HP 54522A - Page 218

Disk Menu
Load Scope
When a text waveform is read back into the oscilloscope, the header
information can be in any order. Because the oscilloscope converts all
characters to uppercase, the header information can be a mix of uppercase
and lowercase characters. Also, there must be at least one space between a
header and its corresponding data. For example, there must be at least one
space between "Type" and "raw."
If you have modified the header information and a header field is omitted, the
oscilloscope sets that field to the default value. The default values with a
description of the header fields are listed after figure 12-2. If the header
information is incorrect, you will get one of the following error messages.
“Waveform data is not valid" An error was detected in the waveform
data. This error occurs if one of the data points is not a valid floating
point number.
“Header information is not valid" An error was detected in the
header information. This error occurs if one of the header fields or the
header data is incorrect.
If the results are not what you expected after reading an ASCII waveform
back into the oscilloscope, then the oscilloscope is interpreting your data
differently than you expected. Try restoring the ASCII waveform from the
waveform memory back to the disk. By comparing the restored data to what
you had entered into the oscilloscope, you may find the error.
12-7