West Control Solutions CALogix User Manual
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PROGRAMMER
FUNCTION OVERVIEW
The Programmer function enables CALogix to control applications that require setpoint changes over time. Examples of
this are ramp changes where setpoint is gradually increased at a specified rate until a target level is reached or step
changes which are instantaneous. These can be separated by soak periods during which the process is held at a constant
value. Each individual time interval of the program or segment, together with it’s associated moving setpoint value can be
stored as a unique program. An example is shown below.
Time (segments)
Setpoint
Ramp
Soak
Step
In addition to those settings that determine the segment profile, it is also necessary to set program start values, together
with the preferred ramp rate time units for each individual program. At the end of a sequence, a program can be arranged
to repeat (loop), either a specified number of cycles, or continuously. Only one loop can be included in a program. When
the program is running, CALogix-sw indicates progress through the sequence of segments and can additionally be
interrogated for further segment information. It is also possible to Call an already existing program as a sub program that
can be inserted as a segment of another program.
The programmer functions can be fully configured using the programmer interface in CALogix-sw.
ACCESSING THE PROGRAMMER INTERFACE
1.
Click on the
icon in the main toolbar.
2.
Programmer interface
should now be open .
THE PROGRAMMER INTERFACE
The programmer interface is shown below.
CREATING A PROGRAM.
Note
: If a program is running in any module on the carrier the programmer interface will only be available in view mode
only. All programs have to be in an OFF state to enable editing of a profile.(see stopping a program)
1. Open
the
programmer interface.
2.
Select module tab corresponding to required PID module.
3.
On toolbar click on programmer menu select new program.
4.
When pointer is in profile chart area right click mouse.
5. Mouse
over
add segment
and the following menu should be shown.
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