YOKOGAWA WT1800 User Manual page 133

Precision power analyzer communication interface
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:WAVeform:SEND?
Function
Queries the waveform display data specified by
the :WAVeform:TRACe command.
:WAVeform:SEND?
Syntax
Example
• When :WAVeform:FORMat is set to ASCii:
:WAVEFORM:SEND? -> <NR3>,<NR3>,...
• When :WAVeform:FORMat is set to FLOat:
:WAVEFORM:SEND? -> #4? (4-digit
number of bytes)(data byte
sequence)
Description The format of the waveform display data that is
output varies depending on how the :WAVeform:
FORMat command is set. The different formats
are explained below.
(1) When the format is set to ASCii:
Physical values are output in <NR3> format.The
points are separated by commas.
(2) When the format is set to FLOat:
Physical values are output in IEEE single-
precision floating point (4-byte) format.
The output byte order of the data of each
point follows the order that is set by using the :
WAVeform:BYTeorder command.
:WAVeform:SRATe?
Function
Queries the sample rate of the acquired
waveform.
:WAVeform:SRATe?
Syntax
:WAVEFORM:SRATE? -> 32.000E+03
Example
:WAVeform:STARt
Function
Sets or queries the output start point of the
waveform display data that is transmitted by the :
WAVeform:SEND? command.
:WAVeform:STARt {<NRf>}
Syntax
:WAVeform:STARt?
<NRf> = 0 to 1601
:WAVEFORM:START 0
Example
:WAVEFORM:START? ->
:WAVEFORM:START 0
:WAVeform:TRACe
Function
Sets or queries the target waveform for the :
WAVeform:SEND? command.
:WAVeform:TRACe {U<x>|I<x>|SPEed|
Syntax
TORQue|AUX<x>}
:WAVeform:TRACe?
U<x> and I<x>'s <x> = 1 to 6 (element)
AUX<x>'s <x> = 1 or 2 (AUX input
channel)
:WAVEFORM:TRACE U1
Example
:WAVEFORM:TRACE? ->
:WAVEFORM:TRACE U1
Description • SPEed and TORQue can only be selected
on models with the motor evaluation function
(/MTR) option.
• AUX<x> can only be selected on models with
the auxiliary input (/AUX) option.
IM WT1801-17EN
:WAVeform:TRIGger?
Function
Queries the trigger position of the acquired
waveform.
:WAVeform:TRIGger?
Syntax
:WAVEFORM:TRIGGER? -> 0
Example
Description Because the trigger position is always at the
beginning of the waveform display data, 0 is
returned.
5.22 WAVeform Group
5-101
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App
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