Agilent Technologies N5183A MXG, N5181A/82A, E8663B manual 104

Programming Examples

LAN Programming Interface Examples

//NOTE: You must have the Agilent Libraries installed on your computer to run

//this program

//

//PROGRAM DESCRIPTION:This example uses the VXI-11 protocol and VISA to query

//the signal generator for its ID string. The ID string is then printed to the

//screen. Next the signal generator is set for a -5 dBm power level and then

//queried for the power level. The power level is printed to the screen.

//

//IMPORTANT: Set up the LAN Client using the IO Config utility

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

#include <visa.h> #include <stdio.h> #include "StdAfx.h" #include <stdlib.h> #include <conio.h>

#define MAX_COUNT 200

int main	(void)
{
ViStatus	status;// Declares a type ViStatus		variable
ViSession defaultRM, instr;// Declares a type ViSession variable
ViUInt32	retCount;// Return count for string I/O
ViChar buffer[MAX_COUNT];// Buffer for string I/O
status =	viOpenDefaultRM(&defaultRM);	//	Initialize the system
		//	Open communication with Serial
		//	Port 2

status = viOpen(defaultRM, "TPCIP0::19::INSTR", VI_NULL, VI_NULL, &instr);

if(status){// If problems then prompt user

printf("Could not open ViSession!\n"); printf("Check instruments and connections\n"); printf("\n");

exit(0);}

// Set timeout for 5 seconds

viSetAttribute(instr, VI_ATTR_TMO_VALUE, 5000);

// Ask for sig gen ID string

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