PCAN-USB Hub
All-in-one USB adapter for
communication via CAN, RS-232, and USB
User Manual
PCAN-USB Hub – User Manual
Contents
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PCAN-USB Hub – User Manual
1 Introduction
The PCAN-USB Hub provides several hardware interfaces via a USB
connection. The device has connection facilities for one CAN bus,
two serial RS-232 connections and two additional USB devices.
Software interfaces exist for different operating systems, so
programs can easily access a connected CAN bus.
Quick Reference with brief information about the installation
and operation of the PCAN-USB Hub.
1.1 Properties at a Glance
Aluminum casing
USB 2.0 connection with a computer (upstream)
Voltage supply via USB connector or via separate input possible
(bus-/self-powered)
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
2 RS-232 interfaces via 9-pin D-Sub connectors
2 USB 2.0 downstream ports
5-Volt and external power supply at the CAN connector
connectible by solder bridges, e.g. for external bus converter
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PCAN-USB Hub – User Manual
Device drivers and programming interfaces for operating
systems Windows (from XP onwards) and Linux, for earlier
Windows versions and other operating systems on request
Note: This manual describes the use of PCAN-USB Hub with
Windows. You can find CAN drivers for Linux and the
corresponding application information on the provided CD in
the directory branch Develop and on our website under
1.2 Prerequisites for the operation
A vacant USB port at the computer (USB 2.0 recommended)
Operating system Windows 7/Vista/XP (32-/64-bit) or Linux
(32-/64-bit)
1.3 Scope of Supply
PCAN-USB Hub incl. a fixed USB cable for the connection to the
computer
Mating connector for an external power supply
CD with software (drivers, utilities), programming examples, and
documentation
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PCAN-USB Hub – User Manual
2 Installing the Software and
the PCAN-USB Hub
This chapter deals with the software setup for the PCAN-USB Hub
under Windows and the connection of the hub to the computer.
Drivers for the CAN interface as well as the RS-232 interfaces are
installed. All drivers are installed from the provided Product CD.
Setup the driver for the CAN interface before connecting the PCAN-
USB Hub to the computer for the first time.
Do the following to setup the driver for the CAN interface:
1. Make sure that you are logged in as user with administrator
privileges (not needed for normal use of the PCAN-USB Hub
later on).
2. Insert the 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.
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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PCAN-USB Hub – User Manual
Do the following to connect the PCAN-USB Hub and carry out
the initialization of the CAN driver and the installation of the
drivers for the RS-232 interfaces:
1. Connect the PCAN-USB Hub to a USB port at the computer.
The computer can remain powered on.
Windows notifies that new hardware has been detected.
2. Only Windows XP: A Wizard dialog box appears guiding
through the CAN driver initialization (“PCAN-USB device”).
Follow its instructions. Deny the search for driver software
at Windows Update and select the automatic software
installation during this procedure.
3. Dialog boxes appear for the installation of the drivers for the
RS-232 interfaces (devices “USB <-> Serial Cable” and “USB
Serial Port”). Follow their instructions. Select the search for
driver software on CD during this procedure.
The drivers are found on CD and installed by Windows.
Afterwards you can work as user with restricted rights again.
After the initialization process for the driver for the CAN interface is
finished successfully the red LED at the CAN connector of the
PCAN-USB Hub is on.
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PCAN-USB Hub – User Manual
The Device Manager of Windows contains the following new
entries:
CAN-USB-Hardware > PCAN-USB Device
Universal Serial Bus controllers > Generic USB Hub
Universal Serial Bus controllers > USB Serial Converter A
Universal Serial Bus controllers > USB Serial Converter A
Universal Serial Bus controllers > USB Composite Device
1 The port numbers for the COM ports may vary. If a COM port is occupied, the next
vacant port number is used. Changing the port number in the Device Manager:
Ports (COM & LPT) > USB Serial Port (COMn) > Properties > Port Settings >
Advanced
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PCAN-USB Hub – User Manual
3 Connectors on the PCAN-USB
Hub
3.1 Upstream Port (USB Cable)
The cable with the USB plug is used for connecting the PCAN-USB
Hub to a computer.
When a high-speed USB connection (USB 2.0) is established, the
LED at the upstream port is on. For a full-speed USB connection
(USB 1.1) the LED stays off.
The Upstream Port can be used for voltage supply of the PCAN-USB
3.2 Power (Voltage Supply)
The voltage supply of the PCAN-USB Hub may either be done via
the Upstream Port or with an external power supply at the Power
socket.
Property
For voltage supply via
Upstream Port
5 V DC (USB)
Power socket
9 - 36 V DC
Supply voltage
Operating mode name
Bus-powered
Self-powered
Permissible current delivery
USB Port 1/2
100 mA
500 mA
Permissible total current consumption
of hub (incl. additional USB devices at 500 mA
the hub)
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PCAN-USB Hub – User Manual
If the permissible current delivery value is exceeded by connecting
additional USB devices to the PCAN-USB Hub, Windows shows a
respective warning and deactivates the related components.
Figure 1: Power socket at the rear of the PCAN-USB Hub
for the external voltage supply (self-powered operation)
The connection of an external power supply at the Power socket is
done with the supplied mating connector for fastening cable
strands.
3.3 CAN
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 2: Pin assignment High-speed CAN
(view onto connector of the PCAN-USB Hub)
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 about the activation in the following section 3.3.1.
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PCAN-USB Hub – User Manual
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).
3.3.1
Supplying External Devices via the CAN
Connector
By setting solder bridges on the PCB of the PCAN-USB Hub (casing
opened) a 5-Volt supply can be routed to pin 1 and the external
voltage supply, if available, can be routed to pin 9 of the D-Sub CAN
connector.
CAN D-Sub pin Voltage
Max. current delivery
1
9
+5 V
100 mA
external supply voltage 2 A
(9 - 36 V)
If the solder bridge for pin 9 is set, the state of this pin can be
switched by software (on/off). At delivery pin 9 is on referred to the
software part. On request we’ll provide you with additional informa-
see on page 2).
Proceed as follows to activate the 5-Volt supply and the external
voltage supply at the CAN connector:
Remove the four lower corner screws from the aluminum casing of
the PCAN-USB Hub and then the bottom cover.
Set the solder bridge(s) on the PCB of the PCAN-USB Hub according
to the desired function. During this procedure take especially care
not to produce unwanted short circuits on the board.
The following figure shows the positions of the solder fields on the
PCB of the PCAN-USB Hub; the tables below contain the possible
settings.
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PCAN-USB Hub – User Manual
Figure 3: Positions of the solder fields JP103 and JP104
on the PCB of the PCAN-USB Hub
None
None
Pin 1
Pin 9
5-Volt supply →
JP104
External supply →
JP103
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 Hub while it is de-energized (the hub 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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PCAN-USB Hub – User Manual
3.4 RS-232
An RS-232 connection is done via a 9-pin D-Sub connector.
Figure 4: Pin assignment RS-232 A/B
(view onto connector of the PCAN-USB Hub)
3.5 USB Ports (Downstream)
Further USB devices can be connected to the USB ports 1 and 2.
Figure 5: USB ports at the back of the PCAN-USB Hub
When using the USB ports, we recommend the voltage supply of
the PCAN-USB Hub via the Power socket (self-powered operation).
Supply via
Operating mode Current delivery USB Port 1/2
Upstream Port
Power socket
Bus-powered
Self-powered
max. 100 mA
max. 500 mA
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PCAN-USB Hub – User Manual
4 Operation
4.1 Status LEDs
The PCAN-USB Hub has several status LEDs.
Figure 6: Arrangement of the LEDs on the back side,
USB Upstream / Power socket
Power
Green: Supply via Upstream port
Red: external voltage supply
USB Upstream (red)
On: High-speed USB connection (USB 2.0) with a computer
Off: Full-speed USB connection (USB 1.1) with a computer
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PCAN-USB Hub – User Manual
Figure 7: Arrangement of the LEDs on the front side,
CAN / RS-232 A/B
CAN (red)
On: The CAN interface is initialized. There's a connection to a
driver of the operating system.
Slowly flashing: A software application is connected to the CAN
interface.
Quickly flashing: Data is transmitted via the connected CAN bus.
RS-232 A/B (green)
Flickering: Transmission on TxD or RxD
4.2 Removing the Hub Safely
Obey the notes about removing hardware safely, if one of the
following cases arises:
You want to remove the PCAN-USB Hub from the computer
during a Windows session.
You want to switch the voltage supply at the Power socket on or
off.
Do the following to log off the PCAN-USB Device in the hub and
USB devices eventually connected to the hub from Windows:
1. Under Windows you can find the icon for safely removing
hardware in the notification area of the Taskbar (on the
lower right of the desktop):
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PCAN-USB Hub – User Manual
Figure 8: Icon for removing hardware safely
2. After clicking on the icon select the command Remove
PCAN-USB Device.
3. Proceed similarly with further USB devices that are
connected to the PCAN-USB Hub.
4. When the CAN LED on the PCAN-USB Hub is off, you can
remove it from the USB port of the computer or switch the
external voltage supply.
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PCAN-USB Hub – User Manual
5 CAN Software
This chapter deals with the provided software and the programming
interface for the CAN interface of the PCAN-USB Hub.
5.1 CAN Monitor PCAN-View for Windows
PCAN-View for Windows is a simple CAN monitor for viewing and
transmitting CAN messages.
Figure 9: 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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PCAN-USB Hub – User Manual
The dialog box for selecting the CAN hardware and for
setting the CAN parameters appears.
Figure 10: 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).
Finally confirm the settings in the dialog box with OK. The main
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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PCAN-USB Hub – User Manual
5.2 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
The CAN device driver, the CAN 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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PCAN-USB Hub – User Manual
6 Technical Specifications
Supply
Supply voltage
5 V DC via USB port (bus-powered operation)
9 - 36 V DC via Power socket (self-powered operation)
Current consumption
At 5 V via USB port: max. 300 mA
At 12 V via Power socket: max. 150 mA
(each time without connected USB devices)
Connectors
Computer
CAN
USB plug type A
D-Sub (m), 9 pins
Pin assignment according to specification CiA® 102
RS-232
USB
2 x D-Sub (m), 9 pins
2 x USB socket type A
USB
Upstream port
Downstream ports
USB 2.0 (compatible to USB 1.1)
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
NXP (Philips) PCA82C251
Transceiver
RS-232
Transfer rates
Signal levels
0.3 - 120 kbit/s
EIA-232E
Continued on the next page
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PCAN-USB Hub – User Manual
Environment
Operating temperature
-30 - +85 °C (-22 - +185 °F)
Temperature for storage
and transport
-40 - +105 °C (-40 - +221 °F)
Relative humidity
EMC
15 - 90 %, not condensing
EN 55024:2003-10
EN 55022:2007-04
EC directive 2004/108/EG
Ingress protection
(IEC 60529)
IP50
Measures
Size
105 x 26 x 110 mm (4 1/8 x 1 x 4 5/16 inches) (without
connection cable)
Weight
300 g (10.6 oz.) (with connection cable)
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PCAN-USB Hub – User Manual
Appendix B Quick Reference
Software/Hardware Installation under Windows
Before connecting the PCAN-USB Hub to the computer set up the
corresponding software package (PCAN-USB) from the supplied CD
(with administrator privileges). Afterwards connect the PCAN-USB
Hub to a USB port at your computer. The Hub is recognized by
Windows and the drivers are initialized. After the installation
process for the CAN interface is finished successfully the red CAN
LED on the hub is on. The RS-232 interfaces are accessible as virtual
COM ports.
CAN Access
Run the CAN monitor PCAN-View from the Windows Start menu as
a sample application for accessing the CAN interface of the PCAN-
USB Hub. For initialization of the CAN interface select the CAN
transfer rate (Baud rate).
High-speed CAN
RS-232
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