Learn LABVIEW-G-SCRIPTING with Real Code Examples
Updated Nov 27, 2025
Code Sample Descriptions
1
LabVIEW G – Add Two Numbers
Control A → Add Node (+)
Control B → Add Node (+)
Add Node Output → Indicator Result
Simple block diagram that adds two numeric controls and outputs the sum.
2
LabVIEW G – While Loop Counter
While Loop
Shift Register (Initial = 0)
Inside Loop: SR + 1 → SR
Loop Condition: Stop Button
A While Loop that increments a shift-register counter until a stop button is pressed.
3
LabVIEW G – Random Number Generator
Loop → Random Number Node → Wait (200ms) → Indicator
Generates a random number every 200ms and updates a numeric indicator.
4
LabVIEW G – Temperature Threshold Warning
Simulated Temp Input → Greater? Node → LED Indicator
Reads simulated temperature and triggers an LED warning above a threshold.
5
LabVIEW G – Event Structure Button Handler
Event Structure
Event: Button Value Change
Inside Event → Toggle LED Value
Uses an event structure to detect button press and toggle an LED.
6
LabVIEW G – Simple State Machine
While Loop + Case Structure
State (Shift Register)
INIT → RUN → STOP
STOP → Exit Loop
Implements a 3-state machine: INIT → RUN → STOP using a case structure.
7
LabVIEW G – Data Logging to CSV
Open/Create File → Write to Spreadsheet File → Close File
Appends simulated data values to a CSV file every loop iteration.
8
LabVIEW G – Simple Analog Filter
Simulated Analog Input → Lowpass Filter VI → Output Graph
Uses a built-in Lowpass Filter VI to process simulated analog samples.
9
LabVIEW G – Elapsed Timer Logic
Start Button → Tick Count (ms)
Loop: (Tick Count - Start Time) → Display
Measures elapsed time since the user pressed a Start button.
10
LabVIEW G – PID Controller Simulation
Process Variable → PID VI (Setpoint, Kp, Ki, Kd) → Control Output → Graph
Simulates a PID loop controlling a process variable with LabVIEW’s PID VI.