Rockwell Automation 1756-HIST2G Historian ME 2.1 User Manual
Page 99

5 • M
ANAGING
P
OINTS
89
Allows a space, comma, or semicolon to separate trigger definitions.
I
NSTRUMENT
T
AG
The Instrument Tag field is used for the full path to the controller. If a source tag
receives events from a controller, the tag in this field will read (or write back) events
from the controller. The tag name syntax is:
S
OURCE
T
AG
The Source Tag field is used to designate a trigger tag. Enter a trigger tag name for
the triggered Trigger Input or Output point.
Keyword
Trigger
Condition
Description
Example
TRIG
The condition is always Any.
EVENT
Any
EVENT
Nonzero
Trigger on any non-zero
value.
An event is triggered on a
value change from “Pt
Created” to 1 but it is not
triggered on a value
change from 1 to “bad
Input”.
EVENT
Anychange
Trigger on any change as
long as the value of the
current event is different
from the value of the
previous event.
An event will be triggered
on a value change from 0
to “bad Input” or from
“bad Input” to 0.
EVENT
Increment
Trigger on any increase in
value.
An event will be triggered
on a value change from 0
to 1.
EVENT
Decrement
Trigger on any decrease in
value.
An event will be triggered
on a value change from 1 to
0.