Agilent Technologies E4438C - Page 52

Programming Examples
GPIB Programming Examples
Chapter 246
getch();
viPrintf(vi, "POW:AMPL?\n"); // Querys the power level
viScanf(vi, "%t", rdBuffer); // Reads the response into rdBuffer
// Prints the source power level
printf("Source power (dBm) is : %s\n", rdBuffer);
printf("Press any key to continue\n");
printf("\n"); // Prints new line character to the display
getch();
viPrintf(vi, "FREQ:MODE?\n"); // Querys the frequency mode
viScanf(vi, "%t", rdBuffer); // Reads the response into rdBuffer
// Prints the source freq mode
printf("Source frequency mode is : %s\n", rdBuffer);
printf("Press any key to continue\n");
printf("\n"); // Prints new line character to the display
getch();
viPrintf(vi, "OUTP OFF\n"); // Turns source RF state off
viPrintf(vi, "OUTP?\n"); // Querys the signal generator’s RF state
viScanf(vi, "%1i", &num); // Reads the response (integer value)
// Prints the on/off RF state
if (num > 0 ) {
printf("Source RF state is : on\n");
}else{
printf("Source RF state is : off\n");
}
// Close the sessions
viClose(vi);
viClose(defaultRM);
}