ESD CAN-USB/2 Manuel utilisateur
CAN-USB/2
USB 2.0-CAN Interface
Hardware Manual
to Product C.2066.02,
C.2066.03
CAN-USB/2 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 Page 1 of 28
esd electronics gmbh
Vahrenwalder Str. 207 • 30165 Hannover • German
http://www.esd.eu
Phone: +49 (0) 511 3 72 98-0 • Fax: +49 (0) 511 3 72 98-68
N O T E
The information in this document has been carefully checked and is believed to be entirely reliable.
esd electronics makes no warranty of any kind with regard to the material in this document, and
assumes no responsibility for any errors that may appear in this document. In particular
descriptions and technical data specified in this document may not be constituted to be guaranteed
product features in any legal sense.
esd electronics reserves the right to make changes without notice to this, or any of its products, to
improve reliability, performance or design.
All rights to this documentation are reserved by esd electronics. Distribution to third parties, and
reproduction of this document in any form, whole or in part, are subject to esd electronics's
written approval.
© 2019 esd electronics gmbh, Hannover
esd electronics gmbh
Vahrenwalder Str. 207
30165 Hannover
Germany
Phone +49-511-372 98-0
Fax +49-511-372 98-68
E-Mail [email protected]
Internet www.esd.eu
This manual contains important information and instructions on safe and efficient
handling of the CAN-USB/2. Carefully read this manual before commencing any work
and follow the instructions.
The manual is a product component, please retain it for future use.
Trademark Notices
CANopen® and CiA® are registered EU trademarks of CAN in Automation e.V.
Linux® is the registered trademark of Linus Torvalds in the United States and/or other countries.
Windows is a registered trademark of Microsoft Corporation in the United States and other countries.
All other trademarks, product names, company names or company logos used in this manual are reserved by their
respective owners.
Page 2 of 28 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 CAN-USB/2
Docu ent file: I \Texte\Doku\MANUALS\CAN\CAN-USB-2\Englisch\CAN-USB2_Hardware_en_16.odt
Date of print: 2019-06-17
Docu ent type
nu ber: DOC0800
PCB version: CAN-USB/2 Rev. 1.2
Docu ent History
The changes in the document listed below affect changes in the hardware as well as changes in
the description of the facts, only.
Revision Chapter Changes versus previous version Date
1.4
6 Updated chapter “Correctly Wiring Electrically Isolated CAN Networks“
2013-03-067 New Declaration of Conformity
8 Updated chapter “Order Information“
1.5
3. Note to Correctly Wiring Electrically Isolated CAN Networks inserted
2015-05-26
4.4. Chapter “Serial Interface” deleted
6., 7. Chapters revised
8. New chapter “License”
9. Chapter moved and Declaration of Conformity updated
10. Chapter moved and revised
1.6
Safety Instructions revised and Classification of Warning Messages and
Safety instructions inserted
2019-06-17
3. Hardware Installation revised
4. Weight corrected 140g
5.1 Description of connector type corrected, description of Shied added
5.2 Description of connector type and signal description added
9. EU Declaration of Conformity updated
Technical details are subject to change without further notice.
CAN-USB/2 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 Page 3 of 28
Classification of Warning Messages and Safety Instructions
This manual contains noticeable descriptions, warning messages and safety instructions, which
you must follow to avoid personal injuries or death and property damage.
This is the safety alert symbol.
It is used to alert you to potential personal injury hazards. Obey all safety messages
and instructions that follow this symbol to avoid possible injury or death.
DANGER, WARNING, CAUTION
Depending on the hazard level the signal words DANGER, WARNING or CAUTION are used to
highlight safety instructions and warning messages. These messages may also include a warning
relating to property damage.
DANGER
Danger statements indicate a hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING
Warning statements indicate a hazardous situation that, if not avoided, could result in
death or serious injury.
CAUTION
Caution statements indicate a hazardous situation that, if not avoided, could result in
minor or moderate injury.
NOTICE
Notice statements are used to notify people on hazards that could result in things other than
personal injury, like property damage.
NOTICE
This NOTICE statement indicates that the device contains components sensitive to
electrostatic discharge.
NOTICE
This NOTICE statement contains the general mandatory sign and gives information that
must be heeded and complied with for a safe use.
INFORMATION
INFORMATION
Notes to point out something important or useful.
Page 4 of 28 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 CAN-USB/2
Safety Instructions
● When working with the CAN-USB/2 follow the instructions below and read the manual carefully to
protect yourself from injury and the CAN-USB/2 from damage.
● Do not use damaged or defective cables to connect the CAN-USB/2 and follow the CAN wiring hints
in chapter "Correct Wiring of Electrically Isolated CAN Networks".
● In case of damages to the device, which might affect safety, appropriate and immediate measures
must be taken, that exclude an endangerment of persons and domestic animals and property.
● Current circuits which are connected to the device have to be sufficiently protected against
hazardous voltage (SELV according to EN 60950-1).
● The CAN-USB/2 may only be driven by power supply current circuits, that are contact protected.
A power supply, that provides a safety extra-low voltage (SELV) according to EN 60950-1, complies
with this conditions.
● Do not open the housing of the CAN-USB/2.
● The CAN-USB/2 has to be securely installed before commissioning.
●Never let liquids get inside the CAN-USB/2. Otherwise, electric shocks or short circuits may result.
● Protect the CAN-USB/2 from dust, moisture and steam.
● Protect the CAN-USB/2 from shocks and vibrations.
● The CAN-USB/2 may become warm during normal use. Always allow adequate ventilation around
the CAN-USB/2 and use care when handling.
● Do not operate the CAN-USB/2 adjacent to heat sources and do not expose it to unnecessary
thermal radiation. Ensure an ambient temperature as specified in the technical data.
Qualified Personnel
This documentation is directed exclusively towards personnel qualified in control and automation
engineering. The installation and commissioning of the product may only be carried out by qualified
personnel, which is authorized to put devices, systems and electric circuits into operation according to the
applicable national standards of safety engineering.
Confor ity
The CAN-USB/2 is an industrial product and meets the demands of the EU regulations and EMC standards
printed in the conformity declaration at the end of this manual.
Warning: In a residential, commercial or light industrial environment the CAN-USB/2 may cause radio
interferences in which case the user may be required to take adequate measures.
Intended Use
The intended use of the CAN-USB/2 is the operation as an USB 2.0-CAN-Interface
The guarantee given by esd does not cover damages which result from improper use, usage not in
accordance with regulations or disregard of safety instructions and warnings.
●The CAN-USB/2 module is designed for indoor operation only.
● The operation of the CAN-USB/2 in hazardous areas, or areas exposed to potentially explosive materials is
not permitted.
● The operation of the CAN-USB/2 for medical purposes is prohibited.
Service Note
The CAN-USB/2 does not contain any parts that require maintenance by the user. The CAN-USB/2 does not
require any manual configuration of the hardware. Unauthorized intervention in the device voids warranty
claims.
Disposal
Devices which have become defective in the long run have to be disposed in an appropriate way or have to
be returned to the manufacturer for proper disposal. Please, make a contribution to environmental protection.
CAN-USB/2 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 Page 5 of 28
Table of contents
Safety Instructions...........................................................................................................................5
1. Overview...................................................................................................................................... 8
2. Case View with LED and Connector Description..........................................................................9
2.1 LED-Displays.......................................................................................................................10
3. Hardware Installation .................................................................................................................11
4. Technical Data...........................................................................................................................12
4.1 General Technical Data.......................................................................................................12
4.2 USB Interface and Microcontroller.......................................................................................12
4.3 CAN Interface......................................................................................................................13
4.4 Software Support.................................................................................................................13
5. Connector Assignments.............................................................................................................14
5.1 CAN Interface at DSUB9 Connector....................................................................................14
5.2 USB Socket.........................................................................................................................15
6. Correctly Wiring Electrically Isolated CAN Networks..................................................................16
6.1 Standards concerning CAN Wiring......................................................................................16
6.2 Light Industrial Environment (Single Twisted Pair Cable).....................................................17
6.2.1 General Rules.............................................................................................................17
6.2.2 Cabling........................................................................................................................18
6.2.3 Branching....................................................................................................................18
6.2.4 Termination.................................................................................................................18
6.3 Heavy Industrial Environment (Double Twisted Pair Cable).................................................19
6.3.1 General Rules.............................................................................................................19
6.3.2 Device Cabling............................................................................................................20
6.3.3 Branching....................................................................................................................20
6.3.4 Termination.................................................................................................................20
6.4 Electrical Grounding.............................................................................................................21
6.5 Bus Length...........................................................................................................................21
6.6 Examples for CAN Cables...................................................................................................22
6.6.1 Cable for light industrial Environment Applications (Two-Wire)...................................22
6.6.2 Cable for heavy industrial Environment Applications (Four-Wire)................................22
7. CAN Troubleshooting Guide.......................................................................................................23
7.1 Termination..........................................................................................................................23
7.2 Electrical Grounding.............................................................................................................24
7.3 Short Circuit in CAN Wiring..................................................................................................24
7.4 CAN_H/CAN_L-Voltage ......................................................................................................24
7.5 CAN Transceiver Resistance Test.......................................................................................25
7.6 Support by esd.....................................................................................................................25
8. License....................................................................................................................................... 26
9. Declaration of Conformity...........................................................................................................27
10. Order Information.....................................................................................................................28
Page 6 of 28 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 CAN-USB/2
Overview
1. Overview
Figure 1: Block-circuit diagram of CAN-USB/2 module
The CAN-USB/2 module is an intelligent CAN interface with an ARM7 micro controller for local
CAN data management. The module supports the USB 2.0 Hi-Speed interface with data transfer
rates of 480 Mbit/s.
The ISO 11898-compliant CAN interface allows a maximum data transfer rate of 1 Mbit/s. Like
many other features of CAN interfaces, the bit rate can be set by means of software. CAN interface
and other voltage potentials are electrically isolated by means of a digital isolator and DC/DC
converters.
The supply voltage is fed via the USB bus. The module is equipped with four green LEDs in the
front panel which indicate the current module status.
Page 8 of 28 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 CAN-USB/2
+5 V=
+5 V=
Physical
CAN
Layer
C
A
N
B
U
S
CAN
ARM 7
Microcontroller
USB Controller
LEDs
Digital
solator
Electrical solation
DC/DC
Converter
DSUB9
CiA pinning
Power
Supply
5 V(DC) USB-
Connector
Case View with LED and Connector Description
2. Case View with LED and Connector Description
Figure 2: CAN connector and LEDs
Figure 3: USB Interface
CAN-USB/2 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 Page 9 of 28
Case View with LED and Connector Description
2.1 LED-Displays
LED
NAME Number Status Description
USB LED300D on USB module is enumerated
(a node-ID is assigned to the USB module)
Power LED300C on module is in operation,
the 5 V power supply is applied to the module
CAN LED300B on data is received or send on the CAN bus
OK LED300A
on CAN interface is initialized, bit rates are set
off bit rate not set
fast flashing
(approx. 10 Hz)
CAN interface is initialized and in mode “Listen Only”,
the bit rate is already set
slow flashing
(approx. 1 Hz)
CAN interface is initialized and in mode “Automatic
Baud rate Detection” (from firmware version 1.0.0.4
and CAN driver version 2.5.2 on)
Table 1: Description of LED display
Page 10 of 28 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 CAN-USB/2
Hardware Installation
3. Hardware Installation
To put the CAN-USB/2 into operation, please follow the installation notes.
Step Procedure see
page
Read the safety instructions at the beginning of this docu ent
carefully, before you start with the hardware installation! 5
1. Connect the CAN bus via the DSUB9 connector of the CAN-USB/2 as
described in chapter “Correctly Wiring Electrically Isolated CAN
Networks“.
Please note that the CAN bus has to be terminated at both ends!
esd offers special T-connectors and termination connectors for external
termination. Additionally the CAN_GND signal has to be connected to
earth at exactly one point in the CAN network.
16
2. Connect the USB interface of the CAN-USB/2-module via USB bus to
your PC. Use the supplied USB cable for this purpose.
The module is powered via USB.
-
NOTICE
Access via esd's NTCAN API is supported.
The software installation via esd's NTCAN API is described in the manual ‘NTCAN-API,
Installation Guide’.
CAN-USB/2 Hardware Manual • Doc. No. C.2066.21 / Rev. 1.6 Page 11 of 28
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