Measurement-computing GPIB-488 Bedienungsanleitung PDF herunterladen (Seite 34)

Chapter 3 GPIB 488.1 Library Reference

GPIB-488 3-21 Programming Reference Manual

IBFIND

Opens a board or device and returns the handle associated with a given name.

Syntax

C boarddev = ibfind (char name[])

Parameters

name is the string specifying the board or device name.

Returns

boarddev will contain the device handle associated with the given name. If a negative

number is returned, this indicates that the call has failed. This most often happens when the

specified name is does not match the default/configured board or device name.

ibsta will contain a 16-bit status word as described in Appendix B, IBSTA.

iberr will contain an error code, if an error occurred.

Usage Notes

This call is also opens the device/board and initializes the software parameters to their default

configuration settings. See

ibonl.

Using

ibfind to obtain device descriptors is useful only for compatibility with existing

applications. New applications should use

ibdev instead of ibfind.

Example

This example returns the device handle associated with the device named "DEV5" to the

variable

dmm. If the device name is not found, the program will jump to an error routine.

C Board = ibfind("GPIB0");

if (Board < 0) error();

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Measurement-computing GPIB-488 Bedienungsanleitung Seite 34