Operator`s manual

Signametrics 124
Value Meaning
DMM_OKAY
Operation successfully completed.
Negative Value
Error code
Example
DMMSetACCapsLevel(0, 0.35); // Set stimulus to 0.35V peak
DMMSetACVSource
SMU2060  SMU2064 
Description Set the ACV source output level and frequency.
#include "SMU2060.h"
#include "USBDMMUser.h"
int DMMSetACVSource(int nDmm, double ldVolts, double ldFreq)
Remarks This function sets the AC voltage source to RMS amplitude of ldVolts, and the frequency
to ldFreq. The DMM must be in VAC_SRC operation for this function to execute
properly. Reading the DMM (DMMRead, DMMReadStr) will return the measurement
of the output voltage. This function acts on the main 12 bit source DAC. Two ranges are
available in VAC_SRC mode, the 0.9 V and the 7 V.
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
ldVolts
double AC RMS voltage to be set. Range: 0.05 to 7.25 V RMS
ldFreq
double Frequency to be set; 0.5Hz to 200 kHz
Return Value Integer error code.
Value
Meaning
DMM_OKAY
Operation successfully completed.
Negative Value
Error code
Example
double reading; int I;
DMMSetACVSource(0, 7.0, 1000.0); // source 7V and 1kHz
DMMSetSourceMode(0, CLOSED_LOOP); // Closed loop mode
for(I=0;I<100;I++) DMMRead(0,&reading); // update 100 times