Future Design MCTB 4.3, Руководство пользователя

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MCTB
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6.1.1 Setting Step Type
Programs are entered as a sequence of steps which define the set point and length of time that a loop should
take to reach the set point (ramp) or remain at a set point (soak). The ramp and soak units can both be set for
hours/minutes or minutes/seconds or one can be set for hours/minutes while the other is set for
minutes/seconds. To begin editing a program step, first select the type of step by pressing the first row in the
list and make the desired selection from the step type pop-up menu.
NOTE: As the step type selection is changed, the list will update to include only the items specific to the
selected step type. This simplifies step entry by only requesting user entry for the items necessary
for proper step operation.
The Ramp selection allows the user to program each loop to ramp to a set point in a specific period of time.
Simply select ramp from the pop-up menu and then enter the loop set point(s) and time.
The
Soak selection allows the user to program each loop to maintain its set point for a specific period of time.
Simply select soak from the pop-up menu and then enter the time desired to maintain the set point.
The
Jump selection allows the user to jump to a previous step in the program and set the number of times
the program should execute the jump before continuing to the following step of the program.
The
End selection allows the user to program the last step of the program. The end step type includes final
set points (if configured) and a cycle count entry to allow the user to enter the number of cycles the program
should repeat itself if desired.
6.1.2 Setting Step Set Points and Time
Set point entry is only provided when entering a ramp step. If
“soak” is selected for the step type, the loop(s)
will remain at the previous set point for the amount of time entered for the step. The set point entered for each
control loop is used as the target set point for the step, i.e., the set point the loop control will arrive at by the
end of the step. Each set point will change independently of the other in order to arrive at the target set point
when the time left in the step reaches zero.
To enter the set point for a loop, touch the set point field for the loop and enter the desired set point. To enter
the step time, touch the time field to enter in the desired time duration. Time is entered as HH.MM or MM.SS
depending upon the selection made on the Time setup screen under the Edit icon pop-up menu. Thus, to enter
a time of 1 hour for example, you would enter a value of 1.00 for one hour and zero minutes. To enter a step
time of 30 minutes, the time entry would be made as 0.30 for 30 minutes. If the time selection was in minutes
and seconds, an entry of 1 minute and 30 seconds would be made as 1.30.