Rockwell Automation FactoryTalk Metrics User Guide - Manual (Page 85)

Collecting Performance Data Chapter 3
collection begins, remains open for as long as the data for the
Part Count Formula is collected, and is subject to the event
data summarization rules. Each record contains a zero for the
start value and the cumulative result of the part count formula
over the time duration of the event record for the end value.
• Part Count Formula Point
One of these system-level events is created for every
component of a part count formula, when used in a workcell.
An event record is created when data collection begins,
remains open for as long as the data for the Part Count
Formula is collected, and is subject to the event data
summarization rules. Each record contains a zero for the start
value and the cumulative change of the formula data point
value over the time duration of the event record for the end
value.
• Activity Area Part Count - Point
This system-level event is created when a data point is used for
a part count in a workcell (not a part count formula). An event
record is created when data collection begins, remains open for
as long as the data for the Part Count Point is collected, and is
subject to the event data summarization rules. Each record
contains the a zero for the start value and the cumulative
change of the part count data point value over the time
duration of the event record in the end value.
For more information on the event data summarization rules, see
"Set the Event Data Summarization Parameters" in the
Configuration Console online help.
User-defined events are custom events that are used to collect extra
data that you would like to associate with the existing performance
data. By defining custom events, you can direct FactoryTalk Metrics
to monitor specific bits or registers in the plant control system, and
maintain historical records on the behavior of those data points. For
User-defined Events
Rockwell Automation Publication PLTMT-UM001M-EN-P-June 2014 85