Agilent Technologies N5181A/82A, N5183A MXG, E8663B manual Queries for Gpib Using Visa and C

Programming Examples

GPIB Programming Interface Examples

rdVal[ibcntl] = '\0'; // Null character indicating end of array

//Prints signal generator power level

cout<<"Source power (dBm) is : "<<rdVal; cout<<"Press any key to continue"<<endl; cin.ignore(10000,'\n');

ibwrt(sig, ":FREQ:MODE?",11);	// Querys source frequency mode
ibrd(sig, rdVal,100);	// Enters in the source frequency mode
rdVal[ibcntl] = '\0';	// Null character indicating end of array
cout<<"Source frequency mode is "<<rdVal; // Print source frequency mode
cout<<"Press any key to continue"<<endl;
cin.ignore(10000,'\n');
ibwrt(sig, "OUTP OFF",12);	// Turns off RF source
ibwrt(sig, "OUTP?",5);	// Querys the on/off state of the instrument
ibrd(sig,rdVal,2);	// Enter in the source state
rdVal[ibcntl] = '\0';
num = (int (rdVal[0]) -('0'));
if (num > 0){
cout<<"Source RF state is : On"<<endl;
}else{
cout<<"Source RF state is : Off"<<endl;}
cout<<endl;
ibwrt(sig, "*IDN?",5);	// Querys the instrument ID
ibrd(sig, rdVal,100);	// Reads the source ID
rdVal[ibcntl] = '\0';	// Null character indicating end of array
cout<<"Source ID is : "<<rdVal;	// Prints the source ID
cout<<"Press any key to continue"<<endl;
cin.ignore(10000,'\n');
ibwrt(sig, "SYST:COMM:GPIB:ADDR?",20); //Querys source address
ibrd(sig, rdVal,100);	// Reads the source address
rdVal[ibcntl] = '\0';	// Null character indicates end of array

// Prints the signal generator address
cout<<"Source GPIB address is : "<<rdVal;
cout<<endl;
cout<<"Press the 'Local' key to return the signal generator to LOCAL control”<<endl;	cout<<endl;
return 0;
}

Queries for GPIB Using VISA and C

This example uses VISA library functions to query different instrument states and conditions. Launch Microsoft Visual C++ 6.0, add the required files, and enter the following code into your .cpp source file. visaex3.cpp performs the following functions:

• verifies the GPIB connections and interface are functional

Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 75