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How Do I Create a Virtual TEDS for My Transducer or Sensor?



Primary Software:
Primary Software Version: 8.2
Primary Software Fixed Version: N/A
Secondary Software: N/A
Hardware: Multifunction DAQ (MIO)

Problem:
I have a custom sensor with no available Virtual TEDS to download.  How can I create a Virtual TEDS for use with this sensor in Measurement & Automation Explorer (MAX) and LabVIEW?

Solution:
If no TEDS are available for your sensor, and you do not know the manufacturer of your sensor or have a custom sensor follow the instructions below to create a virtual TEDS file.

First download the IEEE standards TEDS templates attached below for various sensor types. (virtual TEDS_IEEE_Templates.zip)

Unzip this file to your working directory or your virtual TEDS project folder.  These templates allow you to configure different parameters according to the IEEE standards for creating the virtual TEDS files.  The IEEE templates included are:

  • IEEE template 25.vi - Accelerometer or force transducer
  • IEEE template 30.vi – High Level Voltage Output Sensor
  • IEEE template 31.vi – Current Loop Output Sensor
  • IEEE template 33.vi – Bridge Sensor
  • IEEE template 35.vi – Strain Gauge
  • IEEE template 36.vi - Thermocouple
  • IEEE template 37.vi - RTD
  • IEEE template 38.vi - Thermistor

Create a block diagram similar to the figure below.  To do this you will need the TEDS VI Library.  This library can be downloaded to be installed into LabVIEW here.

NOTE: This library was written in LabVIEW 7.1 and may not work in newer versions of LabVIEW.


Figure 1: Example Code to Create Accelerometer or Force Transducer Virtual TEDS


Above is a sample LabVIEW VI to create a virtual TEDS configuration for an Accelerometer or Force Transducer based off of the Template 25 VI. To include a specific IEEE Template VI, right click on the block diagram and select Functions»Select subVI... and selecting your specific TEDS transducer from the IEEE Virtual TEDS Templates Library.

NOTE: Make sure the correct template is selected for the template ID enum input of the TEDS_Build Empty Template VI.

A sample front panel of template 25 referenced in Figure 1 is shown below as Figure 2.

Figure 2: IEEE template VI for Accelerometer or Force Transducer TEDS


It is important that all parameters specified in the template are filled with appropriate values.

For information on how to configure and use your virtual TEDS file in MAX and LabVIEW please refer the related links below.


Related Links:
KnowledgeBase 3CO9BO8O: How to Install the TEDS Library into LabVIEW verview
White Paper: IEEE 1451.4 Standard Overview

Attachments:
Edit TEDS Accel or FT Example.zip
Virtual_TEDS_IEEE_Templates.zip




Report Date: 04/01/2006
Last Updated: 05/17/2017
Document ID: 3W0BS72M

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