Peak PCAN-USB Hub User manual

USB to CAN Interface
PCAN-USB
User Manual

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Products taken into account
Product Name Model Item Number
PCAN-USB IPEH-002021
PCAN-USB opto-decoupled Galvanic isolation for CAN
interface
IPEH-002022
The cover picture shows the product PCAN-USB. The case of the opto-decoupled
version has a similar profile, but is longer.
Product names mentioned in this manual may be the trademarks or registered
trademarks of their respective companies. They are not explicitly marked by “™” and
“®”.
© 2009 PEAK-System Technik GmbH
PEAK-System Technik GmbH
Otto-Roehm-Strasse 69
64293 Darmstadt
Germany
Phone: [phone]
Fax: [phone]
www.peak-system.com
[e-mail]
Issued 2009-05-18

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Contents
1Introduction 4
1.1 Properties at a Glance 4
1.2 System Requirements 5
1.3 Scope of Supply 5
2Installation 6
2.1 Installing the Software and the PCAN-USB
Adapter 6
2.2 Connecting the CAN Bus 7
2.3 Supplying External Devices via the CAN
Connector 8
3Operation 11
3.1 Status LED 11
3.2 Removing the Adapter Safely 11
4Software 13
4.1 CAN Monitor PCAN-View for Windows 13
4.2 Linking Own Programs with PCAN-Light 15
5Technical Specifications 16
Appendix A Certificates 18
A.1 CE PCAN-USB 18
A.2 CE PCAN-USB opto-decoupled 19
Appendix B Quick Reference 20

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1Introduction
The PCAN-USB adapter provides one CAN channel at computers
with USB ports. Software interfaces exist for different operating
systems, so programs can easily access a connected CAN bus.
Tip: At the end of this manual (Appendix B) you can find a
Quick Reference with brief information about the installation
and operation of the PCAN-USB adapter.
1.1 Properties at a Glance
Adapter for USB port (USB 1.1, compatible to USB 2.0)
Power supply via USB connection
1 High-speed CAN channel (ISO 11898-2)
CAN transfer rates up to 1 Mbit/s
CAN specifications 2.0A and 2.0B
CAN connection 9-pin D-Sub male, pin assignment according to
specification CiA 102
Galvanic isolation up to 500 V for the CAN interface (only PCAN-
USB opto-decoupled)
5-Volt power supply at the CAN connector connectible by solder
bridges, e.g. for external bus converter
Device drivers and programming interfaces for operating
systems Windows (from 2000 onwards) and Linux, for older
versions and other operating systems on request

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Note: This manual describes the use of PCAN-USB adapter with
Windows. You can find device drivers for Linux and the corres-
ponding application information on the provided CD in the
directory branch Develop and on our website under
www.peak-system.com/linux.
1.2 System Requirements
The following prerequisites must be given, so that the PCAN-USB
adapter can be used properly:
A vacant USB port (USB 1.1 or USB 2.0) at the computer or at a
USB hub connected to the computer
Operating system Windows (Vista 32-bit, XP SP2, 2000 SP4) or
Linux (incl. 64-bit versions)
1.3 Scope of Supply
The scope of supply consists of the following parts:
Adapter PCAN-USB (plastic case with CAN connector and a
cable for USB connection)
CD with software (drivers, utilities), programming examples, and
documentation

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2Installation
This chapter deals with the software setup for the PCAN-USB adap-
ter under Windows, the connection of the adapter to the computer,
and the connection of a CAN bus.
2.1 Installing the Software and the PCAN-
USB Adapter
Setup the driver before connecting the PCAN-USB adapter to the
computer for the first time.
Do the following to install the driver:
1. Make sure that you are logged in as user with administrator
privileges (not needed for normal use of the PCAN-USB
adapter later on).
2. Insert the supplied CD into the appropriate drive of the
computer. Usually a navigation program appears a few
moments later. If not, start the file Intro.exe from the root
directory of the CD.
3. On the page English > Drivers activate the entry PCAN-USB.
4. Click on Install now. The setup program for the driver is
executed.
5. Follow the instructions of the setup program.
Tip: If you don't want to install the CAN monitor PCAN-View for
Windows onto hard disk together with the driver, you have the
option to start the program later directly from CD without prior
installation.

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Do the following to connect the PCAN-USB adapter and
complete the initialization:
1. Connect the PCAN-USB adpater to an USB port of the
computer or of a connected USB hub. The computer can
remain powered on.
Windows notifies that new hardware has been detected.
2. Windows XP only: A Wizard dialog box appears. Follow its
instructions and select the automatic software installation.
3. Afterwards you can work as user with restricted rights
again.
After the initialization process is finished successfully the red LED
on the PCAN-USB adapter is illuminated.
2.2 Connecting the CAN Bus
A High-speed CAN bus (ISO 11898-2) is connected to the 9-pin
D-Sub connector. The pin assignment corresponds to the
specification CiA 102.
Figure 1: Pin assignment High-speed CAN
(view onto connector of the PCAN-USB adapter)

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With the pins 1 and 9 devices with low power consumption (e.g. bus
converters) can be directly supplied via the CAN connector. At
delivery these pins are not assigned. You can find a detailed
description in the following section 2.3.
Tip: You can connect a can bus with a different transmission
standard via a bus converter. PEAK-System offers different bus
converter modules (e.g. PCAN-TJA1054 for a Low-speed CAN
bus according to ISO 11898-3).
2.3 Supplying External Devices via the CAN
Connector
On the PCAN-USB PCB (PCAN-USB case opened) a 5-Volt supply
can optionally be routed to pin 1 and/or pin 9 of the D-Sub CAN
connector (PCAN-USB opto-decoupled: pin 1 only). Thus devices
with low power consumption (e.g. external bus converters) can be
directly supplied via the CAN connector.
When using this option the 5-Volt supply is connected to the power
supply of the computer and is not fused separately. The opto-
decoupled model of the adapter contains an interconnected DC/DC
converter. Therefore the current output is limited to 50 mA.
Attention! Risk of short circuit! If the option described in this
section is activated, you may only connect or disconnect CAN
cables or peripheral systems (e.g. external bus converters) to or
from the PCAN-USB adapter while it is de-energized (the
adapter is not connected to the computer). Consider that some
computers still supply the USB ports with power even when
they are turned off (standby operation).

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Proceed as follows to activate the 5-Volt supply:
In order to access the PCB, open the case of the PCAN-USB adapter
by cautiously pushing in the latches on both sides, e.g. with a flat
tip screwdriver.
Set the solder bridge(s) on the PCB of the PCAN-USB adapter
according to the desired function. During this procedure take
especially care not to produce unwanted short circuits on the card.
The following Figure 2 and Figure 3 show the positions of the solder
fields on each PCAN-USB PCB; the tables below contain the
possible settings.
Figure 2: PCAN-USB PCB, solder field JP3
5-Volt supply →None Pin 1 Pin 9 Pin 1 + Pin 9
PCAN-USB, solder field JP3

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Figure 3: Bottom side of the PCAN-USB opto-decoupled PCB, solder field R11
5-Volt supply →None Pin 1
PCAN-USB opto-decoupled,
solder field R11
For reassembly place the PCB overhead onto the top part of the
case. Ensure that the cable is lying with the strain relief in the cut-
out of the case, and that the LED is placed in the corresponding
hole.
Push the bottom part of the case onto the top part (the latches click
in).

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3Operation
3.1 Status LED
The PCAN-USB adapter has a red status LED which may be in one
of the following conditions:
Off: A connection to a driver of the operating system is not
established.
On: The adapter is initialized. There's a connection to a driver of
the operating system.
Slowly flashing: A software application is connected to the
adapter.
Quickly flashing: Data is transmitted via the connected CAN bus.
3.2 Removing the Adapter Safely
If you want to unplug the PCAN-USB adapter from the computer
during a Windows session, pay attention to the following notes.
When the PCAN-USB adapter is connected and the driver is active,
you can find the icon for safely removing hardware in the
notification area of the Taskbar (on the lower right of the desktop):
Figure 4: Icon for removing hardware safely

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After clicking on the icon select the command Remove PCAN-USB
Device. After the red LED on the PCAN-USB adapter has gone out
you can remove it from the USB port of the computer.

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4Software
This chapter deals with the provided software and the software
interface to the PCAN-USB adapter.
4.1 CAN Monitor PCAN-View for Windows
PCAN-View for Windows is a simple CAN monitor for viewing and
transmitting CAN messages.
Figure 5: The main window of PCAN-View for Windows
Do the following to start and initialize PCAN-View:
1. If PCAN-View is already installed on the hard disk, open the
Windows Start menu, go to Programs > PCAN-Hardware,
and select the entry PCAN-View USB.
In order to start directly from the supplied CD without prior
installation use the navigation program (Intro.exe), go to
English > Tools, and in the entry PCAN-View for USB click
on Start.

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The dialog box for selecting the CAN hardware and for
setting the CAN parameters appears.
Figure 6: Selection of the CAN specific hardware and parameters
2. From the list Baud rate select the transfer rate that is used
by all nodes on the CAN bus.
3. Under Message filter you can limit the range of CAN IDs to
be received, either for standard frames (11-bit IDs) or for
extended frames (29-bit IDs).
4. Finally confirm the settings in the dialog box with OK. The
main window of PCAN-View appears (see Figure 5).
You can find further information about the use of PCAN-View in the
help which you can invoke in the program via the menu Help or the
F1 key.

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4.2 Linking Own Programs with PCAN-Light
On the provided CD you can find files for software development in
the directory branch Develop. They exclusively serve the linking of
own programs to hardware by PEAK-System with the help of the
installed device driver under Windows.
Further more the CD-ROM contains header files and examples for
creating own applications in conjunction with the PCAN-Light
drivers. Read the detailed documentation of the interface (API) in
each header file.
You can find further information in the text and help files (file name
extensions .txt and .chm).
Notes about the License
Device drivers, the interface DLL, and further files needed for linking
are property of the PEAK-System Technik GmbH and may be used
only in connection with a hardware component purchased from
PEAK-System or one of its partners. If a CAN hardware component
of third party suppliers should be compatible to one of PEAK-
System, then you are not allowed to use or to pass on the driver
software of PEAK-System.
PEAK-System assumes no liability and no support for the PCAN-
Light driver software and the necessary interface files. If third party
suppliers develop software based on the PCAN-Light driver and
problems occur during use of this software, consult the software
provider. To obtain development support, you need to own a PCAN-
Developer or PCAN-Evaluation version.

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5Technical Specifications
Supply
Supply voltage +5 V DC (via USB port)
Current consumption max. 200 mA
Connectors
Computer USB plug type A
CAN D-Sub (m), 9 pins
Pin assignment according to specification CiA 102
PCAN-USB opto-decoupled: galvanic isolation up to
500 V
USB
Type USB 1.1, compatible to USB 2.0
CAN
Specification ISO 11898-2
High-speed CAN (up to 1 Mbit/s)
2.0A (standard format) and 2.0B (extended format)
Controller NXP (Philips) SJA1000T
Transceiver NXP (Philips) PCA82C251
Environment
Operating temperature -40 - +85 °C (-40 - +185 °F)
Temperature for storage
and transport
-40 - +100 °C (-40 - +212 °F)
Relative humidity 15 – 90 %, not condensing
EMC EN 55024:2003-10
EN 55022:2007-04
EC directive 2004/108/EG
Continued on the next page

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Measures
Size (w/o cable) PCAN-USB: 75 x 43 x 22 mm
(2 15/16 x 1 11/16 x 7/8 inches) (L x W x H)
PCAN-USB opto-dec.: 87 x 43 x 22 mm
(3 7/16 x 1 11/16 x 7/8 inches) (L x W x H)
Weight (with cable) PCAN-USB: 78 g (2.8 oz.)
PCAN-USB opto-dec.: 83 g (2.9 oz.)

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Appendix A Certificates
A.1 CE PCAN-USB

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A.2 CE PCAN-USB opto-decoupled

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Appendix B Quick Reference
Software/Hardware Installation under Windows
Before connecting the PCAN-USB adapter to the computer set up
the corresponding software package from the supplied CD (with
administrator privileges). Afterwards connect the PCAN-USB
adpater to an USB port at your computer. The adapter is recognized
by Windows and the driver is initialized. After the installation
process is finished successfully the red LED on the adapter is
illuminated.
Getting Started under Windows
Run the CAN monitor PCAN-View from the Windows Start menu as
a sample application for accessing the PCAN-USB adapter. For
initialization of the PCAN-USB adapter select the CAN transfer rate
(Baud rate).
High-speed CAN connector (D-Sub, 9 pins)