Measurement Computing DASYLab - Manual (Page 63)

DASYLab – Standard Driver 989593 Configuring DASYLab for Daq Devices B-9
Waveform Output (for Daq Devices with Analog Output DACs)
Waveform Output applies to Daq Devices that have Digital-to-Analog Converters (DACs). The DACS
could be built in to the device, or, in certain cases, be added to the device via a DBK46. When applicable,
this feature enables waveform output (streaming) from the DACs and/or the P3 digital port. Selected
channels are placed into waveform mode, while those not selected remain in direct output mode (P3
Digital could also be input) and can be accessed via the standard D/A module.
Notes Regarding Waveform Output:
• When using Waveform Output there is no additional module placed onto the worksheet.
• Waveform output start is synchronized to the ADC trigger (acquisition start).
• Waveforms continue to output until the worksheet ends.
• In series mode the waveforms restart each series.
• If ADC clock is selected as the source then each output update is synchronized with an analog scan
Waveform settings are saved in the Configuration File, but not with the worksheet.
Data Source: Direct Setup
In this mode, 1 wavelength per channel is created as specified. The Frequency of the actual waveforms are
Clock Frequency / Waveform Length. The Waveform Length multiplied by the number of enabled
channels must be less than 100,000.
Waveform Output Control, Direct Setup
Data Source: From File
The From File data source must contain only interleaved data for the exact number of enabled channels.
The file will play out repeatedly. You can specify a section of the file via Header Offset Bytes and the
Number of File Updates to Use (aggregate), or the entire file can be used.