you from collecting and then comparing data with different
measurement definition selections. You cannot edit the Data Type or Units
columns in the Measurement Definition pane after you collect data for the
measurement definition. You can, however, change the Collection, Filter, and
the Storage columns for a measurement definition after collecting data.
Loading Lists to the Enpac
Ex I think I lost some data. What happened?
There are several common ways you can delete data.
• You set up the Load Options to initialize the memory before loading a
list. If you have any lists in the Enpac Ex with data that has not been
unloaded, you will lose all lists and data before loading the specified list.
• Click the D.C. Functions button then click Initialize data collector. If
you have any lists in the Enpac Ex with data that has not been unloaded,
you will lose all lists and data.
• Click the D.C. Functions button then click Clear data from list. If the
selected list(s) have data that has not been unloaded, you will lose the
data for those lists.
IMPORTANT
Changing the collection specification can make it difficult
to compare data after the change with data before the
change.