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with the instructions in this manual, may cause interference to radio and television reception. Classification
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following two regulatory agencies:
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This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
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uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a
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Printing Office, Washington, DC 20402.
the user’s authority to operate the equipment under the FCC Rules.
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Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur
du Canada.
Contents
About This Manual
How To Use the Manual Set..........................................................................................ix
Table C-2.ISO 11519-2 Specifications for Characteristics of a CAN_H and
CAN_L Pair of Wires ...........................................................................C-4
PXI-8461 or PXI-8460 and NI-CAN for Windows 98/95viiiwww.natinst.com
About This Manual
This manual contains instructions to help you install and configure your
PXI-8461 (one port and two port) or PXI-8460 (one port or two port) and
the NI-CAN software for Windows 98/95. This manual uses PXI-8461 or
PXI-8460 to refer to both the one port and two port versions of the boards.
This manual assumes that you are already familiar with Windows.
How To Use the Manual Set
Getting Started
Manual
Novice
Users
NI-CAN
User Manual
Application
Development
and Examples
Installation and
Configuration
Experienced
Users
NI-CAN Programmer
Reference Manual
Function
and Object
Descriptions
Use this getting started manual to install and configure your PXI-8461 or
PXI-8460 and the NI-CAN software for Windows 98/95.
Use the NI-CAN User Manual to learn the basics of CAN and how to
develop an application program. The user manual also contains debugging
information and detailed examples.
Use the NI-CAN Programmer Reference Manual for specific information
about each NI-CAN function and object, including format, parameters,
and possible errors.
Conventions
The following conventions appear in this manual:
»The » symbol leads you through nested menu items and dialog box options
to a final action. The sequence File»Page Setup»Options directs you to
pull down the File menu, select the Page Setup item, and select Options
from the last dialog box.
This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash.
boldBold text denotes items that you must select or click on in the software,
such as menu items and dialog box options. Bold text also denotes
parameter names.
italicItalic text denotes variables, emphasis, a cross reference, or an introduction
to a key concept. This font also denotes text that is a placeholder for a w ord
or value that you must supply.
monospaceText in this font denotes text or characters that you should enter from the
keyboard, sections of code, programming examples, and syntax examples.
This font is also used for the proper names of disk drives, paths, directories,
programs, subprograms, subroutines, device names, functions, operations,
variables, filenames and extensions, and code excerpts.
Related Documentation
The following documents contain information that you may find helpful as
you read this manual:
•ANSI/ISO Standard 11898-1993, Road Vehicles—Interchange of
Digital Information—Controller Area Network (CAN) for High-Speed
Communication
•ANSI/ISO Standard 11519-2-1994, Road Vehicles—Low-Speed
Serial Data Communication—Part 2: Low-Speed Controller Area
Network (CAN)
•CAN Specification Version 2.0, 1991, Robert Bosch Gmbh.,
Postfach 500, D-7000 Stuttgart 1
PXI-8461 or PXI-8460 and NI-CAN for Windows 98/95xwww.natinst.com
About This Manual
•CiA Draft Standard 102, Version 2.0, CAN Physical Layer for
Industrial Applications
This chapter lists what you need to get started, provides an overview of the
PXI hardware and the NI-CAN software for Windows 98/95, and describes
optional equipment you can order.
What You Need to Get Started
Make sure you have all of the following items before you attempt to install
the hardware and software:
❑ Windows 98 or Windows 95 installed on your computer
❑ One of the following boards, which is included in your kit:
–PXI-8461 one port
–PXI-8461 two port
–PXI-8460 one port
–PXI-8460 two port
1
❑ 3.5 in., high-density (1.44 MB) disks, which are included in your kit:
–NI-CAN Software for Windows 95/98/NT
Version 1.3
(Disk x of 3)
❑ CAN interface cables that meet the requirements in Appendix B,
Cabling Requirements for PXI-8461 High-Speed CAN or Appendix C,
Cabling Requirements for PXI-8460 Low-Speed CAN.
Hardware Overview
The PXI-8461 or PXI-8460 (one port and two port) is software
configurable and compliant with the PXI Specification and CompactPCI Specification. With a PXI-8461 or PXI-8460 board, you can make your
PXI or CompactPCI chassis communicate with and control CAN devices.
The PXI-8461 physical layer fully conforms to the ISO 11898 physical
layer specification for CAN and is optically isolated to 500 V. The
PXI-8460 physical layer conforms to the ISO 11519-2 physical layer
specification for CAN and is also optically isolated to 500 V. CAN
interfacing is accomplished using the Intel 82527 CAN controller chip. The
PXI-8461 supports a wide variety of transfer rates up to 1 Mb/s. The
PXI-8460 supports rates up to 125 kb/s. The CAN physical layer on the
PXI-8461 and PXI-8460 can be powered either internally (from the board)
or externally (from the bus cable power). The power source for the CAN
physical layer for each port is configured with a jumper.
PXI-8461 boards are available with two physical connector types:
•DB-9 D-Sub
•Combicon-style pluggable screw terminals
PXI-8460 boards are available with DB-9 D-Sub connectors.
The PXI-8461 and PXI-8460 boards use the Intel 386EX embedded
processor to implement time-critical features provided by the NI-CAN
software. The PXI-8461 and PXI-8460 communicate with the NI-CAN
driver through on-board shared memory and an interrupt.
NI-CAN Software Overview
The NI-CAN software includes a native, 32-bit multitasking Windows
driver that is fully Plug and Play aware. The driver components are
dynamically loaded when Windows detects new hardware and dynamically
unloaded when Windows detects the removal of hardware.
The NI-CAN software is fully integrated into the Windo ws operating
system. You can configure it through the Windows Device Manager and
uninstall it through the Add/Remove Programs applet of the Control Panel.
The NI-CAN software supports the concurrent use of multiple CAN
boards. For example, you can use both a PXI-8461 and a PCMCIA-CAN
in the same system at the same time.
The NI-CAN software, along with the PXI hardware, transforms your
computer into a CAN interface with complete communications and bus
management capability. The NI-CAN software includes the following
components:
•Firmware (runs on embedded Intel 386EX)
•Device driver
•Diagnostic test utility
PXI-8461 or PXI-8460 and NI-CAN for Windows 98/951-2www.natinst.com
•Configuration utility
•Language interface libraries for Microsoft Visual C/C++ 2.0 or later,
LabWindows/CVI 4.0 or later, and LabVIEW 4.0 or later
•Example programs that use NI-CAN functions
Optional Programming Tools
Your kit includes the NI-CAN software for Windows 98/95. In addition,
you can order the LabWindows/CVI, LabVIEW, or BridgeVIEW software
from National Instruments.
LabWindows/CVI is an interactive ANSI C development environment for
building test and measurement and instrument control systems. It includes
interactive code-generation tools and a graphical editor for b uilding custom
user interfaces. It also includes built-in libraries for IEEE 488.2, VXI,
RS-232 control, and plug-in data acquisition. When you order
LabWindows/CVI, you also get hundreds of complete instrument drivers,
which are modular, source-code programs that handle the communication
with your instrument so that you do not have to learn the programming
details.
Chapter 1Introduction
LabVIEW is a complete programming environment that departs from the
sequential nature of traditional programming languages and features a
graphical programming environment. It includes all the tools needed for
instrument control, data acquisition, analysis, and presentation. LabVIEW
also includes an extensive instrument driver library.
BridgeVIEW is a radical departure from traditional automation software
that provides a flexible program development system for a variety of
DeviceNet applications including general manufacturing, test, and control.
Leveraging National Instruments patented graphical programming
language G (otherwise known as LabVIEW), BridgeVIEW gives you the
ability to integrate functionality in a way that is not possible with traditional
automation software. In addition to the programming advantages of G,
BridgeVIEW also provides a number of powerful features for the
development of your industrial automation application: graphical HMI
(Human Machine Interface); ease of use; fill-in-the-blank configuration
utilities; HMI G Wizard for simplified HMI development; historical data
collection and trending; alarm and event reporting and logging; security;
and connectivity to PLCs and industrial device networks like DeviceNet.
For more information about LabWindows/CVI, LabVIEW, and
BridgeVIEW, contact National Instruments.
This chapter describes how to install and configure the NI-CAN software
for Windows 98/95 and the PXI-8461 or PXI-8460 hardware.
Install the NI-CAN Software
Install the NI-CAN software before you install your hardware.
1.Select Start»Settings»Control Panel.
2.Double-click on the Add/Remove Programs icon in the Control Panel
to launch the Add/Remove Programs applet. A dialog box similar to
the one in Figure 2-1 appears.
You can use this same applet to uninstall the NI-CAN software at a
later time. Refer to Appendix A, Uninstalling the Hardware
and Software, for more information.
3.Click on the Install button.
4.When prompted, insert the NI-CAN Software for Windows 95/98/NT
(Disk 1 of 3), and click on the Next button to proceed.
5.The setup wizard guides you through the necessary steps to install the
NI-CAN software. You may go back and change values where
appropriate by clicking on the Back button. If at any time you want to
exit the setup, click on the Cancel button.
6.Shut down Windows 98/95 and turn off your computer when you
complete the setup.
Install the Hardware
This section describes how to install your PXI-8461or PXI-8460 hardware.
Check the Configuration of Your PXI-8461 or PXI-8460
If you plan to use your CAN board in a system where bus power is
available, you may want to configure the power supply jumpers on your
board. See Appendix B, Cabling Requirements for PXI-8461 High-Speed
CAN, for more information.
If you are installing a low-speed CAN board, you may need to change the
power supply jumpers or termination resistors. See Appendix C, Cabling
Requirements for PXI-8460 Low-Speed CAN, for more information.
Install Your PXI-8461 or PXI-8460
Caution
package to a metal part of your system chassis to discharge electrostatic energy, which can
damage several components on your board.
PXI-8461 or PXI-8460 and NI-CAN for Windows 98/952-2www.natinst.com
Before you remove the board from the package, touch the antistatic plastic
1.Make sure that your PXI or CompactPCI chassis is turned off. Keep the
PXI or CompactPCI chassis plugged in so that it remains grounded
while you install the PXI board.
2.Choose an unused PXI or CompactPCI 5 V peripheral slot.
3.Remove the filler panel for the peripheral slot you have chosen.
Chapter 2Installation and Configuration
4.Touch a metal part on your chassis to discharge any static electricity
that might be on your clothes or body.
5.Insert the PXI board into the selected 5 V slot. Use the injector/ejector
handle to fully inject the device into place. Figure 2-2 shows how to
install the PXI board into a PXI or CompactPCI chassis.
3
ONSTANDBY
1
2
3
4
5
6
7
2
8
4
1
1 Injector/Ejector Handle (In Down Position)
2 PXI Board
3 PXI Chassis
4 Injector/Ejector Rail
Figure 2-2. Installing the PXI Hardware
6.Screw the front panel of the PXI board to the front panel mounting rail
of the PXI or CompactPCI chassis.
7.Turn on your PXI or CompactPCI chassis and start Windows.
Windows should automatically detect the hardware and associate it
with the NI-CAN software. A New Hardware Found dialog box
appears, then goes away on its own. If the dialog box does not go away ,
select Windows default driver and click on the OK button.