Appendix E: Mask/Limit Command Sequence Examples
Command Comment
You can use the following queries to count the hits and get other information about
the test. Total hits should equal the sum of the SEG1 and SEG2 hits.
:MASK:COUN T:HITS?
:MASK:COUNT
:SEG1:HITS?
:MASK:COUNT:SEG2:HITS?
:MASK:COUNT:TOTAL?
:MASK:COUN
T:VIOLATIONS?
:MASK:COUNT:WAVEFORMS?
:MASK:COUNT:VIOLATIONS? should return 1, since stoponviolation was set.
Example 2:
Modifyinganexistingmask
Goal: Modify an existing standard mask, save the modified mask, then recall
the modified mask.
NOTE. Th
is example does not apply for MDO3000 series models.
Command Comment
*RST Resets the oscilloscope to the factory default settings.
:MASK:STANDARD DS1C This command displays a standard DS1C mask.
:MASK:STANDARD? Should return D S1C.
:MASK:CUSTOM COPYACTIVE
This c
ommand copies the currently displayed mask and designates it as a custom mask.
:MASK:STANDARD? Should now return CUSTOM.
You can query to find out the points of each segment:
:MASK:USER:SEG1:PO INTS? Should return -155.3300E-9,420.0000E-3,-41.2100E-9,420.0000E-3,
-6.3400E-9,2.1000,-6.3400E-9,4.6200,82.4200E-9,4.6200,82.4200E-9,4.4100,
17
1.1800E-9,4.4100,171.1800E-9,2.1000,206.0500E-9,420.0000E-3,
320.1700E-9,420.0000E-3,320.1700E-9,6.3000,-155.3300E-9,6.3000
:MASK:USER:SEG2:PO INTS? Should return -155.3300E-9,-2.1000,320.1700E-9,-2.1000,320.1700E-9,
-420.0000E-3,152.1600E-9,-420.0000E-3,152.1600E-9,2.1000,114.1200E-9,
3
.9900,50.7200E-9,3.9900,12.6800E-9,2.1000,12.6800E-9,-420.0000E-3,-155.3300E-9,
-420.0000E-3
:MASK:USER:SEG3:PO INTS? Should return 0.0E+0,0.0E+0 since this mask has only 2 segments.
Next, you can modify the mask.
:MASK:USER:SEG2 DELETE The bottom segment of the mask (segment 2) should disappear from the display.
:MASK:USER:SEG2:PO INTS? Should now return 0.0E+0,0.0E+0.
Create a new segment 2:
:MASK:USER:SEG2:PO INTS
[Enter new points for segment 2
here]
The MASK :USE R:SE G2:POINTS command specifi es the X-Y coordinate pairs of all points in
the specified segment, using waveform units. There can be up to 8 segments.
A new segment 2 should appear on the display.
E-2 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
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