Appendix D: Waveform Transfer (WFMOutpre and CURVe Query) Examples
WFMOutpre? Query results
Explanation
PT_FMT Y
This value indicates the format of the data points in the waveform record. In this case,
the value represents YT format. This is query only – the returned values can be Y for YT
format or ENV for envelope format (min/max pairs). (If you would like to determine only this
value, use the
query.)
PT_ORDER LINEAR
This value is always
LINear
.
XUNIT "s"
This value indicates the units of the x-axis of the waveform record. This is determined by the
horizontal settings for the waveform source. Typically, this value is “s”, representing seconds.
When using the math waveform as a source, the value can be “s” or “Hz”. This is query only.
(If you would like to determine only this value, use the
query.)
XINCR 4.0000E-9
This value indicates the time, in seconds, or frequency, in hertz, between data points in the
waveform record. This is query only. (If you would like to determine only this value, use
the
query.)
XZER0 -20.0000E-6
This value indicates the time, in seconds, or frequency, in hertz, of the
fi
rst data point in the
waveform record. This time or frequency is relative to the time of the trigger, which is always
0. So, this XZEro time or frequency can be negative. This is query only. (If you would like to
determine only this value, use the
query.)
PT_OFF 0
This is a query provided only for compatibility with performance oscilloscopes. The
returned value is always 0. (If you would like to determine only this value, use the
query.)
YUNIT "V"
This value indicates the vertical units of data points in the waveform record. This can be
any of several string values, depending upon the vertical units of the source waveform –
in this case, volts. This is query only. (If you would like to determine only this value, use
the
query.)
YMULT 4.0000E-3
This value indicates the multiplying factor to convert the data point values from digitizing
levels to the units speci
fi
ed by the
WFMOUTpre:YUNit
command. This is query only. (If
you would like to determine only this value, use the
query.)
YOFF 0.0E+0
This value indicates the vertical position of the source waveform in digitizing levels. There
are 25 digitizing levels per vertical division. This is query only. (If you would like to determine
only this value, use the
query.)
YZERO 0.0E+0
This value indicates the vertical offset of the source waveform in units speci
fi
ed by the
WFMOUTpre:YUNit
command. This is query only. (If you would like to determine only this
value, use the
query.)
Example 2: Digital Waveform
Goal: Transfer 25 points of digital channel waveform data from the oscilloscope
to a PC.
Command
Comment
:DATa:SOUrce CH1_D5
:DATa:START 1
:DATa:STOP 25
:WFMOutpre:ENCdg ASCii
:WFMOutpre:BYT_Nr 1
MSO54, MSO56, MSO58, MSO58LP Programmer
D-3
Содержание MSO54
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Страница 8: ...Preface iv MSO54 MSO56 MSO58 MSO58LP Programmer ...
Страница 26: ...Command Syntax 2 10 MSO54 MSO56 MSO58 MSO58LP Programmer ...
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Страница 937: ...Appendix A Character Set MSO54 MSO56 MSO58 MSO58LP Programmer A 1 ...
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Страница 996: ...Appendix D Waveform Transfer WFMOutpre and CURVe Query Examples D 18 MSO54 MSO56 MSO58 MSO58LP Programmer ...