2Getting Started
Capturing Data with the :DIGitize Command
The :DIGitize command captures data that meets the specifications set up by the :ACQuire subsystem. When the digitize process is complete, the acquisition is stopped. The captured data can then be measured by the instrument or transferred to the controller for further analysis. The captured data consists of two parts: the waveform data record, and the preamble.
N O T E | Ensure New Data is Collected | |
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| When you change the oscilloscope configuration, the waveform buffers are cleared. Before | |
| doing a measurement, send the :DIGitize command to the oscilloscope to ensure new data | |
| has been collected. | |
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| When you send the :DIGitize command to the oscilloscope, the specified | |
| channel signal is digitized with the current :ACQuire parameters. To obtain | |
| waveform data, you must specify the :WAVeform parameters for the SOURce | |
| channel, the FORMat type, and the number of POINts prior to sending the | |
| :WAVeform:DATA? query. | |
| Set :TIMebase:MODE to MAIN or DELayed when using :DIGitize | |
N O T E | ||
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| :TIMebase:MODE must be set to MAIN or DELayed to perform a :DIGitize command or to | |
| perform any :WAVeform subsystem query. A "Settings conflict" error message will be | |
| returned if these commands are executed when MODE is set to ROLL or XY. Sending the | |
| *RST (reset) command will set the time base mode to main. | |
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| The number of data points comprising a waveform varies according to the | |
| number requested in the :ACQuire subsystem. The :ACQuire subsystem | |
| determines the number of data points, type of acquisition, and number of | |
| averages used by the :DIGitize command. This allows you to specify exactly | |
| what the digitized information contains. |
22 | Agilent 6000 Series Oscilloscopes Programmer’s Quick Start Guide |