Racal Instruments 3156B, Руководство пользователя

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3156B User Manual
Programming Reference 5-58 Racal Instrument © 2005
Ri3156b_set(query)_pulse_fall _time
Description
Programs only the fall time of the standard pulse wave. This function does NOT select the pulse wave as the
active waveform. Note: The frequency, amplitude, and offset may be varied by using the following functions:
ri3156B_set_frequency()
ri3156B_set_amplitude()
ri3156B_set_offset()
You may set all pulse wave parameters at once, by using the ri3156B_apply_pulse_wave() function, or by using
the individual functions.
Channel Dependency: Independent
C Syntax
ViStatus ri3156b_set_pulse_wave_fall_time (ViSession instrHandle, ViReal64 fallTime)
ViStatus ri3156b_query_pulse_wave_fall_time (ViSession instrHandle, ViReal64 * fallTime)
Parameters
Name
Variable
Type
Description
instrHandle ViSession The Instrument Handle is used to identify the unique
session or communication channel between the driver
and the instrument. If more than one instrument of the
model type is used, this will be used to differentiate
between them. Note that the initialize function may be
used to associate multiple instrument handles with a
single instrument.
fallTime
ViReal64
Programs the fall time portion of the pulse waveform.
Valid range: 0 to 9.99 (%)
Default: 10
Return Values
Displays the return status of the function call. If the function was successful, it will return a status of
VI_SUCCESS, otherwise it will return an error code. Passing the error code into the function
"ri3156B_error_message()" will return a string describing the error.