Agilent Technologies E1364A service manual Example DC Isolation Test

Example: DC Isolation Test

This example performs the DC Isolation Test for Normally Open and Normally Closed channels to both Common and chassis (earth ground).

/* DC Isolation Test	E1364A */
#include <stdio.h>
#include <sicl.h>
#define ADDR "hpib7,9,15"	/* Address of device */
#define DMM "hpib7,22"
void main (void)
{
INST id, dm;	/* Define id and dm as an instrument */
char reading[256] = {0};	/* Result variable */
int channel, i;

#if defined(__BORLANDC__) && !defined(__WIN32__) _InitEasyWin();

#endif

ionerror(I_ERROR_EXIT);

id = iopen (ADDR);	/* Open instrument session */
dm = iopen (DMM);

iprintf (dm, "PRESET NORM;TRIG HOLD\n"); iprintf (dm, "FUNC OHM;RANGE 1E9\n");

printf ("\n\nConnect DMM HI and LO to E1364A NO and C lines"); getchar ();

iprintf (id, "*RST\n");

ipromptf (id, "*OPC?\n", "%t", reading); ipromptf (dm, "TRIG SGL\n", "%t", reading);

printf ("\nDC Isolation -- Normally Open Channels to Common"); printf ("\n R = %s", reading);

printf ("\n\nConnect DMM HI and LO to E1364A NC and C lines"); getchar ();

iprintf (id, "CLOS (@100:115)\n"); ipromptf (id, "*OPC?\n", "%t", reading); ipromptf (dm, "TRIG:SGL\n", "%t", reading);

printf ("\nDC Isolation -- Normally Closed Channels to Common"); printf ("\n R = %s", reading);

50 Example C Programs Appendix A