IXXAT CAN-CR200 User manual

The expert for industrial and automotive communication
Manual
CAN-CR200
Modular CAN repeater

IXXAT
Headquarter US Sales Office
IXXAT Automation GmbH IXXAT Inc.
Leibnizstr. 15 120 Bedford Center Road
D-88250 Weingarten USA-Bedford, NH 03110
Tel.: +49 (0)7 51 / 5 61 46-0 Phone: [phone]
Fax: +49 (0)7 51 / 5 61 46-29 Fax: [phone]
Internet: www.ixxat.de Internet: www.ixxat.com
e-Mail: [email protected] e-Mail: [email protected]
Support
In case of unsolvable problems with this product or other IXXAT products
please contact IXXAT in written form by:
Fax: +49 (0)7 51 / 5 61 46-29
e-Mail: [email protected]
Copyright
Duplication (copying, printing, microfilm or other forms) and the electronic
distribution of this document is only allowed with explicit permission of
IXXAT Automation GmbH. IXXAT Automation GmbH reserves the right to
change technical data without prior announcement. The general business
conditions and the regulations of the license agreement do apply. All rights
are reserved.
Document number: 4.01.0067.20001
Version: 1.0

Contents
1Introduction................................................................................5
1.1 Overview ............................................................................. 5
1.2 Features............................................................................... 5
1.3 Support ............................................................................... 6
1.4 Returning hardware............................................................ 6
2Installation ..................................................................................7
2.1 Mounting of the DIN rail bus.............................................. 7
2.2 Mounting of the devices..................................................... 8
2.3 EMI Hints........................................................................... 10
3Connections and indicators......................................................11
3.1 Pin allocation .................................................................... 11
3.1.1 Power connector.....................................................................11
3.1.2 CAN bus connectors ...............................................................12
3.1.3 DIN rail bus and TBUS-connector.............................................13
3.2 Indicators .......................................................................... 14
3.2.1 Power LED (P) .........................................................................14
3.2.2 CAN LED (1, 2 and 3)..............................................................15
3.3 CAN bus termination ........................................................ 15
4Configuration ...........................................................................16
4.1 Configuration of the bus termination resistors ............... 16
4.2 Configuration of the baudrate (S301).............................. 17
4.3 Configuration of the lock time (S302).............................. 18
5Appendix...................................................................................19
5.1 Technical specifications..................................................... 19
5.2 Default setting of the bus termination resistors.............. 20
5.3 Default setting of the baudrate (S301) ............................ 20
5.4 Default setting of the lock time (S302) ............................ 20
5.5 Accessories ........................................................................ 21
5.5.1 CAN bus termination resistor ..................................................21
5.6 Declaration of conformity ................................................ 22
5.7 FCC Compliance ................................................................ 23
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Introduction
1 Introduction
1.1 Overview
Congratulations on your purchase of the IXXAT CAN-CR200, a high-quality elec-
tronic component developed and manufactured according to the latest techno-
logical standards.
This manual is intended to familiarize you with the device. Please read this man-
ual before beginning with the installation.
1.2 Features
• power supply range +9 V - +32 V DC
• two CAN bus interfaces according to ISO 11898-2, galvanically isolated
• Addition CAN interface via DIN rail bus
• If several devices are aligned on a DIN rail a star can be achieved
High-Speed
SN65HVD251
CAN socket
CAN 1
CAN interface 1
galvanical
isolation
CPLD High-Speed
SN65HVD251
CAN socket
CAN 2
CAN interface 2
galvanical
isolation
LEDs
High-Speed
SN65HVD251
CAN socket
CAN 3
CAN interface 3 (DIN rail CAN)
Picture 1-1 Block diagram of the CAN-CR200
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Introduction
1.3 Support
For more information on our products, FAQ lists and installation tips, please refer
to the support section of our website (http://www.ixxat.de), which also contains
information on current product versions and available updates.
If you have any further questions after studying the information on our website
and the manuals, please contact our support department. The support section on
our website contains the relevant forms for your support request. In order to fa-
cilitate our support work and enable a fast response, please provide precise in-
formation on the individual points and describe your question or problem in de-
tail.
If you would prefer to contact our support department by phone, please also
send a support request via our website first, so that our support department has
the relevant information available.
1.4 Returning hardware
If it is necessary to return hardware to us, please download the relevant RMA
form from our homepage and follow the instructions on this form. In the case of
repairs, please also describe the problem or fault in detail on the RMA form. This
will enable us to carry out the repair quickly.
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Installation
2 Installation
To operate the CAN-CR200, no software installation is required.
Before you use the CAN-CR200 following points have to be paid attention:
- configuration of the baudrate
- configuratoin of the lock time.
More detailed information to this points can be found in chapter 4.
2.1 Mounting of the DIN rail bus
The CAN-CR200 provides a DIN rail bus for connecting the device to other CAN-
CR200. With this option it is possible to build up a CAN star.
ATTENTION: The usage of the DIN rail bus is specific for IXXAT devices.. If an-
other DIN rail bus is used, this one must no be connected to the
IXXAT DIN rail bus.
If this is not considered, damages at the connected devices could
happen!
Prior to the connection of device to the DIN rail, the TBUS plug has to be
mounted on the DIN rail. The orientation of the plug has to adapted to the de-
sired device installation position.
Guide bar
Picture 2-1 TBUS plug and DIN rail
If the guide bar is like in Picture 2-1 down, the power connector of the CAN-
CR200 is above.
The connection of two TBUS plugs can be achieved by mounting the plugs as
shown in Picture 2-2. After this the two plugs are moved together as shown in
Picture 2-3.
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Installation
Picture 2-2 Mounting of TBUS plugs, step 1
Picture 2-3 Mounting of TBUS plugs, step 2
Now the CAN-CR200 can be mounted.
2.2 Mounting of the devices
The package of the CAN-CR200 has an opening for the TBUS plug in the are of
the DIN rail, see Picture 2-4. While the devices are attached to the DIN rail, a cor-
rect mounting to the TBUS plug has to be observed. The guide bar of the plug
has to mate into the slot in the package.
Prior to mounting the device it has to be assured, that the device is not con-
nected to power.
In the Picture 2-5 to Picture 2-6 the mounting of a CAN-CR200 is shown.
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Installation
Opening for
TBUS plug
Picture 2-4 Opening for TBUS plug
Picture 2-5 Mounting of the CAN-CR200
Slot for
the guide
bar
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Installation
Picture 2-6 Mounted CAN-CR200
2.3 EMI Hints
The CAN-CR200 is a Class A device. This means, that it is tested and designed for
industrial use and complies to this requirements.
If the device is used in an office or living area, in extreme cases radio interferences
could happen.
To guarantee a correct function of the CAN-CR200 some EMI points have to be
paid attention:
- the DIN rail have to be connected to earth
- the CAN cable has to be shielded
- the shield of the CAN cable has to be connected to the Sub-D9 and has to be
connected on the other device.
If there are still problems while the CAN-CR200 is switched on, the distance be-
tween a source of interference (eg. motors, frequency inverter) or a drain of inter-
ference and the device should be enlarged.
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Connections and indicators
3 Connections and indicators
3.1 Pin allocation
CAN 3
Package
lock
Picture 3-1 Connectors and indicators of the CAN-CR200
3.1.1 Power connector
For the power connection of the CAN-CR200, a screw terminal is used. For wir-
ing, please ensure that the cross-sectional area of the cable is larger than or equal
to 0.2mm². The maximum area is 2.5mm² for the connector.
Picture 3-2 Power connector of the CAN-CR200
Pin 1
LEDs
CAN 2
CAN 1
Power
Package
lock
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Connections and indicators
Pin No. Signal
1 V+ (+9 V to +32 V DC)
2 V- (0 V)
3 -
4 -
Table 3-1 Pin allocation of the power connector
The power connector is just plugged into the housing and can be removed with a
screwdriver or similar tool.
3.1.2 CAN bus connectors
The CAN-CR200 has two CAN bus interfaces according to ISO 11898-2. The sig-
nals of the CAN bus interfaces are connected to the Sub D-9 plugs (see Table
3-2).
Pin No. Sub D9 Signal
1 -
2 CAN low
3 CAN GND
4 -
5 -
6 -
7 CAN high
9 -
9 -
Table 3-2 Pin allocation of the CAN bus connector
The shield of the CAN connector is connected to the earth via a 10 nF capacitor.
The earth of the device is automatically connected to the DIN rail after mounting
the device on the DIN rail. The ground of the CAN bus interface is connected to
earth via a 1 MΩresistor and a 10 nF capacitor.
For best noise immunity results, the shields of the CAN cables have to be
grounded.
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Connections and indicators
3.1.3 DIN rail bus and TBUS-connector
The CAN-CR200 has a DIN rail bus. With this interface the device can be con-
nected to other CAN-CR200 devices.
The signals of the DIN rail bus are described in Table 3-3.
Pin No. Sub D9 Signal
1 CAN high
2 CAN low
3 GND
4 -
5 -
Table 3-3 Pin allocation of the DIN rail bus
For the DIN rail bus so called TBUS plugs are necessary. This plugs were pressed in
the DIN rail. More detailed information can be read in chapter 2.1.
Pin 1
Picture 3-3 TBUS plug with DIN rail
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Connections and indicators
3.2 Indicators
The CAN-CR200 has four LEDs. The LEDs show the communication status of the
relevant interface or the device status.
Picture 3-4 LEDs of the CAN-CR200
3.2.1 Power LED (P)
The Power LED indicates the status of the power supply. If the LED is green, the
power supply is working. If the LED is off, there is a problem with the power sup-
ply.
Flashing
mode
Description Causes/Hints
Off No power • Device not connected to a power supply
• Fuse of the device damaged
• Internal power supply damaged
green Power ok • Device fully functional
red Device is resetted • After power-up the device is set into reset and
the LED is red for the duration of the reset. The
normal duration period is about 200ms.
• Power supply out of order, the internal voltage
is below the necessary level.
Table 3-4 States of the Power LED
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Connections and indicators
3.2.2 CAN LED (1, 2 and 3)
The CAN LEDs flashes on each received CAN message green, if there was no error
detected.
If transmission errors (received bits are different to the transmitted bits) or a
dominant-lock state are detected, the LEDs flashes red.
Flashing
mode
Description Causes/Hints
off No CAN
communication
• No CAN communication
• Device not connected to CAN
green / green
blinking
CAN communication • With each CAN message the LED is
triggered
red blinking CAN communication, but
errors
• The received bits are not equal to
the transmitted ones.
red Dominant-lock • An external device applies a perma-
nent dominant level to the CAN
Table 3-5 States of the CAN LED
3.3 CAN bus termination
The CAN-CR200 offers the possibilty to add bus termination resistors to each CAN
network connected to the device. This feature is realized with a DIP switch for
each CAN channel. For more details please refer to chapter 4.1.
As an accessory a bus termination resistor is available as a feed through connec-
tor at IXXAT (ordering number 1.04.0075.03000).
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Configuration
4 Configuration
Before you can use the CAN-CR200 the internal DIP switches S301 and S302 has
to be set according to the CAN network configuration. The default settings are
shown in chapters 5.3 and 5.4.
The configuration of the bus termination resistors should be done before install-
ing the device into the system, too. The default settings are shown in chapter 5.2.
4.1 Configuration of the bus termination resistors
For each CAN circuit a bus termination resistor could be activated by a DIP witch.
Just one position has to set to ON, but to avoid misunderstandings allways both
positions should be set to ON.
CAN 2
CAN 3
CAN 1
Picture 4-1 Position of the DIP switches for the bus termination resistors
The bus termination resistors should activated if the CAN-CR200 is the first or the
last device in the network. The termination resistor value of the total network
should be about 60 Ohm (120 Ohm at both ends of the network).
If the bus termination is not correct, transmission problems could happen.
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Configuration
4.2 Configuration of the baudrate (S301)
DIP switch
S302
DIP switch
S301
Picture 4-2 Position of the DIP switches
With the DIP switch S301 the baudrate of the CAN network is defined. This set-
ting is necessary, because the internal logic has to detect dominant-lock states
(dominant level on CAN bus exceeds the maximum allowed duration).
Position
1
Position
2
Position
3
Position
4
Remark
ON OFF OFF OFF
Baudrate between 5kBd and 100 kBd
OFF ON OFF OFF
Baudrate between 100kBd and 500
kBd
OFF OFF ON OFF Baudrate equal or above 500 kBd
Table 4-1 Configuration of the baudrate
All combinations not listed in the table aren’t allowed. If such a combination is
set, misfunction of the CAN-CR200 could happen.
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Configuration
4.3 Configuration of the lock time (S302)
With the DIP switch S302 the lock time of the CAN-CR200 is defined. This time is
used to avoid bit errors created by the device itself in a result of the signal propa-
gation delay. This errors could be a short dominant level inside of a recessive bit,
which could cause bit errors at other CAN nodes (depending on the sampling
point).
The setting of the lock time has to be done according to the baudrate and the
capacitive load of the network.
Position 1 Position 2 Position 3 Position 4 Lock time in ns
(tolerance ±10%)
OFF OFF OFF OFF 100
OFF OFF OFF ON 300
OFF OFF ON OFF 500
OFF OFF ON ON 800
OFF ON OFF OFF 1000
OFF ON OFF ON 1300
OFF ON ON OFF 1500
OFF ON ON ON 1800
ON OFF OFF OFF 2000
ON OFF OFF ON 2300
ON OFF ON OFF 2500
ON OFF ON ON 2800
ON ON OFF OFF 3000
ON ON OFF ON 3300
ON ON ON OFF 3500
ON ON ON ON 3800
Table 4-2 Configuration of the lock time
For reference values the following settings can be taken:
- for networks with less than 32 nodes the minimum lock time should be about
300 ns
- for networks between 32 and 64 nodes a minimum lock time of 500 ns should
be used
- for networks with more the 64 nodes a minimum lock time of 1 µs should be
used, but with this setting the maximum baudrate is limited to 500 kBd.
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Appendix
5 Appendix
5.1 Technical specifications
Power supply: +9 V to +32 V DC
Power consumption (normal): typically 41 mA (at 24 V input voltage)
maximum 100 mA (at 24 V input voltage)
CAN transceiver: Texas Instruments SN65HVD251 or
Philips PCA82C251T
Max. number of CAN bus nodes: 120
CAN bus termination resistor: 120 Ohm switchable via DIP switch
CAN propagation delay: with galvanic isolation typically 210 ns
CAN baudrates: 5 kBaud – 1 MBaud
Housing material: Polyamide
Dimensions (L x B x H) in mm: 114,5 x 99 x 22,5
Weight: approx. 300 g
Protection class: IP30
Operating temperature range: -20 °C - +70 °C
Storage temperature range: -40 °C - +85 °C
Relative humidity: 10 - 95 %, non-condensing
Galvanic isolation: 500 V AC for 1 min
EMC-test according to: DIN EN 55022:1998 + A1:2000 + A2:2003
(Limit class A)
FCC Rules 47 CFR Part 15 – Subpart B
Alternative IEC/CISPR22:1997 + A1:2000
+ A2:2002 (Limit class A)
Environmental directive: RoHS, WEEE, directive (2002/95/EC)
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Appendix
5.2 Default setting of the bus termination resistors
Per default none of the bus termination resistors is activated. So all DIP switches
are OFF.
5.3 Default setting of the baudrate (S301)
Position
1
Position
2
Position
3
Position
4
Remark
OFF OFF ON OFF Baudrate equal or above 500 kBd
Table 5-1 Default baudrate setting
5.4 Default setting of the lock time (S302)
Position
1
Position
2
Position
3
Position
4
Remark
OFF OFF OFF ON Lock time 300 ns
Table 5-2 Default lock time setting
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