Figure 3-30 Up To 16 Discrete Events May Be Programmed Per Step Of A Set Point Profile - Honeywell VPR100 User Manual

Also typical in the execution of a set point profile is the generation of discrete events during each profile
step. Discrete events are simply status indicators that are programmed to assume either an ON or OFF state
during a step of a profile. As simple discrete status indicators, these events may, for example, be used to
initiate a logic control scheme on the process being controlled upon the occurrence of a particular profile
segment. In this product, note that up to 16 discrete events may be programmed per segment. See Figure 3-
30.
PROCESS
VALUE IN
ENGINEERING
UNITS
SEGMENT
SP1 EVENT
#1
é
é
é
SP1 EVENT
#16

Figure 3-30 Up To 16 Discrete Events May Be Programmed Per Step Of A Set Point Profile

Discrete events, whose ON or OFF states depend on the step number of the profile they are associated with,
may be externalized using the discrete output hardware available in the instrument. Figure 3-31 features the
function block diagram elements that represent how to program the instrument's discrete outputs so that
their states coincide with those assumed by a profile's discrete events.
12/00
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SEGMENT
#1 #2
ON OFF
é é
é é
é é
OFF ON
VPR & VRX – User Manual
Programming and Operating Concepts
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TIME
SEGMENT SEGMENT
#3 #4
ON ON
é é
é é
é é
ON OFF
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SEGMENT
#5
OFF
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é
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ON
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