I am having LabVIEW activation issues. Summary: 32-bit LabVIEW: System thinks hardware has changed every time machine is booted up. 64-bit LabVIEW: System thinks hardware has changed every time LabVIEW is opened. Details: Behaviour is different between 64bit version and 32bit version.

What is LabVIEW

'National Instruments LabVIEW is a graphical programming platform that helps engineers scale from design to test and from small to large systems. It offers unprecedented integration with existing legacy software, IP, and hardware while capitalizing on the latest computing technologies. LabVIEW provides tools to solve today’s problems—and the capacity for future innovation—faster and more effectively.'

The serial number is a 9 character alpha-numeric key activating both the student edition of LabVIEW and Multisim. Install your software. When installing LabVIEW and Multisim, you need to provide your serial number. If you enter your serial number during installation, activation is completed over the Internet during the installation process.
LabVIEW Download; License Restrictions: Only those identified in the software or per the vendor Notes (Instructions & Documentation): For instructions on installing LabVIEW, please visit NI's support site Expires: March 2021 Support: National Instruments Online Support (you will need the UA LabVIEW serial number when requesting support).

Why use LabVIEW

'NI LabVIEW system design software is at the center of the National Instruments platform. Providing comprehensive tools that you need to build any measurement or control application in dramatically less time, LabVIEW is the ideal development environment for innovation, discovery, and accelerated results. Combine the power of LabVIEW software with modular, reconfigurable hardware to overcome the ever-increasing complexity involved in delivering measurement and control systems on time and under budget.'

General Information/License Agreement Terms & Conditions

Eligibility: Faculty, staff, and students
Versions: 2009 through 2019 download installers available
Platform: Windows, Mac, and Linux
Cost: Free - for driver download only
Computer and Software Requirements
- Visit NI LabVIEW for System Requirements webpage
Order/Download:
License Restrictions: Only those identified in the software or per the vendor
Notes (Instructions & Documentation):

For instructions on installing LabVIEW, please visit NI's support site

Expires: March 2021
Support:

National Instruments Online Support (you will need the UA LabVIEW serial number when requesting support)

Website(s): To learn more..

Using LabVIEW to Send Commands via RS232 to ADR Interfaces

LM335 Temperature Measurement

1. Introduction

The following application demonstrates how LabVIEW can be used with ADR interfaces, or any ASCII based serial data acquisition and control interface. The application is a simple temperature https://everwriters.amebaownd.com/posts/22820917. measurement and plot using an ADR112 and an LM335 solid-state temperature sensor. It is assumed the user has a basic knowledge of LabVIEW, however, no prior experience with LabVIEW is required as long as the user manual is available to help with the generic tasks. Figure 1 shows our final operating panel for the application in operation. The panel allows adjustment of the sample rate via a rotary knob, and displays temperature vs. time in a graph format. A digital reading of present temperature is also provided. The hardware consists of an ADR112 connected to com2, interfaced to an LM335 temperature sensor connected to AN0.

Figure 1: Final Operating Panel

2. Lets Get Started.

Start labview, and an blank panel will appear called untitled.VI. Save the VI as a file called 'START'. We will now place various controls and indicators on the blank panel that will become the applications operating controls and indicators. Using the CONTROLS menu, place on the following on the panel;

A waveform chart from CONTROLS/ARRAY AND GRAPH/WAVEFORM CHART

A numeric knob from CONTROLS/NUMERIC/KNOB

A vertical switch from CONTROLS/BOOLEAN/VERTICAL SWITCH

A numeric indicator from CONTROLS/NUMERIC/DIGITAL INDICATOR.

Arrange the items as shown in Figure 2 using the pointer to add labels by right clicking on each item and typing it in. Change the scale on the waveform chart vertical axis to 0 to 4095 using the hand icon.

Figure 2 : Initial Panel Layout

Use the hot key, CTRL-F to show the control diagram. Arrange the items to the positions shown in Figure 3.

Figure 3 : Initial Control Diagram

3. Building the Program

Before starting to build the program we must understand what we want the program to do for us. We should have a basic knowledge the application hardware and desired operating parameters. This application will require the software to send an 'RD0' command ( followed by a carriage return ) to the ADR112, causing it to respond with a four digit integer number from 0000 to 4095 representing the temperature data in 12-bit format. The data must then be scaled and displayed on the front panel in degrees Celsius in a digital display and in a waveform chart showing temperature history. The basic program will repeat this operation at a rate determined by our adjustable sample rate knob. For this we will start by selecting a WHILE LOOP using FUNCTIONS/STUCTSANDCONSTANTS/WHILELOOP. position the loop as shown in Figure 4.

Figure 4 : Adding the While Loop

We will now add the components required to have the loop execute at an adjustable interval by adding a few more components. Add the following three components;

A wait function timer from FUNCTIONS/TIMEANDDIALOG/WAIT

A multiply function from FUNCTIONS/ARITHMATIC/MULTIPLY

A numeric constant from FUNCTIONS/STUCTSANDCONSTANTS/NUMERICCONSTANT

Position the items as shown in Figure 5 and wire them as shown using the wiring tool. The timer will now delay repeated execution of the loop by 1000 times the setting of the sample rate knob on the front panel.( in ms). If the knob is set at one, the sample rate will be 1 second ( 1000 X 1=1000ms ), if the knob is set at 0.5 the sample rate will be 0.5 seconds ( 1000 X 0.5 = 500ms), etc. The on/off slide switch is wired as shown to enable or disable the loop from running. It will serve as a simple enable/stop function on the front panel.

Figure 5 : The Delay

4. The Sequencer

The software in the loop must now be set up to send and receive ASCII data to the ADR112 via Com2. This is accomplished by using a sequencer and a number of serial port functions provided by LabVIEW. The sequence, as the name implies, allows the execution of code in a specific sequence similar to that of a PLC. The sequencer is a series of frames that code is placed into, that determines the actual execution sequence of the code. Add a sequencer to the control diagram using FUNCTIONS/STUCTSANDCONSTANTS/SEQUENCER. position the sequencer as shown in figure 6.

Figure 6 : The Sequencer

5. Writing Data to the Serial Port

Labview Serial Number