Rockwell-automation FactoryTalk Metrics User Guide Manual do Utilizador descarregar pdf (Página 142)

Chapter 4 Automated Configuration

These items of the UDT workcell template:

Are mapped to these performance parameters in FactoryTalk

Metrics:

Item Data type Item Description

Events_Digital BOOL[32] Custom Events (with

no event values)

An array of Boolean values interpreted by FactoryTalk

Metrics as triggers for 10 user-defined digital events.

Each of the values in the array should represent a single

important event that FactoryTalk Metrics will capture (such

as downtime, light curtain break, product changeover, etc.).

The start of an event is indicated by a change in the trigger

value from 0 to 1 (or low to high).

The end of an event is indicated by a change in the trigger

value from 1 to 0 (or high to low).

Once the events are imported to FactoryTalk Metrics, edit

the performance parameters and give the events

meaningful names for reporting purposes. See "Modifying

Performance Parameters (page 168)" for details.

Events_Analog FTM_AnalogEvent[5] Custom Events (with

event values)

An array of 5 occurrences of the FTM_AnalogEvent UDT.

The FTM_AnalogEvent UDT is an array of one Boolean

value and one integer value. The Boolean values represent

triggers. The 5 triggers are interpreted by FactoryTalk

Metrics as triggers for 5 analog events. The 5 integer values

are interpreted as event values, usually reason codes for

events. The event values are scheduled. Each of the

trigger/value pairs is independent, and indicates that an

important workcell event occurs.

The trigger value changes from 0 to 1 (or low to high)

when the event to track occurs, and changes back to 0 (or

low) when the event ends. The controller copies the event

value to the Value tag before the event ends and the

trigger returns to low. Each trigger/value pair indicates

only one distinct event that may have multiple causes (e.g.,

downtime, operator stop, etc.).

Once the events are imported to FactoryTalk Metrics, edit

the performance parameters and give the events

meaningful names for reporting purposes. Assign also

lookup lists to translate the integer values returned in the

Value tag to string values. See "Modifying Performance

Parameters (page 168)" for details.

Trigger

BOOL

Event Trigger

Value INT Event Value

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