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Chapter 4
Human Machine Interface
4-4
© National Instruments Corporation
The HMI G Wizard associates a front panel control or indicator with a tag, 
and generates the necessary Wizard subdiagram for a configuration that 
you specify. Table 4-1 provides a list of front panel objects, and explains 
how the HMI G Wizard operates on each of them.
Table 4-1.  HMI G Wizard Operations
HMI Function
Front Panel Object
Description
Control analog tags
Numeric Control 
Invoke the HMI G Wizard on a numeric control 
to associate an analog output tag value with that 
control. You can set the colors and blink options 
under alarm conditions, and specify the updates 
to happen only when the control value changes.
Display analog 
values
Numeric Indicator 
Invoke the HMI G Wizard on a numeric indicator to 
associate an analog input tag value with that 
indicator. You can set the color and blink options 
under alarm conditions.
Control discrete tags
Acknowledge 
alarms
Boolean Control 
Invoke the HMI G Wizard on a Boolean control to 
associate a discrete output tag value or an alarm 
acknowledgement state (Alarm Acknowledgement) 
with that control. When you invoke the Wizard for 
the first time on a Boolean control, the 
Configuration dialog box is set for Tag Value. To 
change the control association from tag value to 
alarm acknowledgement mode, change the Attach 
Control to:
 ring to Alarm Acknowledgement
Select a set of tags that requires acknowledgement 
when the Control value is set to TRUE. You can set 
blink and color options under Alarm Conditions
A preformatted Acknowledge Alarm button is 
contained in the Boolean Controls palette.