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3-20 Programming Guide
Remote Data Transfer ESG Family Signal Generators
User File Data Downloads
Sample Command Line :MMEM:DATA "<file name>", #ABC
"<file name>" the name of the user file within the signal generator.
A the number of decimal digits to follow in B.
B a decimal number specifying the number of data bytes in C.
C the binary user file data.
Example 1 :MMEM:DATA "userfile1", #1912S407897
userfile1 provides the user file name as it will appear in the signal generator’s
binary memory catalog.
1 defines the number of decimal digits to follow in “B”.
9 denotes how many bytes of data are to follow.
12S407897 the ASCII representation of the data that is downloaded to the signal
generator. This variable is represented by C in the sample command line.
NOTE Not all binary values can be printed as ASCII characters. In fact, only ASCII
characters corresponding to decimal values 32 to 126 are printable keyboard
characters. The previous example was carefully chosen for simplicity.
Typically, the binary value corresponding to your 8-bit pattern is not
printable.
Therefore, the program written to download and upload user files must
correctly convert between binary and the visible representation of the data
sequence.
Querying the Waveform Data Use the following SCPI command line to upload user file
data from the binary memory catalog to the controller:
:MMEM:DATA? "<file name>"
The output format is the same as the input format.
Selecting Downloaded User Files as the Transmitted Data
From the Front Panel
To select the user file as a continuous stream of unframed data for the active TDMA format
or for a custom modulation, press
Mode > desired format or Custom> Data > User File.
Highlight the desired file in the catalog of user files and press
Select File.
To activate the TDMA format press
Mode > desired format and toggle the format on.
To activate custom modulation press
Mode > Custom and toggle the Custom Off On softkey
on.
Remotely
Execute the following SCPI command to select the user file from the bit memory catalog as
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