Continuous Acquisition from a Smart TEDS Load Cell Sensor
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I. Description:
This VI configures a TEDS sensor on a given physical channel and then continuously acquires measurements from a load cell (or other bridge sensor).
II. Instructions for Running:
1. Enter the list of physical channels and set the attributes of the load cell channel. The units and custom scale name may need to be configured if the TEDS sensor does not contain information on the units and causes an error when the application runs.
2. Run the VI and do not apply a load until data starts being plotted. This will take a few seconds to start because the TEDS information must be read from the sensor. Once it is read and the TEDS is properly configured for the channel(s), it will be displayed on the TEDS Table.
III. Block Diagram Steps:
1. Configure the TEDS channel and, once complete, parse the data and display it on a table.
2. Create the TEDS AI Custom Voltage with Excitation Task.
3. Set timing parameters. Note that sample mode set to Continuous Samples.
4. Call the Start VI to start the acquisition.
5. Read the Waveform data in a loop until the user hits the stop button or an error occurs.
6. Call the Clear Task VI to clear the Task. Use the popup dialog box to display an error if any.
7. Clear the TEDS information so it is no longer associated with that physical channel.
IV. I/O Connections Overview:
Make sure your signal input terminal matches the Physical Channel I/O control.
V. Recommended Hardware
SCXI-1000 Chassis
SCXI-1520 Module
SCXI-1314T Terminal Block
SCXI-1349 Connector
E Series DAQ Board
VI. Required Software
LabVIEW v7.1 or Higher
NI-DAQmx v7.2 or Higher
TEDS Library for LabVIEW (required for part of code)
Filename: 2332.vi
Application Software: LabVIEW Base Development System 7.1
Language(s): LabVIEW
Hardware Group: Multifunction DAQ (MIO)
Driver: NI-DAQmx 7.1
This VI configures a TEDS sensor on a given physical channel and then continuously acquires measurements from a load cell (or other bridge sensor).
II. Instructions for Running:
1. Enter the list of physical channels and set the attributes of the load cell channel. The units and custom scale name may need to be configured if the TEDS sensor does not contain information on the units and causes an error when the application runs.
2. Run the VI and do not apply a load until data starts being plotted. This will take a few seconds to start because the TEDS information must be read from the sensor. Once it is read and the TEDS is properly configured for the channel(s), it will be displayed on the TEDS Table.
III. Block Diagram Steps:
1. Configure the TEDS channel and, once complete, parse the data and display it on a table.
2. Create the TEDS AI Custom Voltage with Excitation Task.
3. Set timing parameters. Note that sample mode set to Continuous Samples.
4. Call the Start VI to start the acquisition.
5. Read the Waveform data in a loop until the user hits the stop button or an error occurs.
6. Call the Clear Task VI to clear the Task. Use the popup dialog box to display an error if any.
7. Clear the TEDS information so it is no longer associated with that physical channel.
IV. I/O Connections Overview:
Make sure your signal input terminal matches the Physical Channel I/O control.
V. Recommended Hardware
SCXI-1000 Chassis
SCXI-1520 Module
SCXI-1314T Terminal Block
SCXI-1349 Connector
E Series DAQ Board
VI. Required Software
LabVIEW v7.1 or Higher
NI-DAQmx v7.2 or Higher
TEDS Library for LabVIEW (required for part of code)
| Related Links: |
| TEDS Example Programs |
| An Overview of IEEE 1451.4 Transducer Electronic Data Sheets (TEDS) |
| Configuring Class II TEDS Tasks using the SC-2350 Carrier |
Requirements
Filename: 2332.vi
Software Requirements
Application Software: LabVIEW Base Development System 7.1
Language(s): LabVIEW
Hardware Requirements
Hardware Group: Multifunction DAQ (MIO)
Driver: NI-DAQmx 7.1
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