Agilent Technologies 66309B Manuale Utente

D – Example Programs

360   !
370   OUTPUT @Ps;"FETCH:CURR:MAX?"         ! Get more data from previous
measurement.
380   ENTER @Ps;Curr_max
390   PRINT "MAX CURRENT",Curr_max
400   !
410   OUTPUT @Ps;"FETCH:CURR:MIN?"
420   ENTER @Ps;Curr_min
430   PRINT "MIN CURRENT",Curr_min
440   !
450   OUTPUT @Ps;"FETCH:CURR:HIGH?"
460   ENTER @Ps;Curr_hi
470   PRINT "HIGH CURRENT",Curr_hi
480   !
490   OUTPUT @Ps;"FETCH:CURR:LOW?"
500   ENTER @Ps;Curr_low
510   PRINT "LOW CURRENT",Curr_low
520   !
530   END

When this program runs, it returns 100 measurement data points as well as the MIN, MAX, HIGH, and
LOW data in the following format:

.030585   .031869   .0344369  .031655   .0320829  .0325109  .0333669  .0340089
.0320825  .031449   .031227   .031441   .0337949  .0327249  .031869   .031655
.0327249  .031013   .0325109  .0333669  3.09751   3.1814    3.14266   3.13667
3.13817   3.13624   .977283   .0667496  .0245932  .0280171  .031013   .031655
.0331529  .0350788  .0348648  .0327249  .031227   .0327249  .031227   .030799
.031869   .0329389  .030371   .031655   .031869   .0329389  .031869   .0322869
.0320829  .0325109  .0333669  .0340089  .0348648  .0327249  .031227   .0327249
.0320829  .030371   .031449   .031227   .031441   .0337949  .031449   .0333669
.031441   .0337949  .030371   .031655   .031869   .0329389  .031869   .0293011
.031441   .0337949  .0327249  .031869   .031655   .031655   .0320829  .031227
.0322969  .031655   .0327249  .0340089  2.97661   3.18632   3.14523   3.13496
3.13453   3.13731   1.32438   .0836549  .0258772  .0284451  .0275891  .0329389
.0329389  .0333669  .0322969  .0333669
MAX CURRENT         3.18632
MIN CURRENT         .0245932
HIGH CURRENT        3.1371
LOW CURRENT         .0314077

#include <visa.h>
#include <stdio.h>   /* for printf */
#include <stdlib.h>

ViStatus main(void)
{
    ViSession defRM, instrumentHandle;
    ViStatus err;
    ViReal64 measvoltage, meascurrent;
    ViReal64 resultDC, resultRMS, resultMIN, resultMAX, resultHIGH, resultLOW;
        ViReal64 voltArray[10];
        ViInt32  i, numReadings ;

    /* initialize the VISA session */
    err = viOpenDefaultRM(&defRM);
    if (err)