National Instruments BridgeVIEW Chapter 4 Human Machine Interface

Contents
BridgeVIEW User Manual viii © National Instruments Corporation
Alarms.................................................................................................................3-31
How Do You Configure Alarms for a Tag?......................................... 3-34
Analog Tags...........................................................................3-34
Discrete Tags..........................................................................3-35
Bit Array Tags........................................................................3-35
String Tags.............................................................................3-36
What Is Alarm Deadband on Analog Tags?.........................................3-36
How Do You Keep an Alarm Unacknowledged
after the Alarm Returns to Normal? ..................................................3-37
Auto Ack on Normal..............................................................3-37
User Must Ack .......................................................................3-38
How Do You Configure Other Engine Parameters?......................................................... 3-44
How Do You Turn on Historical and Event Logging at Startup?....................... 3-44
How Do You Set the File Paths for Historical and Events Files?.......................3-44
How Do You Configure Shifts?..........................................................................3-44
How Do You Configure Engine Parameters?.....................................................3-44
How Do You Launch Server Configuration Utilities
from the Tag Configuration Editor?................................................................. 3-46
How Do You Access or Change Tag Configuration Information
in Your Application?......................................................................................................3-46
Chapter 4
Human Machine Interface
What Is an HMI?.................................................................................................................4-1
How Do You Build an HMI?..............................................................................................4-2
Front Panel Objects...............................................................................................4-3
HMI G Wizard......................................................................................................4-3
Generate the Block Diagram ..................................................................4-8
Front Panel Object and Wizard Subdiagram Association ......................4-8
How Do You Customize Front Panel Objects? ..................................................4-12
Control Editor.......................................................................................4-12
Importing Graphics...............................................................................4-13
How Do You Configure Front Panel
Objects Programmatically?................................................................4-15
How Do You Monitor and Control Tags?.........................................................................4-16
Tag Data Type.....................................................................................................4-17
Tags VIs and Alarms and Events VIs.................................................................4-20
How Do the Tags, and Alarms and Events VIs
Affect Startup/Shutdown?..................................................................4-24