Thermcraft XST-6-0-36-3V - Manual (Page 220)

Programmer Operation Installation and Operation Handbook
5-2 2416 Controller
WHAT IS SETPOINT PROGRAMMING?
Many applications need to vary temperature, or process value, with time. Such applications
need a controller which varies a setpoint as a function of time. All 2416 programmer models
will do this.
The setpoint is varied by using a setpoint program. Within each 2416 controller there is a
software module, called the programmer, which stores one, or more, such programs and
drives the setpoint according to the selected program. The program is stored as a series of
‘ramp’ and ‘dwell’ segments, as shown below.
Fig 5-1 Setpoint profile
(If the 8-segment programmer is being used, then the information in the next paragraph does not apply.)
In each segment you can define the state of up to two outputs, each of which can be used to
trigger external events. These are called event outputs and can drive either relay, logic, or
triac outputs, depending on the modules installed.
A program is executed either, once, repeated a set number of times, or repeated continuously.
If repeated a set number of times, then the number of cycles must be specified as part of the
program.
Time
Setpoint