:WAVeform:CGRade:XML:READ?

:WAVeform CGRade Commands

Query Syntax

:WAVeform:CGRade:XML:READ? <source_waveform>
<source_waveform> Parameter
Source Waveform Parameter
Channel CHAN<connection1-8>_<ch1-8>; With connection 1, the "1_" part is optional, and you can simply use CHAN<ch1-8>
Differential channel DIFF{1:8}{A|C}
Common mode channel CMOD{1:8}{A|C}
Function output FUNCtion{1:64}
Waveform memory WMEMory{1:8}
Color-grade gray-scale memory CGMemory{1:8}
Trace
(used for displaying S-parameters.)		 TRACe{128}

Description

Eye Waveform Data

Learn about CGS waveform data.

Directly returns the database waveform values from color-grade gray-scale memory or from channels, differentials, common modes, functions, or traces. The returned data is in the internal color-grade gray-scale waveform format. This is the same data format used when saving waveform data to Infiniium's file system (.cgsi) using the :DISK:EYE:SAVE and :DISK:EYE:SAVE:FTYPe commands. The returned data is comprised of an ASCII XML header followed by binary waveform data. The waveform's vertical and horizontal scaling parameters are included. The advantage of using this query is that the returned waveform data is read directly by your program without first having to command Infiniium to save the data to a file.

Once the data is returned, your program can save the data to a file or write the data into one of Infiniium's eight color-grade gray-scale memories using the :WAVeform:CGRade:XML:WRITe? command.

Python Example

Example Script

For an example Python script, see: Transfer CGGS data to/from oscilloscope

This script demonstrates Infiniium's :WAVeform:CGRade:XML:READ? and :WAVeform:CGRade:XML:WRITe? queries. The color-grade gray-scale database is:

  1. Returned from Infiniium's Connection 1 Channel 1.
  2. Written into Infiniium's color-grade gray-scale memory 2.
  3. Saved to a color-grade gray-scale file (.cgsi) in the script folder.