Benutzerhandbuch für National Instruments BridgeVIEW

Benutzerhandbuch (English)

Benutzerhandbuch

Inhaltsverzeichnis

BridgeVIEW User Manual
1
Support
2
- Internet Support
  2
- Bulletin Board Support
  2
- Fax-on-Demand Support
  2
- Telephone Support (USA)
  2
- International Offices
  2
- National Instruments Corporate Headquarters
  2
Important Information
3
- Warranty
  3
- Copyright
  3
- Trademarks
  3
- WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS
  3
Contents
4
About This Manual
17
- Organization of This Manual
  17
  - BridgeVIEW Concepts
    17
  - G Tutorial
    18
  - Appendices, Glossary, and Index
    19
- Conventions Used in This Manual
  20
- Related Documentation
  21
- Customer Communication
  21
Part I BridgeVIEW Concepts
22
Chapter 1 Introduction
24
- Welcome to BridgeVIEW
  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
    - General
      28
    - Connection
      29
    - Scaling
      29
    - Operations
      29
  - Alarms
    29
  - Events
    30
  - Historical Data Logging and Extraction
    30
  - Security
    30
- What Is the BridgeVIEW System Architecture?
  31
  - User HMI Application
    31
  - BridgeVIEW Engine
    32
  - Device Servers
    32
- Where Should I Start?
  33
Chapter 2 BridgeVIEW Environment
35
- What Is G?
  35
- How Does G Work?
  35
  - Virtual Instruments
    36
    - Front Panel
      36
    - Block Diagram
      37
    - Icon/Connector
      37
  - Tools Palette
    38
  - Controls Palette
    39
  - Functions Palette
    39
  - Controls and Indicators
    40
    - Numeric
      40
    - Boolean
      41
    - String
      41
    - Tag
      42
- BridgeVIEW Environment Project Menu
  44
- What Is the BridgeVIEW Engine Manager?
  46
- What Are System Errors and Events?
  49
- What Is the Tag Browser?
  50
- What Is the Tag Monitor?
  52
- How Do You Access Online Help?
  57
  - Simple/Complex Help View
    57
  - Links to Online Help Files
    58
Chapter 3 Tag Configuration
59
- What Is a Tag?
  59
  - Tag Attributes
    59
    - General Attributes
      60
    - Connection Attributes
      60
    - Operation Attributes
      60
    - Scaling Attributes
      60
    - Alarm Attributes
      61
  - Static vs. Dynamic Attributes
    61
- What Is the Tag Configuration Editor?
  61
- How Do You Configure Tags?
  68
- How Do You Configure Other Engine Parameters?
  102
- How Do You Access or Change Tag ConfigurationInformation in Your Application?
  104
Chapter 4 Human Machine Interface
105
- What Is an HMI?
  105
- How Do You Build an HMI?
  106
- How Do You Monitor and Control Tags?
  120
- General Principles of G HMI Programming
  129
Chapter 5 Alarms and Events
138
- What are Alarms and Events?
  138
  - Alarm States
    138
  - Alarm Limit
    138
  - Alarm Priority
    139
  - Alarm Summary
    139
  - Event History
    139
- How Do You Display Alarm Summary Information?
  139
- How Do You Display Event History Information?
  143
- How Do You Acknowledge Alarms?
  143
- How Do You Configure Logging andPrintingofAlarmsandEvents?
  147
Chapter 6 Historical Data Logging and Extraction
152
- What Is a Trend?
  152
  - Real-Time Trend
    152
  - Historical Trend
    152
- What Is Citadel?
  152
- How Do You Log Historical Data?
  153
  - How Do You Configure Historical Logging?
    154
- How Do You Extract and View Data fromHistoricalLogFiles?
  155
  - Historical Data VIs
    155
  - Historical Trend Viewer (HTV)
    160
Chapter 7 Advanced Application Topics
169
- How Do You Build an HMI with Multiple Panels?
  169
- BridgeVIEW System Control
  175
  - System VIs
    175
- Tag Attributes VIs
  177
- BridgeVIEW Security
  181
  - Environment Security
    181
  - Operator Interface Security
    190
    - How Do You Limit User Access to HMI Objects?
      191
Chapter 8 Servers
196
- What Are BridgeVIEW Device Servers?
  196
- How Do You Install and Configure a Device Server?
  197
- How Do You Use OPC Servers with BridgeVIEW?
  200
  - Using Remote OPC Servers
    202
- How Do You Use DDE Servers with BridgeVIEW?
  204
- How Do You View BridgeVIEW Server Configuration?
  204
  - Registered Server Device and Item Parameters
    206
- How Do You Develop an IA Device Server?
  207
Part II G Tutorial
208
Chapter 9 Creating VIs
209
- What is a Virtual Instrument?
  209
- How Do You Build a VI?
  209
  - VI Hierarchy
    209
  - Controls, Constants, and Indicators
    210
  - Terminals
    211
  - Wires
    211
    - Tip Strips
      212
    - Wire Stretching
      213
    - Selecting and Deleting Wires
      213
    - Bad Wires
      214
  - VI Documentation
    217
- What is a SubVI?
  220
  - Hierarchy Window
    220
    - Search Hierarchy
      222
  - Icon and Connector
    222
  - Opening, Operating, and Changing SubVIs
    227
  - Front Panel
    227
  - Block Diagram
    228
- How Do You Debug a VI?
  229
Chapter 10 Customizing VIs
232
- Set Window Options
  232
- SubVI Node Setup
  232
  - Front Panel
    233
  - Block Diagram
    234
Chapter 11 Loops and Charts
240
- What is a Structure?
  240
- Charts
  241
  - Chart Modes
    241
  - Faster Chart Updates
    242
  - Overlaid Versus Stacked Plots
    242
- While Loops
  243
  - Front Panel
    244
  - Block Diagram
    245
  - Mechanical Action of Boolean Switches
    246
  - Timing
    248
  - Preventing Code Execution in the First Iteration
    249
- Shift Registers
  250
  - Front Panel
    252
  - Block Diagram
    253
  - Using Uninitialized Shift Registers
    254
  - Front Panel
    256
  - Block Diagram
    257
- For Loops
  259
  - Numeric Conversion
    260
  - Front Panel
    261
  - Block Diagram
    262
Chapter 12 Case and Sequence Structures and the Formula Node
264
- Case Structure
  265
  - Front Panel
    265
  - Block Diagram
    266
  - VI Logic
    267
- Sequence Structures
  268
  - Front Panel
    268
    - Modifying the Numeric Format
      269
    - Setting the Data Range
      270
  - Block Diagram
    270
- Formula Node
  274
  - Front Panel
    276
  - Block Diagram
    277
- Artificial Data Dependency
  278
Chapter 13 Front Panel Object Attributes
279
- Front Panel
  281
- Block Diagram
  281
Chapter 14 Arrays, Clusters, and Graphs
283
- Arrays
  283
  - How Do You Create and Initialize Arrays?
    283
    - Array Controls, Constants, and Indicators
      284
  - AutoIndexing
    284
  - Front Panel
    285
  - Block Diagram
    286
  - Multiplot Graphs
    288
  - Using Auto-Indexing to Set the For Loop Count
    291
  - Using Array Functions
    291
    - Build Array
      291
    - Initialize Array
      292
    - Array Size
      293
    - Array Subset
      294
    - Index Array
      295
  - Front Panel
    297
  - Block Diagram
    298
  - Efficient Memory Usage: Minimizing Data Copies
    298
- What is Polymorphism?
  299
- Clusters
  299
- Graphs
  300
  - Customizing Graphs
    300
    - Graph Cursors
      301
    - Graph Axes
      302
  - Data Acquisition Arrays
    302
  - Front Panel
    302
  - Block Diagram
    303
- Intensity Plots
  305
Chapter 15 Application Control
306
- What is the VI Server?
  307
- Front Panel
  309
- Block Diagram
  310
Chapter 16 Program Design
313
- Use Top-Down Design
  313
  - Make a List of User Requirements
    313
  - Design the VI Hierarchy
    313
  - Create the Program
    315
- Plan Ahead with Connector Panes
  315
  - SubVIs with Required Inputs
    316
- Good Diagram Style
  316
  - Watch for Common Operations
    316
  - Use Left-to-Right Layouts
    317
  - Check for Errors
    317
  - Watch Out for Missing Dependencies
    319
  - Avoid Overuse of Sequence Structures
    320
  - Study the Examples
    320
Appendix A HMI Function Reference
321
- Error Handling in the BridgeVIEW VI Library
  321
  - Errors Reported by the BridgeVIEW Engine
    321
  - Errors Not Reported by the BridgeVIEW Engine
    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
  - Historical Data VIs
    337
    - 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
    - Historical Trends to Spreadsheet
      347
    - Historical Trends to Spreadsheet File
      349
    - Read Historical Trend
      351
    - Read Historical Trends
      353
  - System VIs
    355
    - Enable Event Logging
      356
    - Enable Historical Data Logging
      357
    - Enable Printing
      358
    - Engine Launch
      359
    - 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 (bit array)
      388
    - Write Tag on Change (discrete)
      389
    - Write Tag on Change (string)
      390
  - Tag Attributes VIs
    391
    - Get Analog Tag Alarm Limit
      392
    - Get Bit Array Tag Alarm Setting
      393
    - Get Discrete Tag Alarm Setting
      394
    - 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
Appendix B Citadel and Open Database Connectivity
406
- What is ODBC?
  406
  - Configuring the ODBC Driver
    406
- What is SQL?
  408
- How Do You Access Citadel Data?
  409
  - Threads Table
    409
  - Data Transforms
    409
  - SQL Examples
    411
  - Queries Using Specific Applications
    412
Appendix C Customer Communication
420
- Electronic Services
  420
- Telephone and Fax Support
  421
- Technical Support Form
  422
- BridgeVIEW Hardware and Software ConfigurationForm
  423
  - National Instruments Products
    423
  - Other Products
    423
- Documentation Comment Form
  424
Glossary
425
- A
  425
- B
  426
- C
  426
- D
  427
- E
  428
- F
  428
- G
  429
- H
  429
- I
  429
- L
  430
- M
  430
- N
  430
- O
  430
- P
  431
- R
  432
- S
  432
- T
  433
- U
  434
- V
  434
- W
  435
Index
436
- A
  436
- B
  437
- C
  439
- D
  440
- E
  441
- F
  442
- G
  442
- H
  443
- I
  445
- J
  445
- L
  445
- M
  446
- N
  446
- O
  446
- P
  447
- R
  447
- S
  448
- T
  450
- U
  454
- V
  454
- W
  455
- X
  455
Figures
13
- Figure 21. Engine Manager Display
  46
- Figure 22. Engine Manager with System Events Displayed
  48
- Figure 23. Server Browser
  49
- Figure 24. Tag Browser Utility
  50
- Figure 25. Tag Monitor Utility
  53
- Figure 26. Status Details Dialog Box
  55
- Figure 27. Select Tags to Monitor Dialog Box
  55
- Figure 28. Tag Monitor Preferences Dialog Box
  56
- Figure 31. Tag Configuration Editor
  62
- Figure 32. Flowchart of Server/Client Interaction
  64
- Figure 33. Select Tags for Network Import Dialog Box
  65
- Figure 34. General Attributes Dialog Box
  69
- Figure 35. Tag Connection Dialog Box
  71
- Figure 36. I/O Group Configuration Dialog Box
  73
- Figure 37. Tag Operations Dialog Box
  80
- Figure 38. Analog Tag Scaling Dialog Box
  85
- Figure 39. Scaling for Discrete Tag Configuration
  87
- Figure 310. Scaling for Bit Array Tag Configuration
  88
- Figure 311. Alarms for Analog Tag Configuration
  92
- Figure 312. Alarms for Discrete Tag Configuration
  93
- Figure 313. Alarms for Bit Array Tag Configuration
  94
- Figure 41. HMI G Wizard Dialog Box
  111
- Figure 42. Control Dialog Box
  116
- Figure 43. Monitor Tag Value and Alarm VI
  130
- Figure 44. Process View Display VI
  132
- Figure 45. Two Trend Display VI
  134
- Figure 46. Initializing the Waveform Chart Indicator for a Real-Time Trend Display
  134
- Figure 47. Using the Tag Attributes VIs toInitializeFrontPanelIndicators, Frame 0
  136
- Figure 48. Using the Tag Attributes VIs toInitializeFrontPanelIndicators, Frame 1
  137
- Figure 51. Event Configuration Dialog Box
  147
- Figure 61. Historical Logging Configuration Dialog Box
  154
- Figure 62. Historical Trend Viewer
  160
- Figure 63. Select Tags Dialog Box
  161
- Figure 71. Panel G Wizard
  170
- Figure 72. Access Levels Dialog Box
  183
- Figure 73. Privileges Dialog Box
  184
- Figure 74. Edit User Accounts DialogBox
  186
- Figure 75. Add a User Account
  186
- Figure 76. Using the Security Monitor VI to Control Visibility
  191
- Figure 81. Server Browser
  201
- Figure 82. View Server Information Dialog Box
  201
- Figure 83. Browse OPC Servers on Network Dialog Box
  202
- Figure 84. Server Browser
  205
- Figure 85. View Server Information Dialog Box
  206
Tables
15
- Table 21. BridgeVIEW Project Menu Items (Continued)
  44
- Table 22. Engine Manager Field Descriptions
  47
- Table 23. Tag Browser Field Descriptions (Continued)
  51
- Table 24. Tag Monitor Utility Field Descriptions
  54
- Table 31. General Configuration Attributes
  70
- Table 32. Connection Configuration Attributes
  72
- Table 33. I/O Group Configuration Attributes
  74
- Table 34. Operations Configuration Attributes (Continued)
  81
- Table 35. Scaling Configuration Attributes (Continued)
  83
- Table 36. Bit Array Scaling Examples
  88
- Table 37. Alarms Configuration Attributes (Continued)
  89
- Table 38. Events with Alarm Deadband = 0.0% (Continued)
  94
- Table 39. Events with Alarm Deadband = 1.0%
  95
- Table 310. Configuration Settings for Activity 3-1 (Continued)
  98
- Table 311. Configuration Modifications for Activity 3-1 (Continued)
  99
- Table 312. Configurable Memory Allocation Parameters
  103
- Table 41. HMI G Wizard Operations (Continued)
  108
- Table 51. Tag Configuration Editor Event Configuration Selections (Continued)
  147
- Table 52. Event Configuration, Log, and Print Format Selections
  149
- Table 61. Parameters You Can Configure for Historical Logging
  154
- Table 62. Panning Button Functions
  162
- Table 71. Assignable BridgeVIEW Privileges (Continued)
  181
- Table 72. Abbreviations Used to Enable Privileges for a User (Continued)
  188
- Table B1. Data Transform Commands
  410

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