DADiSP / Dataq File 4.0

Dataq File Import/Export Module

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Dataq File 4.0 is a simple, dialogue-based DADiSP module designed to easily read and write Dataq data files. Dataq files can be of any size and contain any number of channels.

The ReadDataq dialogue automatically reads all the channels in a Dataq WDQ, WDC or WDH file and optionally scales the data and sets the sample rate and engineering units.

The WriteDataq dialogue saves one or more DADiSP series to a WDQ data file. Sample rate, engineering units and conversion parameters are automatically included.

Key features

  • Simple dialogue box user interface.
  • Reads and writes Dataq files of any size.
  • Buffered data I/O to support huge data files.
  • Optimised series processing for fast loading of Dataq files.
  • Reads scaled engineering units data or raw A/D counts.
  • Writes autoscaled data or user specified A/D input range.

New features

DADiSP/Dataq Version 4.0 has been updated to support Dataq WDC and WDH file formats. A simple dialogue box interface makes selecting and reading any file as simple has clicking a button.

Multichannel data can be displayed in multiple windows. The new stripchart feature allows multiple channels to be displayed in a single window with individual axes for each channel. Scroll and zoom operations are automatically synchronised to provide easy cross-channel inspection.

New optimised buffered I/O enables the reading of huge files with minimum memory requirements and optimal speed.

Dataq 4.0 new features summary

  • Updated WDC and WDH file read support.
  • Optional single window stripchart view.
  • Individual Channel Display and Selection
  • Buffered I/O to optimise huge files.
  • Reads and Sets User Specified Channel Names.
  • Reads and Sets Date and Time Information

Dataq file import/export module

A WDQ, WDC or WDH file is a 16-bit binary data file format created by Dataq data conversion hardware and software. Dataq files can contain one or more channels and include amplitude units and scaling parameters to convert raw A/D counts to engineering output data.

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Simple import interface

Importing a Dataq file is as simple as pressing a button and selecting the file. After a file is chosen a summary of the contents is displayed. The data channels are transposed on the fly to take advantage of DADiSP’s optimised column orientation.

Import options

The channels can be loaded into separate Windows or combined into a single Window for display. The data can be converted to original engineering units or imported as raw A/D counts. The transfer buffer size can be specified for read optimisation of large files.


Simple export interface

Multiple DADiSP series can be exported to a single WDQ file simply by selecting a file name and checking a list of Windows to save. Sample rate, engineering units and scaling information for each series are automatically saved.

Export options

Each DADiSP series can be autoscaled to make use of the maximum output resolution or a specific input A/D range can be specified to facilitate use with a specific A/D converter. The transfer buffer size can be specified for write optimisation of large WDQ files.

WDQ/WDC/WDH file format

A WDQ/WDC/WDH file contains 16-bit integer data with 14-bit precision. Sample rate, engineering units and double precision scaling parameters are also saved with the A/D count values. DADiSP/Dataq Dataq Acquisition Device File relies on Dataq’s ActiveX control to isolate format details and eliminate file incompatibilities.

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DADiSP/Dataq File requires DADiSP 6.0 B05 or higher. Contact us for information about updating your current version of DADiSP.

DADiSP/Dataq File 4.0 functions

DADiSP/Dataq File is a fully menu driven module. However, the following functions can be used on a standalone basis to read WDQ/WDC/WDH files and write WDQ files.

Dataq File Functions
rdaqmenu Displays the dialog box interface to read Dataq files.
readdaq Loads a Dataq WDQ/WDC/WDH file.
wdaqmenu Displays the dialog box interface to write Dataq files.
writedaq Saves multiple series to a Dataq WDQ file.

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