58 Chapter 2
Programming Examples
GPIB Programming Examples
switch (num) // Based on the decimal value
{
case 1:
printf("Signal Generator Reverse Power Protection
Tripped\n");
printf("/n");
break;
case 2:
printf("Signal Generator Power is Unleveled\n");
printf("\n");
break;
default:
printf("No Power Unleveled condition detected\n");
printf("\n");
}
viClear(vi); // Clears the signal generator
// Prints user information
printf("--------------------------------------------------------------\n");
printf("\n");
printf("Manually set up the sig gen for an unleveled output condition:\n");
printf("\n");
printf("* Select AM modulation\n");
printf("* Select AM Source Ext 1 and Ext Coupling AC\n");
printf("* Turn On the modulation.\n");
printf("* Do not connect any source to the input\n");
printf("* Check signal generator's display for the EXT1 LO annunciator\n");
printf("\n");
printf("Press Enter when ready\n");
printf("\n");
getch(); // Waits for keyboard user input
viPrintf(vi, "STAT:QUES:MOD:ENAB 16\n"); // Enables the Data Questionable
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