Rockwell Automation FactoryTalk Historian SE 4.0 Live Data Interface User Guide - Manual (Page 33)

Rockwell Automation Publication HSELD-UM024A-EN-E–September 2013 33
Chapter 6
I/O Rates Tag Configuration
An I/O Rates tag measures the throughput of an FTLD Interface. In
particular, the value of an I/O Rate point represents a 10-minute
average of the total number of values per minute that the FTLD
Interface sends to the FactoryTalk Historian server. Because values
are averaged over a 10-minute interval, the first calculated value is
not written to the Historian server earlier than 10 minutes after the
interface has started. You can configure one I/O Rates tag for each
copy of the FTLD Interface that is in use.
NOTE
The Historian system documentation often uses the terms Event Counter
Tag and I/O Rate Point synonymously.
For Windows nodes, the 10-minute rate averages (in
events/minutes) can be monitored with a client application such as
PI ProcessBook.
The Interface Configuration Utility (ICU) provides a user interface
for creating and managing the I/O Rates tag.
To access the I/O Rates tag data in ICU, select IO Rate from the
left pane of the ICU dialog box.
Monitoring I/O Rates Tag on
the Interface Node
Configuring I/O Rates Tag
with ICU