Thermcraft XST-3-0-36-3V User Manual
Page 219

Installation and Operation Handbook
Programmer Operation
2416 Controller
5-3
There are five different types of segment:
Ramp
The setpoint ramps linearly, from its current value
to a new value, either at a set rate (called ramp-rate
programming), or in a set time (called time-to-target
programming). You must specify the ramp rate, or
the ramp time, and the target setpoint, when creating
or modifying a program.
Dwell
The setpoint remains constant for a specified
period.
Step
The setpoint steps instantaneously from its current
value to a new value.
Call
The main program calls another program as a
subroutine. The called program then drives the
setpoint until it returns control to the main program.
This facility is only available on those controllers
capable of storing 4 programs.
End
A program either ends in this segment, or
repeats. You specify which is the case when you
create, or modify, a program (see the final topic in
this chapter). When a program ends, the
programmer is put into either, a continuous Dwell
state with all outputs staying unchanged, or the Reset
state.
Table 5-1 Segment Types