Programming Guide DS2000 Series Digital Oscilloscope

2 Command System RIGOL
:FUNCtion:WANalyze:ECDiff
Syntax
:FUNCtion:WANalyze:ECDiff
Description
Query the current frame difference.
Explanation
During the analysis based on trace, the oscilloscope compares each frame with the
templet to compute the difference value and normalizes each value using the
maximum one; then, compares the normalized value of each frame with the
threshold selected to judge whether the frame is an error frame. “CurFrame Diff”
(relative difference) is the normalized value of the difference between the current
frame and templet.
During the analysis based on pass/fail mask, the oscilloscope compares each frame
with the mask to compute the difference value and recognizes the frame whose
difference value is equal to or larger than the threshold selected as an error frame
and the corresponding “CurFrame Diff” is 100%; otherwise, the frame is juged as
correct and the “CurFrame Diff” is 0%. Note that there are only two “CurFrame Diff”
values (100% and 0%) under the analysis based on pass/fail mask.
Example
:FUNCtion:WANalyze:ECDiff
The query returns 100.
DS2000 Programming Guide 2-217