Rockwell-automation FactoryTalk Metrics User Guide Manual do Utilizador descarregar pdf (Página 128)

Chapter 3 Collecting Performance Data

Metrics that you should evaluate for your organization. Each

approach has its own advantages and considerations:

• Running versus downtime. (page 128)

• User-defined downtime events. (page 129)

• Machine state. (page 130)

This measure of downtime is suitable for the organizations that

consider downtime to be "any time a machine is available to produce

parts, but is not actually running".

By default, an activity area is assumed to be always available and

always running; however, this default configuration does not allow

you to collect downtime for the activity area. To collect downtime,

you need to provide a method to determine the machine availability

and a running indicator from the control system.

To define the monitored availability of an activity area, use the

Monitored Availability tab in the Configure Performance

Parameters dialog box.

You can set there the available time to be collected from the control

system, or to be defined by a time pattern (or a shift schedule), and

modified by the Monitored Availability setting. You can also define

a data point or a formula from the control system that indicates

when the monitored machine is running.

For more information, see "Configuring Monitored Availability

(page 73)".

To report on the difference between the available time and running

time (i.e., the time when the machine was available but not

running), use the Downtime Seconds column in the PlantMetrics

Workcell History report data source.

Running Versus Downtime

128 Rockwell Automation Publication PLTMT-UM001M-EN-P-June 2014

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Rockwell-automation FactoryTalk Metrics User Guide Manual do Utilizador Página 128