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Agilent Technologies 66311B, D, 66309B, 66111A manual Assigning the Gpib Address in Programs, 165

Models: 66111A 66309B 66311B D

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D

Example Programs

Introduction

The example programs in this section are intended to show how some of the same dc source functions can be programmed to each of the following GPIB interfaces:

1.National Instruments GPIB-PCII Interface/Handler

2.BASIC Language System

Assigning the GPIB Address in Programs

The dc source address cannot be set remotely. It must be set using the front panel Address key. Once the address is set, you can assign it inside programs. The following example is for BASIC and assumes that the GPIB select code is 7, the address is 6, and the dc source is assigned to the variable PS.

1070 ASSIGN @PS TO 706

!Agilent BASIC Interface

For systems using the National Instruments DOS driver, the address is specified in the software configuration program (IBCONFIG.EXE) and assigned a symbolic name. The address then is referenced only by this name within the application program (see the National Instruments GPIB documentation).

National Instruments GPIB Driver

Your program must include the National Instruments header file DECL.BAS. This contains the initialization code for the interface. Prior to running any applications programs, you must set up the interface with the configuration program (IBCONF.EXE).

Your application program will not include the dc source’s symbolic name and GPIB address. These must be specified during configuration (when you run IBCONF.EXE). Note that the primary address range is from 0 to 30. The dc source expects a message termination on EOI or line feed, so set EOI w/last byte of Write. It is also recommended that you set Disable Auto Serial Polling.

All function calls return the status word IBSTA%, which contains a bit (ERR) that is set if the call results in an error. When ERR is set, an appropriate code is placed in variable IBERR%. Be sure to check IBSTA% after every function call. If it is not equal to zero, branch to an error handler that reads IBERR% to extract the specific error.

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Agilent Technologies 66311B, 66309B, 66111A Assigning the Gpib Address in Programs, National Instruments Gpib Driver, 165
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66111A, 66309B, 66311B, D specifications

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