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Chapter 4
Human Machine Inter
face
©
National Instruments Corporation
4-33
BridgeVIEW
User Manual
Figure 4-8.
Using the T
ag Attributes VIs to Initialize Front Panel Indicators, Fram
e 1
1
2
...
132
133
134
135
136
137
138
139
140
141
142
...
454
455
User Manual
1
Important Information
3
Chapter 2
5
Chapter 3
5
Chapter 4
7
Chapter 5
8
Chapter 6
8
Chapter 7
9
Chapter 8
10
Contents
11
Activities
16
About This Manual
17
G Tutorial
18
C:\dir1name\dir2name\filename
20
Related Documentation
21
Customer Communication
21
BridgeVIEW Concepts
22
Part I BridgeVIEW Concepts
23
Introduction
24
Required System Configuration
25
Installation
25
What Is BridgeVIEW?
26
How Does BridgeVIEW Work?
26
G Programming
27
Tag Configuration
28
Data Type
28
Connection
29
Operations
29
Security
30
User HMI Application
31
BridgeVIEW Engine
32
Device Servers
32
Where Should I Start?
33
Examples
34
BridgeVIEW Environment
35
Virtual Instruments
36
Icon/Connector
37
Tools Palette
38
Controls Palette
39
Functions Palette
39
Controls and Indicators
40
Tank Simulation.vi
42
End of Activity 2-1
44
Table 2-1
45
Table 2-2
47
BridgeVIEW\Syslog
48
Figure 2-2
48
Figure 2-3
49
What Is the Tag Browser?
50
Table 2-3
51
What Is the Tag Monitor?
52
Figure 2-5
53
Tag Monitor Utility
53
Table 2-4
54
Figure 2-6
55
Status Details Dialog Box
55
Figure 2-7
55
Figure 2-8
56
Simple/Complex Help View
57
Links to Online Help Files
58
General Attributes
60
Connection Attributes
60
Operation Attributes
60
Scaling Attributes
60
Alarm Attributes
61
Static vs. Dynamic Attributes
61
How Do You Create a Tag?
63
How Do You Edit a Tag?
63
How Do You Delete a Tag?
63
What are Network Tags?
64
How Do You Add Network Tags?
65
How Do You Configure Tags?
68
String Tags
69
Figure 3-5
71
Tag Connection Dialog Box
71
I/O Group Configuration
72
Figure 3-6
73
Server Configuration Options
74
Item Configuration
76
What Is a Memory Tag?
77
Table 3-4
81
What Is Deadband?
82
How Do You Use Deadband to
82
IncreaseEngineThroughput?
82
How Do You Configure a Tag
83
Analog Tags
85
Discrete Tags
86
Bit Array Tags
87
Figure 3-10
88
Table 3-6
88
Bit Array Scaling Examples
88
Table 3-7
90
Auto Ack on Normal
95
Tag Configuration Parameters
96
BridgeVIEW\Activity\Solutions
100
User must Ack
100
Table 3-11
100
End of Activity 3-1
101
How Do You Configure Shifts?
102
Table 3-12
103
Chapter 3 Tag Configuration
104
Human Machine Interface
105
How Do You Build an HMI?
106
Front Panel Objects
107
HMI G Wizard
107
Table 4-1
108
HMI G Wizard Operations
108
Figure 4-1
111
HMI G Wizard Dialog Box
111
Generate the Block Diagram
112
Subdiagram Association
112
BridgeVIEW\Activity
113
Real-Time Trend
113
End of Activity 4-1
115
Control Editor
116
BridgeVIEW
117
End of Activity 4-2
119
Tag Data Type
121
Activity 4-3. Read a Tag
125
Block Diagram
126
End of Activity 4-3
128
Figure 4-4
132
Process View Display VI
132
Tank Temperature
133
Trend Tank Level
133
Figure 4-5
134
Two Trend Display VI
134
Figure 4-6
134
Figure 4-7
136
Figure 4-8
137
Alarms and Events
138
Alarm Priority
139
Alarm Summary
139
Event History
139
Chapter 5 Alarms and Events
140
<ALL>
141
End of Activity 5-1
142
Alarm Summary Display
144
End of Activity 5-2
146
How Do You Configure Logging
147
Historical Data Logging
152
Historical Data VIs
155
BridgeVIEW\Activity\Data
157
End of Activity 6-1
160
Panning Buttons
162
Manual Changes
162
How Do You Change the Y Axis?
163
Has Been Logged to Citadel?
165
BridgeVIEW\
166
Activity\Data
166
End of Activity 6-2
168
Advanced Application Topics
169
Figure 7-1
170
Panel G Wizard
170
Will Be Polled?
171
My Menu Bar.vi
172
My Alarm Summary with Ack.vi
172
End of Activity 7-1
173
Virtual Instrument
174
BridgeVIEW System Control
175
Tag Attributes VIs
177
<none>
179
HI Limit
179
End of Activity 7-2
180
BridgeVIEW Security
181
Table 7-1
182
How Do You Log In and Out?
183
Figure 7-3
184
Privileges Dialog Box
184
Figure 7-4
186
Edit User Accounts Dialog Box
186
Figure 7-5
186
Add a User Account
186
How Do You Modify the List
187
How Do You Export Users to
188
How Do You Import Users from
189
Environment Privileges?
190
Operator Interface Security
190
Figure 7-6
191
Summary Display
192
Administrator
193
Administration
193
My Alarm Summary With Ack.vi
193
Alarm Summary with Ack.vi
193
End of Activity 7-3
195
Chapter 8 Servers
197
Figure 8-1
201
Server Browser
201
Figure 8-2
201
Using Remote OPC Servers
202
Figure 8-4
205
Figure 8-5
206
Creating VIs
209
BridgeVIEW\Activity\Solution
210
Terminals
211
Tip Strips
212
Wire Stretching
213
Selecting and Deleting Wires
213
Bad Wires
214
Activity 9-1. Create a VI
215
Activity
216
End of Activity 9-1
217
Activity 9-2. Document a VI
218
Chapter 9 Creating VIs
219
End of Activity 9-2
220
What is a SubVI?
220
Search Hierarchy
222
Icon and Connector
222
Temp & Vol.vi
225
End of Activity 9-3
226
Activity 9-4. Call a SubVI
227
End of Activity 9-4
228
How Do You Debug a VI?
229
Using Temp & Vol.vi
230
Tank Volume
230
End of Activity 9-5
231
Customizing VIs
232
Front Panel
233
Get Operator Info.vi
235
Chapter 10 Customizing VIs
236
End of Activity 10-1
239
Loops and Charts
240
Chart Modes
241
End of Activity 11-1
242
While Loops
243
End of Activity 11-2
246
Random Signal.vi
247
End of Activity 11-3
248
End of Activity 11-4
249
Shift Registers
250
Chapter 11 Loops and Charts
251
End of Activity 11-5
254
Customize Your Trends
256
End of Activity 11-6
259
For Loops
259
Numeric Conversion
260
Activity 11-7. Use a For Loop
261
End of Activity 11-7
263
Case and Sequence Structures
264
Case Structure
265
End of Activity 12-1
267
Sequence Structures
268
Modifying the Numeric Format
269
Setting the Data Range
270
End of Activity 12-2
273
Formula Node
274
End of Activity 12-3
278
Artificial Data Dependency
278
Front Panel Object Attributes
279
End of Activity 13-1
282
Arrays, Clusters, and Graphs
283
Auto-Indexing
284
Multiplot Graphs
288
End of Activity 14-1
289
Input Array
290
End of Activity 14-2
291
Initialize Array
292
Array Size
293
Array Subset
294
Index Array
295
Extract Column
296
Extract Row
296
End of Activity 14-3
298
What is Polymorphism?
299
Clusters
299
Customizing Graphs
300
Graph Cursors
301
Graph Axes
302
Data Acquisition Arrays
302
End of Activity 14-4
304
Intensity Plots
305
Application Control
306
What is the VI Server?
307
End of Activity 15-1
312
Program Design
313
Chapter 16 Program Design
314
Create the Program
315
Good Diagram Style
316
Use Left-to-Right Layouts
317
Check for Errors
317
Study the Examples
320
HMI Function Reference
321
BridgeVIEW VI Library
323
Alarms and Events VIs
324
Acknowledge Alarm
325
Get Alarm Summary Status
326
Read Alarm Summary
327
Read Event History
331
Read Tag Alarm
335
Call HTV
338
Decimate Historical Trend
340
Decimate Historical Trends
341
Get Historical Tag List
343
Get Historical Trend Info
344
Historical Trend Statistics
345
MM/DD/YYYY
347
DD/MM/YYYY
347
Read Historical Trend
351
Read Historical Trends
353
System VIs
355
Enable Event Logging
356
Enable Printing
358
Engine Launch
359
Engine Shutdown
360
Get Engine Status
361
Get Tag Status Info
362
Post System Error or Event
363
Tag Status Handler
364
Security VIs
366
Check Operator Privileges
367
Get Operator Name
368
Invoke Login Dialog
369
Programmatic Login
370
Programmatic Logout
371
Security Monitor
372
User Account List
373
Tags VIs
373
Read Tag
374
Read Tag (bit array)
376
Read Tag (discrete)
378
Read Tag (string)
380
Trend Tags
382
Write Tag
383
Write Tag (bit array)
384
Write Tag (discrete)
385
Write Tag (string)
386
Write Tag on Change
387
Write Tag on Change (string)
390
Get Analog Tag Alarm Limit
392
Get Group List
395
Get Tag Alarm Enabled
396
Get Tag Attribute
397
Get Tag Bad Status Alarm Info
398
Get Tag Description Group
399
Get Tag I/O Connection Info
400
Get Tag List
401
Get Tag Logging Info
402
Get Tag Range and Units
403
Set Multiple Tag Attributes
404
Set Tag Attribute
405
Citadel and Open Database
406
Connectivity
406
System\Data
407
What is SQL?
408
Threads Table
409
Data Transforms
409
Table B-1
410
Data Transform Commands
410
SQL Examples
411
>= "9:45"
415
FROM Threads
417
Telephone and Fax Support
421
Technical Support Form
422
National Instruments Products
423
Other Products
423
Documentation Comment Form
424
Glossary
425
For i = 0 to n – 1, do
428
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