HP Sander 16500C manual Sending Commands to the HP 16500C Socket, Parser socket

Programming Over LAN

Sending Commands to the HP 16500C Socket

	Sending Commands to the HP 16500C Socket
	If you are programming in C, you can use a socket to communicate with the
	HP 16500 system. By opening a socket connection, you can send program
	commands directly to the command parser. The HP 16500C system socket
	port identification number is 5025.
	You can also connect directly to the parser socket and type commands
	directly to the HP 16500. The second example uses telnet to connect to the
	parser socket.
Example	The following C program opens a socket and sends a query to request the
	instrument’s identity. If someone else is already connected as control user,
	the socket will eventually close without receiving a response.
	#include <stdio.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	typedef struct sockaddr_in tdSOCKET_ADDR;
	#define PARSER_PORT	5025
	#define SERV_HOST_ADDR	"15.10.96.12"
	#define PARSER_BUFFER_SIZE	100
	char receiveBuffer[PARSER_BUFFER_SIZE],
	*cmdString = { "*IDN?\r\n" };
	main ()
	{

int sockfd, port;

tdSOCKET_ADDR serv_addr; char *addr;

/* Initialize a server socket */ port = PARSER_PORT;

addr = SERV_HOST_ADDR ;

serv_addr.sin_family = AF_INET;

serv_addr.sin_addr.s_addr = inet_addr ( addr ); serv_addr.sin_port = htons ( port );

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