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.
