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{scroll-pagetitle}Set Menu System{scroll-pagetitle}
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Plant operators may adjust control scheme parameters (_e.g.,_ the process set point, controller gains) via the _FAC-2100_ _Set Menu_ system. The Set Menu is accessed with the SET button and parameter values are adjusted with the UP and DOWN arrow buttons (reference [The Front Panel|PDG:The Front Panel (FAC2100)]). The adjustment of control scheme parameters with the set menu system is equivalent to the circuit shown in figure below. It consists of a signal generator with a single adjustable output level. It is that output level that is adjusted from the set menu. Note that the generator may be an analog generator (which has many output states) or a digital generator (with exactly two output states).


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{scroll-align-center}!2 setmenu.JPG|border=0! 
{*}Typical 'Set' menu object*{scroll-align-center}

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The set menu system works as follows:
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# Press the SET button to enter the set menu (note: the amount of time the button must be held before the set menu appears is adjustable in software.)
# If there is only one adjustable signal generator in the controller's program, then go to step 5.
# The top two lines All user-defined alphanumeric text messages on the top two display lines are paused while the controller is in the set menu system. of the alphanumeric display present the user with a list of parameter names (such as 'PID gain' or 'set point'). Use the UP and DOWN arrow buttons to scroll through this list.
# {anchor:_Ref412378095}If you wish to adjust a parameter, press the SET button again\-\-the current parameter value will then be displayed\-\-and go to step 5. Otherwise, if you wish to exit the set menu, scroll down the list until the 'Press SET to exit set menu' message is displayed. Press the SET button and the device will exit the SET menu.
# Press the UP arrow button to increase the parameter value; press the DOWN arrow button to decrease the parameter value. If an arrow button is held, the parameter value will begin to change at a rapid rate (note: the repeat rate for a held key is adjustable in software.)
# When the desired value has been reached, press the SET button to record the change. If there is only one adjustable signal generator, the controller will exit the SET menu. Otherwise, the controller will remain in set menu mode and will again display the list of adjustable parameters. That is, the controller will return to step 3.
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[!FA_Inclusion_Library^FAprev.png!|PDG:Display Elements (FAC2100)] [!FA_Inclusion_Library^FAnext.png|PDG:align=right!|Set Menu System with Password Protected Engineering Level Parameters (FAC2100)]
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