Rockwell Automation FactoryTalk Metrics Line Edition Administrators Guide - Manual (Page 24)

F ACTORY T ALK M ETRICS L INE E DITION A DMINISTRATOR ’ S G UIDE
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C USTOM E VENTS - D IGITAL
The UDT contains an array of five Boolean values that are interpreted by FactoryTalk
Metrics as triggers for five user-defined digital events. (There are actually 32 values in the
array, but the FactoryTalk Metrics LE Configuration Tool only configures the first five.)
FactoryTalk Metrics will monitor each of these Boolean values, and each should represent
a single important event that FactoryTalk Metrics will capture (such as an e-stop,
downtime, light curtain break, product changeover, etc.). When the trigger value changes
from 0 to 1 (or low to high), that is interpreted as the start of the event. A trigger value
change from 1 to 0 (or high to low) is interpreted as the end of the event.
Once these events are configured in FactoryTalk Metrics by the FactoryTalk Metrics LE
Configuration Tool, you should edit the performance parameters to give them meaningful
names for reporting purposes. See “Modifying performance parameters” on page 45.
Digital events differ from analog events because analog events have an event value data
point (such as an event reason code) in addition to the trigger data point.
Line UDT Field Name Data Type FactoryTalk Metrics use Scheduled/Unscheduled
Events_Digital BOOL (32) Custom Events (with no
event values)
Unscheduled
10 Events_Digital(0) BOOL Event Trigger
11 Events_Digital(1) BOOL Event Trigger
12 Events_Digital(2) BOOL Event Trigger
13 Events_Digital(3) BOOL Event Trigger
14 Events_Digital(4) BOOL Event Trigger
FTMLE Admin Guide.book Page 20 Friday, August 8, 2008 8:28 AM