Agilent Technologies 8163A - Page 210

VISA Programming Examples How to Log Results
210 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition
/* display the values using %g, a float format specifier, you may
also use %e or %f */
for ( i = 0; i < noOfValues; i++)
printf("\t%g\n",logResults[i]);
/* loop, until a key is pressed */
while(!scanf("%c",&c));
/* close the session */
viClose(vi);
}
void checkError(ViStatus session, ViStatus err_status )
{
ViStatus error;
ViChar errMsg[256];
error = viQueryf(session,"SYST:ERR?\n","%t",errMsg);
if (error == VI_ERROR_TMO)
{
printf("System Error!\n") ;
exit(1);
}
else
{
/* only errors should be displayed */
if(errMsg[0] != '+')
{
printf("error:%ld --> %s\n", err_status,errMsg) ;
if
((!strncmp(errMsg,
"- 303,\"Module slot empty or slot / channel invalid\"",
strlen("- 303,\"Module slot empty or slot / channel invalid\"")))
||
(!strncmp(errMsg,
"- 301,\"Module doesn't support this command
(StatCmdUnknown)\"",
strlen(
"- 301,\"Module doesn't support this command
(StatCmdUnknown)\""))))
{
printf("No power meter in slot 1 so exiting\n\n");
exit(1);
}
}
}
}
ViStatus InitVisa ( ViSession *iHandle)