Agilent Technologies N5183A, N5181A/82A Programming Examples Gpib Programming Interface Examples

Programming Examples

GPIB Programming Interface Examples

•resets the signal generator

•queries the signal generator for various settings

•reads the various settings

The following program example is available on the signal generator Documentation CD- ROM as niex3.cpp.

//*************************************************************************************

//PROGRAM NAME: niex3.cpp

//PROGRAM DESCRIPTION: This example demonstrates the use of query commands.

//The signal generator can be queried for conditions and instrument states.

//These commands are of the type "*IDN?" where the question mark indicates

//a query.

//

//*************************************************************************************

#include "stdafx.h"
#include <iostream>
#include "windows.h"
#include "Decl-32.h"
using namespace std;
int GPIB0=	0;	// Board handle
Addr4882_t Address[31];		// Declare a variable of type Addr4882_t
int main()
{
int sig;		// Declares variable to hold interface descriptor
int num;
char rdVal[100];		// Declares variable to read instrument responses
sig = ibdev(0, 19, 0, 13, 1, 0); // Open and initialize a device descriptor
ibloc(sig);		// Places the signal generator in local mode
ibclr(sig);		// Sends Selected Device Clear(SDC) message
ibwrt(sig, "*RST", 4);		// Places signal generator in a defined state
ibwrt(sig, ":FREQuency:CW?",14);		// Querys the CW frequency
ibrd(sig, rdVal,100);		// Reads in the response into rdVal
rdVal[ibcntl] = '\0';		// Null character indicating end of array

cout<<"Source CW	frequency is "<<rdVal;			// Print frequency of signal generator
cout<<"Press any	key to continue"<<endl;
cin.ignore(10000,'\n');
ibwrt(sig, "POW:AMPL?",10);		//	Querys the signal generator
ibrd(sig, rdVal,100);		//	Reads	the signal generator power level

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