PCI-3488/LPCI-3488/PXI-3488
High-Performance IEEE488 GPIB Interface
Features
Fully compatible with IEEE 488 standard
Supports a 32-bit 3.3 V or 5 V PCI bus (PCI-
3488 & LPCI-3488)
PXI specification Rev. 2.2 compliant (PXI-3488)
Up to 1.5 MB/s data transfer rates
Onboard 1 KB FIFO for read/write operations
Provides driver APIs compatible with NI-488.2*
driver software
Supports industrial-standard VISA library
Interactive utility for testing and diagnostics
Operating Systems
• Windows Vista/XP/2000/2003
Recommended Software
• VB/VC++/BCB/Delphi
• LabVIEW™*
• LabWindows/CVI*
PXI-3488
PCI-3488
LPCI-3488
Introduction
The IEEE488 standard, also known as GPIB, is a
bus interface that connects instruments with a
computer to form an ATE system. GPIB was initially
developed by Hewlett Packard and was recognized
as an IEEE standard in 1978. The IEEE488.1-1978
standard defines the convention for electrical and
mechanical bus characteristics, as well as the state
diagram for each bus function. In 1987, another
standard was derived from the original IEEE488.1-
1978 known as the IEEE488.2-1987. It was
introduced to define data formats, common
commands, and control protocols for instruments.
In general, IEEE488.1 defines hardware
specifications, and IEEE488.2 defines software
specifications. The IEEE488 standard has been
widely accepted by instrument vendors for the past
few decades. Today, GPIB is still the most popular
interface between computer and instruments.
Instrument A
Able to Talk,
Listen and Control
ex: Computer
ADLINK’s GPIB controller interface cards,are fully
compatible with the IEEE488 instrumentation control
and communication standard,and are capable of
controlling up to 14 stand-alone instruments via
IEEE488 cables. They are designed to meet high
performance
requirements
and
maximize
programming portability. They are equipped with 1
KB onboard FIFO and a block transfer mode able to
reach GPIB transfer rates up to 1.5 MB/s. With the
Application Program Interfaces (APIs) that are
compatible with NI-488.2* driver software and VISA
support, ADLINK’s GPIB controller interface cards
provide the greatest compatibility with your existing
applications and instrument drivers.
ADLINK GPIB Data Xfer Rate (Small Block Data)
1000
Data Xfer Rate (KB/s)
Data Xfer Rate (KB/s)
800
600
400
200
0
200
400
600
800
1000
Block Size (Bytes)
ADLINK GPIB Data Xfer Rate (Large Block Data)
1600
1400
1200
1000
800
600
400
200
0
3 handshake
lines
Instrument B
Able to Talk
and to Listen
ex: Oscilloscoae
Instrument C
Able to Listen
ex:Function
Generator
EOI
IFC
SRQ
ATN
REN
DAV
NRFD
NDAC
DI01-8
5system
Management
lines
15 30 45 60 75 90 105 120 135 150
Block Size (KBytes)
8 data lines
Handshake and data signals on the GPIB bus
Performance
ADLINK’s expertise in the PCI and PXI field was
elevated after completing our newest GPIB
controller. The PCI-3488 and LPCI-3488 supports
both 3.3 V and 5 V PCI buses and can be adapted
to most industrial and desktop computers. The PXI-
3488 is compliant with PXI specification Rev. 2.2
and can be installed on standard PXI and
CompactPCI chassis.
A 1 KB onboard FIFO is placed between the GPIB
bus and PCI controller to buffer GPIB read/write
operations. The FIFO eliminates the gap between
the slower GPIB bus (~1.5 MB/s) and the faster PCI
bus (132 MB/s), and dramatically increases overall
system performance.
Instrument C
Instrument D
Instrument C
Instrument B
Instrument A
Linear instrument connection
Star instrument connection
6-0
www.adlinktech.com
Instrument B
Instrument A
GPIB Interface
How ADLINK’s GPIB Interface
Cards Work?
The objective of a test and measurement
application is to test a specific Unit Under Test
(UUT) automatically. A typical automatic testing
system includes various testing programs and
testing equipment connected to the host computer
via a GPIB interface. To manage the connections
with GPIB instruments, testing programs are
usually developed according to the following
model:
ADLINK’s GPIB interface cards work with your
applications in two ways. Its GPIB-32.DLL provides
binary compatibility with the popular NI-488.2* driver
software. The PCI-3488/LPCI-3488/PXI-3488 also
provides VISA library support that can be used most
common instrument drivers written by instrument
vendors. Regardless if you are using VC++, VB,
Delphi, LabVIEW*, or any other T&M ADE,
ADLINK’s GPIB interface cards are the most cost-
effective GPIB solution compatible with all your
applications.
Specifications
GPIB Bus Specification
Up to 14 instruments connected
Maximal 1.5 MB/s data transfer rate
Cable length
• 2 meters between each instrument (suggested)
• 20 meters total cable length
Data transfer mode: 8 bits parallel
Handshake: 3 wire handshake, reception of each
data byte is acknowledged
Certificate
EMC/EMI: CE, FCC Class A
1
Software
Solutions
2
PXI/
CompactPCI
Platforms
3
Modular
Instrument
ADE
• Microsoft VC++/VB
• NI LabVIEW*
• NI LabWindows/CVI*
• Agilent TestExec
Programming Interface
VB/VC++/BCB/Delphi
LabVIEW™*
LabWindows/CVI*
General Specification
I/O connector : IEEE 488 standard 24-pin
Operating temperature : 0 to 55˚C
Storage temperature : -20 to 80˚C
Relative humidity : 5 to 95%, non-condensing
Power Consumption
Power consumption
+3.3 V
+5 V
400 mA (typical)
400 mA (typical)
750 mA (maximum)
750 mA (maximum)
Dimension :
• PCI-3488:
134 mm x 107 mm (not including connectors)
• LPCI-3488:
120 mm x 64.5 mm (not including connectors)
• PXI-3488:
160 mm x 100 mm (not including connectors)
4
PXI/
CompactPCI
Modules
5
Bus
Interface
• Using existing
instrument drivers
via VISA in ADE
VISA
• Direct invocation
to GPIB driver API
functions
6
7
8
GPIB
Interface
Driver API
(GPIB-32.DLL)
• Native driver API
to provide IEEE-
488 functions
PCI/PCI
®
Express
DAQ Cards
GPIB Cards
• ADLINK PCI-3488
/LPCI-3488
• ADLINK PXI-3488
• Agilent 82350B
• NI PCI-GPIB*
• ...
PCI/PCI
®
Express
DIO Cards
9
PC/104-Plus
Modules
Ordering Information
Application Development Environments (ADEs) is
an the environment where applications are written.
These are popular because users can implement
any function needed using textual programming
(ex. VC++/VB, TestExec) or graphical programming
(ex. LabVIEW*) techniques. A vital part of a test
and measurement application is to control and
communicate with GPIB instruments. Two
techniques are generally used to control the GPIB
interface: invoking native driver API or using
existing instrument drivers via VISA.
A native driver API is provided by most GPIB
interface vendors and is usually in the form of ANSI
C functions. For users who need more
comprehensive control over GPIB instruments,
using a driver API with SCPI string commands is a
better choice. For others who want to keep away
from complicated instrument commands,
instrument drivers developed for specific ADEs (ex.
LabVIEW*/TestExec) can significantly simplify the
complexity of instrument control. Most instrument
drivers use a VISA library to control the GPIB
interface and to communicate with instruments.
VISA support is essential in those cases.
Fully Compatible with
Existing Applications
Your
ADLINK’s GPIB interface cards come with complete
software support, including a driver API that is fully
binary compatible with NI-488.2* driver software. All
programs written for the interface cards is based on
GPIB-32.DLL and can be executed on the PCI-
3488/LPCI-3488/PXI-3488 without any modification.
The interface cards also support the VISA library in
order to ensure compatibility with applications
utilizing VISA. ADLINK’s GPIB interface cards are all
“Plug and Play” compatible, thus can work with all
your existing applications.
ADLINK’s PCI-3488 works with your applications in
both ways. Its GPIB-32.DLL, provides the binary
compatibility with the world's most popular NI-488.2*
GPIB commands. The PCI-3488 also provides VISA
library support that can be used with most common
instrument drivers written by instrument vendors.
Regardless if you are using VC++, VB, Delphi,
LabVIEW*, or any other T&M ADE, PCI-3488 is the
most cost-effective GPIB solution compatible with all
your applications.
PCI-3488
High-Performance IEEE488 GPIB Interface
card for PCI bus
LPCI-3488
High-Performance IEEE488 GPIB Interface
card for low-profile PCI bus, shipped with an
additional low-profile bracket.
PXI-3488
High-Performance IEEE488 GPIB Interface
card for PXI/CompactPCI bus
ACL-IEEE488-1
IEEE 488 standard cable, 1 meter length
ACL-IEEE488-2
IEEE 488 standard cable, 2 meter length
ACL-IEEE488-4
IEEE 488 standard cable, 4 meter length
ACL-IEEE488-8
IEEE 488 standard cable, 8 meter length
10
ISA DAS/
DIO Cards
11
System
Product
12
Wiring
Termination
Boards
13
Motion, HSL,
Vision, COM
& GEME
Product names mentioned herein are used for
identification purposes only and may be trademarks and/or
registered trademarks of their respective companies.
*NI, LabVIEW, and LabWindows/CVI are trademarks or
registered trademarks of National Instruments Corporation
or its subsidiaries in the United States and other countries.
14
Remote I/O
Modules
15
Industrial
Computers
www.adlinktech.com
6-1
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