Figure 5-10 Hot Start - Honeywell VRX180 User Manual

Setpoint Profiler
Table 5-2 Parameters That Control Profiler Execution (continued)
Parameter name Definition
HOLD Holds a profiler at its current position.
Profiler's Elapsed Time continues but
Segment Time stops until Profiler is started
again.
Hold is activated by online operator menu or
by a discrete input. May be connected to F2
key (SY1F2).
ADVANCE
Advances a profiler on Hold to the starting
value of the next segment. If the profile is on
the last segment, it advances to the ending
value of the last segment. If the profile is on
the ending value of the last segment of the
batch, then it advances around to the starting
value of segment 1, or to the first segment of
the batch phase as defined by BATCH
SEGMENT FIRST. If within a loop, advances
to next segment in the loop.
Advance is activated by online operator menu
or by a discrete input.
HOT START
When HOT START is ON and the profiler is
started, the profiler begins to run at the point
in the profile where the current value of PV #1
first occurs. Hot Start makes the profiler skip
over unneeded segments.
Hot Start is activated by a discrete input.
Example
If PV #1 is 100 and the profile contains the
value 100 in Segment 4 and Segment 6, HOT
START forces the profiler to start running at
Segment 4 at 100, not at Segment 1 or
Segment 6.
See Figure 5-10 Hot Start.
PV#1
186
If Hot Start = ON, Profile starts at first intersecting point between profile and PV #1.
Profile starts here

Figure 5-10 Hot Start

Video Recorder – User Manual
Triggered Conditions
by present
Level ON Profiler is in
Run or Hold
Rising Profiler is in
edge Hold
Level ON Profiler is in
Ready
Result
Profiler is
put in Hold
Profiler
advances
When
profiler
changes
from Ready
to Run,
profiler
jumps to
the same
value as
PV #1