National Instruments BridgeVIEW 用户手册
Chapter 7
Advanced Application Topics
© National Instruments Corporation
7-3
You can configure the Panel G Wizard to store the file path as a relative
path or as an absolute path. If the VI that you connect to the button is
generally kept in a path that is relative to the top-level VI, you should
select the Relative path setting.
path or as an absolute path. If the VI that you connect to the button is
generally kept in a path that is relative to the top-level VI, you should
select the Relative path setting.
How Do You Configure Security
with the Panel G Wizard?
The Panel G Wizard can create code that disables or hides the button if the
operator does not have sufficient security access. You determine the access
level required in the Panel G Wizard dialog box. Security is covered later
in this chapter.
operator does not have sufficient security access. You determine the access
level required in the Panel G Wizard dialog box. Security is covered later
in this chapter.
How Do You Configure When a Button
Will Be Polled?
Like all user interface controls in BridgeVIEW, front panel buttons are
monitored using a polling loop mechanism. Polling will occur either until
the BridgeVIEW Engine shuts down, or, if the Always option is selected,
until the VI stops.
monitored using a polling loop mechanism. Polling will occur either until
the BridgeVIEW Engine shuts down, or, if the Always option is selected,
until the VI stops.
Activity 7-1. Use the Panel G Wizard
Your objective is to use the Panel G Wizard to attach buttons to VIs that
you have created, to the HTV, and to a Login prompt. You will use VIs that
you created in Chapters 4, 5, and 6 in this exercise. You will use
you have created, to the HTV, and to a Login prompt. You will use VIs that
you created in Chapters 4, 5, and 6 in this exercise. You will use
mytanks.scf
in the
BridgeVIEW\Activity
directory.
1.
Place a front panel button on a new front panel, as shown below. Click
on the button text with the labeling tool and name the button
on the button text with the labeling tool and name the button
Alarms
.
Pop up on the button and make sure the Mechanical Action… is set to
Latch when Released.
Latch when Released.