NI PCI-GPIB+, NI PCIe-GPIB+,

NI PCIe-GPIB+ Low-Profile (LP)

GPIB Analyzers for PCI and PCI Express

Analyzer Hardware

Monitor and control all GPIB lines

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Capture GPIB events including

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event timestamping

Large FIFO for high-speed captures

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Hardware triggering

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Variable handshake rate

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Capture GPIB handshake

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line transitions

Analyzer Software

Easy-to-use graphical application

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Selective GPIB event capture

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Several windows for capture buffer

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and capture display

Several data display formats

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Captured data searchable

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for specified GPIB pattern

Capture event markers for easy

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analysis and benchmarking

Selective captured event printing

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Software can run concurrently

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with GPIB applications

Controller

IEEE 488.2 and HS488 compatible

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Jumperless, software configurable

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Plug-and-play compatible

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Operating Systems

Windows Vista (32- and 64-bit)/XP/2000

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Driver Software (included)

NI-488.2

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GPIB analyzer

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Overview

The NI PCI-GPIB+, PCIe-GPIB+, and PCIe-GPIB+/LP devices include a complete

GPIB analyzer and GPIB controller on a single device. Compatible with HS488,

these devices are lower-cost alternatives to purchasing two separate products

for analyzer and controller functionality. You can use them to troubleshoot

IEEE 488 software and hardware problems or control GPIB instruments. You

can trigger on bus patterns or specific GPIB events and benchmark system

performance with the built-in timestamping capabilities.

Monitoring the Bus

The GPIB analyzer software displays the current state of the GPIB at all times.

The Bus Monitor window shows the real-time state of each of the 16 GPIB

data and control lines. It displays the state of the eight data lines in ASCII,

hexadecimal, and binary formats and the state of the eight control lines in the

binary format.

The window displays the binary format as a series of LEDs, one for each GPIB

line represented.

Each GPIB data and control line has a corresponding toggle switch you can

use to assert one or more of these lines at any time. Using these switches, you

can exercise simple control over the GPIB, such as stepping through the states

of the source or acceptor handshake. The Accept Byte button performs a single

acceptor handshake sequence. The GPIB analyzer software offers several options

for capturing and analyzing activity on the GPIB. You enable the capture by using

the Capture button in the Action window. When the analyzer is capturing, it

continually samples the GPIB and records the occurrence of user-specified GPIB

events. You can configure the analyzer application to record captured information

for any combination of the following GPIB events:

Data transfers

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Command transfers

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Control-line transition

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Handshake-line transition

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Parallel-poll response

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In addition, you can configure the analyzer application to continually

reuse the capture buffer (treat it as a circular buffer) until you stop the

capture operation.

You can configure the analyzer application to participate in the IEEE 488.1

three-wire handshake while capturing. For nonintrusive captures, you can

configure the analyzer application not to participate in the IEEE 488.1 three-

wire handshake while capturing. Besides capturing the standard IEEE 488.1

three-wire handshake, the analyzer application can capture high-speed HS488

data transfers. If desired, you can configure the analyzer application to record

timestamps with each captured event. Recorded timestamps have a

50 ns resolution.

Sometimes you may want to focus a capture operation on a specific GPIB

pattern that occurs at some unknown time. With the analyzer application, you

can define a GPIB trigger condition and select the number of events to record