Agilent Technologies N5181A/82A, N5183A Gpib Function Statements Command Messages, Abort Function

Programming Examples

GPIB Programming Interface Examples

GPIB Function Statements (Command Messages)

Function statements are the basis for GPIB programming and instrument control. These function statements, combined with SCPI, provide management and data communication for the GPIB interface and the signal generator.

This section describes functions used by different IO libraries. For more information, refer to the NI- 488.2 Function Reference Manual for Windows, Agilent Standard Instrument Control Library reference manual, and Microsoft Visual C++ 6.0 documentation.

Abort Function

The HP Basic function ABORT and the other listed IO library functions terminate listener/talker activity on the GPIB and prepare the signal generator to receive a new command from the computer. Typically, this is an initialization command used to place the GPIB in a known starting condition.

Library	Function Statement	Initialization Command
HP Basic	The ABORT function stops all GPIB activity.	10 ABORT 7
VISA Library	In VISA, the viTerminate command requests a VISA session	viTerminate (parameter list)
	to terminate normal execution of an asynchronous operation.
	The parameter list describes the session and job id.
NI- 488.2	The NI- 488.2 library function aborts any asynchronous read,	ibstop(int ud)
	write, or command operation that is in progress. The
	parameter ud is the interface or device descriptor.
SICL	The Agilent SICL function aborts any command currently	iabort (id)
	executing with the session id. This function is supported
	with C/C++ on Windows 3.1 and Series 700 HP- UX.

Remote Function

The HP Basic function REMOTE and the other listed IO library functions change the signal generator from local operation to remote operation. In remote operation, the front panel keys are disabled except for the Local key and the line power switch. Pressing the Local key restores manual operation.

Library	Function Statement	Initialization Command
HP Basic	The REMOTE 719 function disables the front panel operation	10 REMOTE 719
	of all keys with the exception of the Local key.
VISA Library	The VISA library, at this time, does not have a similar	N/A
	command.
NI- 488.2	The NI- 488.2 library function asserts the Remote Enable	EnableRemote (parameter
	(REN) GPIB line. All devices listed in the parameter list are	list)
	put into a listen- active state although no indication is
	generated by the signal generator. The parameter list
	describes the interface or device descriptor.

Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 63