NI-DAQmx: Continuous Digital Pattern Generation
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I. Description:
This example demonstrates how to output a continuous digital pattern on a digital IO board
II. Instructions for Running:
1. Select the Physical Channel to correspond to where your signal is output on the DAQ device.
2. Specify the Rate of the output digital pattern.
3. Enter the digital pattern data.
4. You can change the output array on the fly.
III. Block Diagram Steps:
1. Create an Digital Output Channel.
2. Call the DAQmx (Sample Clock) VI which sets the sample clock rate. Additionally, set the sample mode to continuous.
3. Write the data to the output buffer.
4. Call the Start VI
5. Loop continuously until the user presses the Stop button. Check for errors every 100 ms using the Is Task Done? VI
6. Call the Clear Task VI to clear the Task.
7. Use the popup dialog box to display an error or warning if any.
IV. I/O Connections Overview:
Make sure your signal output terminal matches the Physical Channel I/O Control. For further connection information, refer to your hardware reference manual.
Filename: 200012.vi
Application Software: LabVIEW Base Development System 7.1.1
Language(s): LabVIEW
Hardware Group: Digital I/O (DIO)
Hardware Model: PCI-6533, PCI-6534, PXI-6533, PXI-6534
Driver: NI-DAQmx 7.5
This example demonstrates how to output a continuous digital pattern on a digital IO board
II. Instructions for Running:
1. Select the Physical Channel to correspond to where your signal is output on the DAQ device.
2. Specify the Rate of the output digital pattern.
3. Enter the digital pattern data.
4. You can change the output array on the fly.
III. Block Diagram Steps:
1. Create an Digital Output Channel.
2. Call the DAQmx (Sample Clock) VI which sets the sample clock rate. Additionally, set the sample mode to continuous.
3. Write the data to the output buffer.
4. Call the Start VI
5. Loop continuously until the user presses the Stop button. Check for errors every 100 ms using the Is Task Done? VI
6. Call the Clear Task VI to clear the Task.
7. Use the popup dialog box to display an error or warning if any.
IV. I/O Connections Overview:
Make sure your signal output terminal matches the Physical Channel I/O Control. For further connection information, refer to your hardware reference manual.
Requirements
Filename: 200012.vi
Software Requirements
Application Software: LabVIEW Base Development System 7.1.1
Language(s): LabVIEW
Hardware Requirements
Hardware Group: Digital I/O (DIO)
Hardware Model: PCI-6533, PCI-6534, PXI-6533, PXI-6534
Driver: NI-DAQmx 7.5
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