Future Design MCTB 4.3, User Manual

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MCTB
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The programmed time delay is activated (timing begins) when the alarm setpoint is exceeded. The alarm delay
will stop timing (and reset) once the process value returns to non-alarm level. If the time delay times out and
the alarm setpoint is still exceeded, the alarm will activate.
4.6 Math/Logic Configuration
The Math/Logic Configuration screen is accessed from the Setup menu. The screen provides access to all
math/logic equations as entered on the Control Setup screen. When more than one equation is configured, the
left/right scroll buttons will be provided at the top right of the screen. These buttons can be used to scroll
through all available equations in order to view/edit settings for each.
Math Type
The
Type drop down menu is used to select what the equation will be used for. Selections include Math, Logic
and timer. When Math is selected, the result of the equation can be shown on the Overview screen in the
runtime application if the Result Shown selection is turned on. The result of the calculation would then also be
selectable for plotting on each of the four user configurable trends as well as a selectable point for data logging.
Logic Type
When Logic is selected, the equation will be utilized to obtain a true/false result which will then be set to the
selected output. The output will be activated when the result of the equation is true and turned off when the
result of the equation is false.