HP 132A Manuel d'utilisateur télécharger pdf (Page 163)

Chapter 3 Programming Your Universal Counter for Remote Operation

Elements of SCPI Commands

Programming Guide 3-95

To Use Limits to Filter Data Before Measuring Statistics (Turbo

C) (Continued)

IOSPOLL(ctr,&status); /* Serial poll counter for status */

puts("Transferring and processing data");

sendhp(":INIT:CONT OFF"); /* Set counter to Run */

sendhp(":CALC3:AVERAGE:TYPE MIN;:CALC3:DATA?");

IOENTERS(ctr,minimum,&length); /* Get the data from the counter */

sendhp(":CALC3:AVERAGE:TYPE MAX;:CALC3:DATA?");

IOENTERS(ctr,maximum,&length); /* Get the data from the counter */

sendhp(":CALC3:AVERAGE:TYPE MEAN;:CALC3:DATA?");

IOENTERS(ctr,mean,&length); /* Get the data from the counter */

sendhp(":CALC3:AVERAGE:TYPE SDEV;:CALC3:DATA?");

IOENTERS(ctr,sdev,&length); /* Get the data from the counter */

printf("Mean frequency = %s",mean);

printf("Minimum frequency = %s",minimum);

printf("Maximum frequency = %s",maximum);

printf("Standard deviation = %s",sdev);

printf("Press a key to continue\n");

getch();

}

/* Function to send command to HP 53131A */

void sendhp(hpib_cmd)

char *hpib_cmd;

{

char hpcmd[80]; /* Variables used by function */

int length;

strcpy(hpcmd,hpib_cmd);

length=strlen(hpcmd);

error=IOOUTPUTS(ctr,hpcmd,length); /* Send command to HP 53131A */

if (error!=0)

printf("Error during HP-IB: %d Command %s\n",error,hpcmd);

}

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HP 132A Manuel d'utilisateur Page 163