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Chapter 1
Introduction
©
National Instruments Corporation
1-3
The AT-GPIB/TNT interface contains one GPIB load. You can connect
up to 14 instruments to this interface. If you want to use more than
14 instruments, you can order a bus extender or expander from National
Instruments. Refer to Appendix C,
, for more information
about the hardware specifications and recommended operating
conditions.
GPIB Software Overview
The GPIB software includes a native, 32-bit multitasking driver that is
fully Plug and Play aware. Because the AT-GPIB/TNT is not a Plug and
Play interface, Windows is unable to detect its addition to or removal
from your system dynamically. You must manually inform Windows
about the insertion or removal of the AT-GPIB/TNT from your system.
The GPIB software supports the concurrent use of multiple types of
GPIB hardware. For example, you can communicate with GPIB devices
through both an AT-GPIB/TNT and a PCI-GPIB in the same system at
the same time. The GPIB software is fully integrated into the Windows
operating system. It is configurable through the System applet and
uninstallable through the Add/Remove Programs applet of the Control
Panel.
The GPIB software, along with the GPIB hardware, transforms a
general-purpose PC into a GPIB Talker/Listener/Controller with
complete communications and bus management capability. The GPIB
software includes the following components:
• Device driver
• Diagnostic test utility
• Configuration utility
• Interactive control program
• Utilities for software development
• Language interface libraries for Microsoft Visual C/C++ 2.0 or
later, Borland C/C++ 4.0 or later, and Microsoft Visual Basic 4.0
or later
• Sample applications that use NI-488 functions and NI-488.2
routines
Refer to Appendix C,
, for information about the GPIB
software transfer rates.