Agilent Technologies FS2010 Manuel de service télécharger pdf (Page 131)

Agilent Signal Generators Programming Guide 123

Programming Examples

LAN Programming Interface Examples

Queries for Lan Using Sockets

lanio.c and getopt.c perform the following functions:

• establishes TCP/IP connection to port 5025

• resultant file descriptor is used to “talk” to the instrument using regular socket I/O mechanisms

• maps the desired hostname to an internal form

•error checks

• queries signal generator for ID

• sets frequency on signal generator to 2.5 GHz

• sets power on signal generator to –5 dBm

• gets option letter from argument vector and checks for end of file (EOF)

The following programming examples are available on the signal generator Documentation CD- ROM

as lanio.c and getopt.c.

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

* $Header: lanio.c 04/24/01

* $Revision: 1.1 $

* $Date: 10/24/01

* PROGRAM NAME: lanio.c

* $Description: Functions to talk to an Agilent signal generator

* via TCP/IP. Uses command-line arguments.

* A TCP/IP connection to port 5025 is established and

* the resultant file descriptor is used to "talk" to the

* instrument using regular socket I/O mechanisms. $

* Examples:

* Query the signal generator frequency:

* lanio xx.xxx.xx.x 'FREQ?'

* Query the signal generator power level:

* lanio xx.xxx.xx.x 'POW?'

* Check for errors (gets one error):

* lanio xx.xxx.xx.x 'syst:err?'

* Send a list of commands from a file, and number them:

* cat scpi_cmds | lanio -n xx.xxx.xx.x

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Agilent Technologies FS2010 Manuel de service Page 131