Honeywell VRX180 Components of a profile, Two PVs available, Number of segments, Time Units

Setpoint Profiler

5.2 Components of a profile

Two PVs available

Each profile can monitor up to 2 process variables. The second PV is for monitoring a second variable related to your process. The value of each PV is compared with the value of the profile. If the difference between either PV and the profile value exceeds specified amounts, the profiler will Hold (soak), if enabled to do so.

Number of segments

Up to 63 segments may be in a profile.

Time Units

All segments use the same time base (seconds, minutes, or hours).

4 types of ramp segments

There are four ramp types selectable at the RAMP TYPE prompt.

1.Value/Duration

2.Time

3.Rate

4.External

Value/Duration (Val/Dur)Ramp Type

This is the only ramp type that allows consecutive ramps or soaks. VALUE is the beginning value of the segment; TIME is the time needed to reach the VALUE of the next segment.

Ramp Type = Value/Duration

Features of this ramp type

*Allows consecutive ramps or soaks

*First segment can be a ramp or soak

	Ramp segments				Soak segments
	Time = time to reach next segment Value				Time = duration of soak
Segments #4 & #5	Value = beginning value of current segment				Value = value of soak
Value
Segment #3
Value
Segments #1 & #2
Value
	Segment #1	Segment #2	Segment #3	Segment #4		Segment #5
	Time	Time	Time	Time		Time
	Figure 5-3 Value/Duration Ramp Type

178 Video Recorder – User Manual