DCP200 Profile Controller & Recorder - Product Manual

Profile Starting & Standard Segments

The example profiles below contain examples of the standard segment types required to make simple profiles or profile sequences. A Start Trigger is the instruction to begin the selected profile. Depending on the Run/Hold Signal parameter setting in the Profile Setup Menu, this can be from a Key-press given in the appropriate screen, a digital input signal or via a serial communications command.

Following a Start Trigger, profiles can start immediately, after a delay, or from the Timer (Timer start available on Recorder version only).

CAUTION:

A timer start time should not clash with other profiles. A profile will not start if another is running. Remember that delays caused by manual holds or Auto-Hold can effect when the previous running profile will finish.

PROFILE 1

PROFILE 9

Seg. 1 Target SP

 

Ramp (Time/Rate)

Step

Starting Setpoint

 

Start

End

Trigger

 

Timer or Delay Dwell

Join (Profile 1 to Profile 9)

Figure 38. Profile Starting and Standard Segment Types

Ramps, Dwells and Step Segments each have an end of segment Target Setpoint.

If a segment is a Ramp-Timetype, the slope needed to reach the target in the defined time will change depending on the Starting Setpoint value. For a Ramp-Ratesegment, the slope is defined by the segments Ramp Rate, so the time to reach the target setpoint will change instead. This is of particular significance for the first segment, since the starting value of the process may not be known.

A Dwell (sometimes called a soak) holds the last segment’s value for the specified Dwell Time.

Step segments jump straight to the new target setpoint value.

An End segment ends the profile sequence.

If the last segment is a Join, the join target profile will start.

Note:

The Profile sequence will abort if the join target has been deleted.

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Profiler Option

51-52-25-150, Issue 1 – April 2009

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Honeywell DCP200 manual Profile Starting & Standard Segments, Seg Target SP, Step

DCP200 specifications

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