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Application Design & Architecture

Discuss architecture design, queues, notifiers, dynamic events, dynamic VI calls, modular architectures etc. and any issues related to application design and development in LabVIEW.

1,112 topics in this forum

  1. Ruminations on libraries; not sure I understand hierarchical behavior

    By PaulL,
    • 4 replies
    • 4.2k views

  2. event structure into a state machine problem

    By pitermann,
    • 4 replies
    • 4.2k views

  3. Trigger event when DAQ device added/removed

    By MartinMcD,
    • 5 replies
    • 4.2k views

  4. Parallel loops with priorities

    By mike5,
    • 12 replies
    • 4.2k views

  5. Beware of the Get Variant Attribute function

    By John Lokanis,
    • 6 replies
    • 4.2k views

  6. How to split a string to decimal?

    By lovemachinez,
    • 5 replies
    • 4.2k views

  7. SNMP Protocol

    By Prashant S,
    • 5 replies
    • 4.1k views

  8. Network Shared Variables - Programmatically discovering 'live' variables

    By MartinMcD,
    • 4 replies
    • 4.1k views

  9. XY graph with real time data + stored data

    By Anton,
    • 0 replies
    • 4.1k views

  10. Register & Unregister or just Register?

    By Aristos Queue,   
    • 10 replies
    • 4.1k views

  11. Slow Index Array of Classes

    By GregFreeman,   
    • 8 replies
    • 4.1k views

  12. Stepper motor direction

    By Strom,
    • 3 replies
    • 4.1k views

  13. The property node design pattern where you edit a parameter by selecting which one is "active" is a horrible design

    By infinitenothing,
    • 16 replies
    • 4.1k views

  14. How to handle extra data in a queue?

    By george seifert,
    • 9 replies
    • 4.1k views

  15. Image "Streaming" In FPGA

    By AlexA,
    • 3 replies
    • 4k views

  16. 3D Parametric graph

    By wsmaggie512,
    • 1 reply
    • 4k views

  17. Framework for cross platform Automated Testing?

    By Thomas Robertson,
    • 3 replies
    • 4k views

  18. Windows system GDI object limit problem

    By xiongxinwei,
    • 9 replies
    • 4k views
    • VDB
    • VDB

  19. How to generate cursor drag event

    By wallage,
    • 5 replies
    • 4k views

  20. Find a valley in continuous DAQ data

    By george seifert,
    • 8 replies
    • 4k views

  21. soft starter drives & frequencey converter

    By doki,
    • 7 replies
    • 4k views

  22. Create property node

    By mike5,
    • 5 replies
    • 4k views

  23. Any issues using EXEs built with Win7 on a WinXP PC?

    By george seifert,
    • 9 replies
    • 4k views

  24. Tetris in LabView problem with move blocks

    By Kassia,
    • 3 replies
    • 4k views

  25. Fastest way to read-calc-write data with cDAQ

    By volatile,   
    • 5 replies
    • 4k views

  26. Does anyone ever post codes that they are working on?

    By doradorachan,   
    • 7 replies
    • 4k views

  27. Optimizing instrumentation VI with multiple timed loops

    By eberaud,   
    • 6 replies
    • 3.9k views

  28. Architecture templates

    By TheBoss,
    • 5 replies
    • 3.9k views

  29. For Loops, State machines or something else?

    By crichter,
    • 5 replies
    • 3.9k views

  30. Best way to create one app with several sub-apps

    By MartinMcD,
    • 8 replies
    • 3.9k views

  31. Move C code to LabVIEW -- writing to binary file

    By GregFreeman,
    • 7 replies
    • 3.9k views

  32. suggestions on the best design pattern for app?

    By bobby light,
    • 7 replies
    • 3.9k views

  33. Best way to merge 2 case structures with hundreds cases each.

    By Thang Nguyen,
    • 7 replies
    • 3.9k views

  34. Process control architecture

    By EricLarsen,
    • 1 reply
    • 3.9k views

  35. State machine

    By Jerome30,   
    • 4 replies
    • 3.9k views

  36. Prologix GPIB USB

    By Muthaheera,
    • 0 replies
    • 3.9k views

  37. Poly input

    By mike5,
    • 7 replies
    • 3.9k views

  38. Event case interruption

    By boza,
    • 5 replies
    • 3.9k views

  39. DQMH - creating modules, singletons or cloneable help

    By Matt_AM,
    • 4 replies
    • 3.9k views

  40. QSM question

    By SdKfz10,
    • 5 replies
    • 3.8k views

  41. substring color

    By wallage,
    • 1 reply
    • 3.8k views

  42. Reducing load time - half way to a plugin architecture

    By MartinMcD,
    • 5 replies
    • 3.8k views

  43. Structured error handler (SEH)

    By Bobillier,
    • 2 replies
    • 3.8k views

  44. please help me for test pump

    By Hossein,   
    • 8 replies
    • 3.8k views
    • ned
    • ned

  45. Connecting a GUI with the main loop

    By Felipe,
    • 9 replies
    • 3.8k views

  46. Help! My project list a file in the Dependencies that shouldn't be there

    By george seifert,
    • 10 replies
    • 3.7k views

  47. How Efficient are Notifiers?

    By James Mc,
    • 3 replies
    • 3.7k views

  48. Close a passed reference in a subVI?

    By george seifert,
    • 10 replies
    • 3.7k views

  49. Are you "Real" software engineer?

    By ShaunR,
    • 5 replies
    • 3.7k views

  50. Cluster Version control Design question

    By ritesh024,   
    • 3 replies
    • 3.7k views

  51. Displaying data in an variant tree

    By John Lokanis,
    • 3 replies
    • 3.7k views

  52. TCP Host to Multiple cRIO Architecture

    By CraigC,
    • 3 replies
    • 3.7k views

  53. Programatically get IVI class of a control

    By george seifert,
    • 6 replies
    • 3.7k views

  54. Sharing data amongst VIs

    By MartinMcD,
    • 5 replies
    • 3.7k views

  55. Multiple protocols and interfaces

    By jcz,
    • 6 replies
    • 3.7k views

  56. Reference casting dance sanity check

    By todd,
    • 7 replies
    • 3.7k views

  57. How can I convert UFF58?

    By lovemachinez,
    • 0 replies
    • 3.7k views

  58. Fuzzy Logic Controller

    By WC Leong,
    • 1 reply
    • 3.7k views

  59. Hard Crashes, maybe start async call node related?

    By GregFreeman,   
    • 5 replies
    • 3.6k views

  60. vi scripting issue

    By bulebell,
    • 6 replies
    • 3.6k views

  61. storing a value

    By rb767,
    • 13 replies
    • 3.6k views

  62. abort running loop

    By wallage,
    • 3 replies
    • 3.6k views

  63. Dependend Buttons

    By mariuszl2,
    • 5 replies
    • 3.6k views

  64. Resolution of Pseudopaths in LabVIEW (Per-Target Invocation of Packed Project Libraries)

    By Aristos Queue,
    • 1 reply
    • 3.6k views

  65. New icons for Messenger Library

    By drjdpowell,
    • 0 replies
    • 3.6k views

  66. Sharing configuration information between processes

    By Neil Pate,
    • 11 replies
    • 3.5k views

  67. List/links to all advanced architectures

    By John Lokanis,
    • 3 replies
    • 3.5k views

  68. Hierarchical State Machines, Statechart module, and advice

    By MarkCG,
    • 2 replies
    • 3.5k views

  69. Are You a Humble Programmer?

    By brian,
    • 6 replies
    • 3.5k views

  70. Call by Ref Node and Rube Goldberg

    By Daklu,
    • 5 replies
    • 3.5k views

  71. Make an Plot editor: does it already exist?

    By totomalino,
    • 6 replies
    • 3.5k views
    • Cat
    • Cat

  72. External Hardware Pushbutton

    By GraemeJ,
    • 3 replies
    • 3.5k views

  73. Choices for shared data.

    By Mark Zvilius,
    • 7 replies
    • 3.5k views

  74. Converting PID simulation to actual testrig

    By IvoOvermars,
    • 5 replies
    • 3.5k views

  75. Start Asynch Call plus Active X is causing event structure in parallel thread to NOT timeout

    By GregFreeman,
    • 5 replies
    • 3.5k views

  76. Gauge Overlay Alignment

    By crichter,
    • 3 replies
    • 3.5k views

  77. Dataflow Quirk?

    By Mechatroner,   
    • 5 replies
    • 3.5k views

  78. Pass data via user event with reference or actual data?

    By george seifert,
    • 8 replies
    • 3.5k views

  79. 64-bit Installer Issues

    By mje,
    • 6 replies
    • 3.5k views

  80. QMH in a subVi within a QMH type application

    By Walter Gunter,
    • 2 replies
    • 3.4k views

  81. Source code location affects execution speed?!?

    By John Lokanis,
    • 5 replies
    • 3.4k views

  82. Get VI Path

    By jmltinc,   
    • 4 replies
    • 3.4k views

  83. packing and unpacking serial data, fast

    By lecroy,
    • 3 replies
    • 3.4k views

  84. DAQmx channels and tasks managment

    By pawhan11,
    • 2 replies
    • 3.4k views

  85. Benchmarking Labview algorithms

    By AlexA,
    • 4 replies
    • 3.4k views

  86. Software architecture for modular measurement system in a battery and electronics testing laboratory

    By Istvan K,
    • 20 replies
    • 3.4k views

  87. Lessons learned: Reusing Notifier Primitives

    By mje,
    • 6 replies
    • 3.4k views

  88. Same code, new VI, working

    By mike5,
    • 1 reply
    • 3.3k views

  89. Building Lists of Queue References

    By AlexA,
    • 8 replies
    • 3.3k views

  90. Read an ".ini" file and create a certain icon, by using the information given in the ".ini" file.

    By Michael,
    • 3 replies
    • 3.3k views

  91. Discrete Time Kalman Filter for Higher Order Systems

    By Calorified,
    • 1 reply
    • 3.3k views

  92. Lazy Lists in Labview

    By valarauca,   
    • 3 replies
    • 3.3k views

  93. How to trigger user events inside Action Engine (or FGV) between multiple VIs?

    By njsss,
    • 2 replies
    • 3.3k views

  94. front panel indicator lag

    By longzoo,
    • 5 replies
    • 3.3k views

  95. Strange VI Status

    By X___,   
    • 10 replies
    • 3.3k views

  96. Is appropriate to use QSM in robotic arm control?

    By Lin yung-hsiang,   
    • 3 replies
    • 3.3k views

  97. Selecting a Design Pattern

    By task,
    • 5 replies
    • 3.3k views

  98. Is it possible to hand control to an external application?

    By azhew,
    • 6 replies
    • 3.3k views

  99. 2D Array Filling by Boolean

    By Ano Ano,
    • 4 replies
    • 3.3k views

  100. Subject: ArT_Actors: A Step beyond Actor Framework 3.0?

    By Dmitry,   
    • 0 replies
    • 3.3k views
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