IXXAT CANcheck User manual

The expert for industrial and automotive communication
Manual
CANcheck
Installation tester for CAN/CANopen networks

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: 4.01.0097.20000
Version: 1.2

Contents
1Introduction................................................................................5
1.1 Overview ............................................................................. 5
1.2 Functions and performance features ................................. 6
1.3 Support ............................................................................... 7
1.4 Returning hardware............................................................ 7
2Ports............................................................................................8
2.1 Pin assignment.................................................................... 8
2.1.1 CAN connector .........................................................................8
2.1.2 USB connector..........................................................................8
2.2 Battery compartment ......................................................... 9
2.3 Trigger output ..................................................................... 9
3Operation..................................................................................10
3.1 Switching on and off ........................................................ 10
3.2 Display............................................................................... 10
3.3 Keyboard........................................................................... 10
4Summarized tests .....................................................................12
4.1 Line parameters ................................................................ 12
4.2 Operating parameters....................................................... 18
4.2.1 Operating mode layer 2 ..........................................................18
4.2.2 Operating mode CANopen......................................................23
5Individual tests .........................................................................24
5.1 Wiring test ........................................................................ 25
5.2 Termination resistors......................................................... 28
5.3 Line length ........................................................................ 30
5.4 Line impedance ................................................................. 32
5.5 Power supply .................................................................... 34
5.6 Baudrate detection ........................................................... 35
5.7 Layer 2 - identifier scan .................................................... 37
5.8 CANopen – node ID scan................................................... 39
5.9 Bus load ............................................................................ 41
5.10 Layer 2 - signal levels per identifier .............................. 44
5.11 CANopen - signal levels per node ID............................. 47
5.12 Trigger output ............................................................... 50
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Contents
6Error messages and indications ...............................................52
6.1 Error message after switching on .....................................52
6.2 Error messages when CAN nodes are not switched off....52
6.3 Error message with low-impedance resistance.................54
6.4 Error message with inverted polarity................................54
6.5 Error message after cancelling a test ................................55
6.6 Indication of a non-periodic identifier ..............................55
6.7 Indication of an identifier without required bits ..............57
7Stored results............................................................................59
8Remote control .........................................................................63
9USB driver .................................................................................67
9.1 Installation of the USB driver ............................................67
9.2 Initial connection of CANcheck and PC .............................69
10 Appendix...................................................................................73
10.1 Technical specifications..................................................73
10.2 Accessories .....................................................................74
10.3 Information on disposal of waste equipment...............74
10.4 Information on EMC ......................................................75
10.5 Declaration of conformity..............................................75
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Introduction
1 Introduction
1.1 Overview
The CANcheck allows simple testing of CAN networks during commissioning,
maintenance and troubleshooting. The battery-operated, portable device is con-
nected to the CAN network to be tested and operated via a clearly structured
menu.
The CANcheck measures line parameters – with network switched off1– and op-
erating parameters – with network switched on.
Via line parameters it is checked whether the CAN network was correctly in-
stalled. Short-circuits, interruptions and incorrect cable properties are quickly de-
tected.
Via operating parameters it is checked whether the nodes in the CAN network are
working correctly. Missing identifiers and poor signal levels are quickly detected
and can be allocated to the individual CAN nodes.
1Generally in the case of tests of line parameters, all CAN nodes should be disconnected from the CAN
network. Switched off nodes with a high internal resistance can remain connected.
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Introduction
1.2 Functions and performance features
Tests of the line parameters with network switched off
• Resistance measurement between all pins of the CAN connector (assignment
in accordance with CiA) and analysis based on pre-defined limit values
• Measurement of the termination resistors
• Determination of the cable length
• Determination of the cable impedance
Tests of the operating parameters with network switched on
• Measurement of the voltage between CAN_V+ and CAN_GND
• Determination of the baudrate of the tested CAN network (list in accordance
with CiA) and test of polarity
• Measurement of the bus load of the tested CAN network and of the propor-
tion of error telegrams
• Operating mode layer 2: determination of all transmitted 11-bit and 29-bit
identifiers and display of the frequency of reception
• Operating mode layer 2: absolute and differential signal level listed by identi-
fier
• Operating mode CANopen: frequency of reception and signal level listed by
node ID
Other performance features
• Summarized tests with test instructions, test result, continued after confirma-
tion
• All test results are stored and can be seen on the display after the test
• The test results can be transferred to the PC for printing and filing
• Test instructions and results in German or English
• Power save mode
• Power-on self-test of the device
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Introduction
1.3 Support
Please read this manual before using the CANcheck.
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
In order to be able to process returns quickly and correctly, please apply for an
RMA number before each return. Please use our on-line "RMA form" for your ap-
plication, which you can find on our website in the Support section.
After applying for the RMA number, you will receive a return delivery note from
us, which you should enclose with your return delivery. In the case of returns
without an RMA number or return delivery note, we reserve the right to return
them at your expense.
A detailed description of the RMA procedure can be found on our website in the
Support section.
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Ports
2 Ports
The CANcheck has one CAN connector, one USB connector and a battery com-
partment. The trigger output is connected to 2 reserved pins of the CAN connec-
tor.
2.1 Pin assignment
2.1.1 CAN connector
The pin assignment on the CAN connector corresponds to CiA DS-102. The trig-
ger output is connected to 2 pins, which are marked as “reserved” in CiA DS-102.
The trigger output is galvanically isolated from the CANcheck ground and has an
internal resistance of 1 kΩ.
Pin Signal Description
1 - Reserved
2 CAN_L CAN bus signal (dominant low)
3 CAN_GND CAN ground
4 TRIGGER_SHLD Return wire of the trigger output
5 CAN_SHLD Optional shield
6 GND Optional CAN ground
7 CAN_H CAN bus signal (dominant high)
8 TRIGGER Trigger output
9 CAN_V+ Optional external power supply
Vcc
2.1.2 USB connector
If the CANcheck and the PC are connected via USB, the device is supplied from
the PC. The USB connector is galvanically isolated from the CANcheck ground.
Pin Signal Description
1 +5V Power supply
2 D- Negative data line
3 D+ Positive data line
4 GND Ground
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Ports
2.2 Battery compartment
The CANcheck is powered by 4 x 1.5 V batteries or 4 x 1.2 V rechargeable batter-
ies Mignon (AA). The battery compartment is on the back of the device. To re-
place the batteries you require a slotted screwdriver (blade width approx. 5 mm).
Please use it to press the plastic spring of the catch together and carefully lift off
the cover.
Please note:
• The rechargeable batteries cannot be recharged via the USB connector.
Please remove the rechargeable batteries from the battery compartment and
recharge them in a commercial battery charger.
• For rechargeable batteries, the capacity given by "Settings/Battery voltage" is
not valid. It is only valid for batteries.
• For rechargeable batteries, please check the voltage given by "Set-
tings/Battery voltage". You should recharge the rechargeable batteries when
the voltage drops below 4.8 V.
2.3 Trigger output
When a configurable 11-bit or 29-bit-identifier is received, the CANcheck gener-
ates a signal pulse on the trigger output. The signal pulse has the following prop-
erties:
• positive and negative signal pulse at the end of the telegram
• 10 V peak-peak without load
To use the trigger output, connect the CAN/trigger cable (see section 10.2) to the
CANcheck. The "SUB-D9 connector with CAN cable and BNC cable" belongs to the
CANcheck. The "SUB-D9 connector with CAN cable" belongs to the CAN network.
Usually, an oscilloscope is triggered by the trigger output. The telegram of the
configured 11-bit or 29-bit identifier is then displayed on the oscilloscope. In this
way the level measurements of the CANcheck can be supplemented with meas-
urements with the oscilloscope.
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Operation
3 Operation
The CANcheck has a display and a keyboard. It is switched on and off via the key-
board.
3.1 Switching on and off
Switch the CANcheck by pressing any key for more than 1 second. The name
IXXAT then appears on the display and moves downwards before disappearing.
End this test screen by pressing a key again. Then the message "Self-test passed"
appears for 1 second. Then the system menu is displayed.
In power save mode (default setting), the CANcheck automatically switches off
after 10 minutes without a user input. Generally the CANcheck consumes little
power while waiting for a user input.
However, if you wish to switch the CANcheck off immediately select the menu
item "Settings" and then the sub-item "Switch off". Please confirm the selection
with "Off".
3.2 Display
The CANcheck is equipped with a graphical display with 128 x 64 pixels. The dis-
play shows the menu items and the test results.
One header line and up to 6 lines of text are shown on the display. If the space is
not sufficient, the content can be moved with the help of the keyboard.
The display has a background illumination. In the default setting the background
illumination is switched off. You can switch the background illumination on by
selecting the menu item "Settings" and then the sub-item "background illumina-
tion". Please then select "Automatic" and confirm the selection.
In the "Automatic" setting, the backlight switches on every time a key is pressed
and off again automatically after 20 seconds.
The background illumination is always switched on when the CANcheck is con-
nected to a PC via a USB cable.
3.3 Keyboard
The CANcheck is operated via a keyboard with 6 membrane switches. Move the
selection bar from menu item to menu item with the keys UP and DOWN. Con-
firm your selection with the OK key. The selected menu item then becomes the
new header.
The CANcheck is operated via the system menu and sub-menus. Move from the
system menu to the sub-menu with the OK key. Move back with the ESC key.
You can cancel every menu item with the ESC key. You can also cancel every test
with the ESC key.
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Operation
If the pixels of the display are not sufficient, you can move the contents to the left
or right with the keys LEFT and RIGHT. With long lists you can also scroll through
the text with the keys UP and DOWN. The symbols ◄▲▼►in the header bar indi-
cate whether moving and scrolling is supported.
In some sub-menus, virtual keys appear on the display. With the keys UP and
DOWN you can change between the virtual keys shown above or below each
other. With the keys LEFT and RIGHT you can change between virtual keys shown
next to each other. The selected virtual key appears in black with white lettering.
In some sub-menus, numerical values can be entered. You can change the values
with the keys UP and DOWN and the decimal place with the keys LEFT and
RIGHT. The selected place appears in black with a white numerical value.
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Summarized tests
4 Summarized tests
The summarized tests are intended for the routine execution and repetition of the
tests of CAN networks. The user receives test instructions before the test. When
the CANcheck has checked the test result, the user receives one of the messages:
• TEST PASSED
• TEST FAILED
With some tests the CANcheck cannot check the test result because there are no
generally valid nominal values for it. This applies to the cable length, the power
supply, the baudrate and the bus load. After these tests the user receives the
message:
• TEST EXECUTED
As soon as the user has acknowledged one of these messages, the test is contin-
ued.
Tests with the CAN network switched off are executed with the menu item "Line
parameters". With these tests it is checked whether the CAN network was cor-
rectly installed.
Tests with the CAN network switched on are executed with the menu item "Oper-
ating parameters". With these tests it is checked whether the nodes in the CAN
network are working correctly.
4.1 Line parameters
To test the line parameters, connect the CANcheck – if possible – where one of
the two termination resistors of the CAN network is located. With the aid of the
Y cable you can connect the CANcheck between the CAN network and the termi-
nation resistor.
From the system menu, start the tests of the line parameters by selecting the rele-
vant menu item and OK. With the keys UP and DOWN, move the selection bar
from menu item to menu item. Confirm your selection with the OK key. The se-
lected menu item becomes then the new header.
System menu
-Line parameters
-Operat. parameters
-Individual tests
-Stored results
-Remote control
-Maintenance
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Summarized tests
If you erroneously start the test when the CAN network is switched on, you will
receive the following error message, because tests of the line parameters are not
possible when the CAN network is switched on.
Line parameters
Voltage detected
on CAN bus
Test rejected
Then you return to the system menu with the ESC key. There you can start the
next test with the CAN network switched off. Now you receive the test instruc-
tions.
Wiring test
-Disconnect all nodes
-Terminate CAN bus
on both ends
OK Start test
The header shows that the wiring is tested first. The test instructions are to be
understood as follows: generally for tests of the line parameters, all CAN nodes
should be disconnected from the CAN network. Switched off CAN nodes that
have a high resistance between CAN_H, CAN_L and ground may remain con-
nected. As the resistors of all connected CAN nodes are parallel, however, the
resistance of every individual CAN node must then be greater than the "number
of CAN nodes" x 1 kΩ.
If this condition is met, press the OK key.
During the measurement a message appears.
Wiring test
Status: scanning
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Summarized tests
In the case of correct wiring, the message "TEST PASSED" and two virtual keys ap-
pear on the display at the end of the test.
Wiring test
TEST PASSED
NEXT INFO
Start the next test with the virtual key "NEXT". First, however, we want to look at
the test results with the virtual key "INFO". For this, change to the virtual key
"INFO" with the key RIGHT. This appears in black with white lettering. Confirm the
selection with OK.
Here is the first part of a positive test result. The symbol ▼in the header means
that more lines follow. You can scroll down to them with the key DOWN.
Wiring test ▼
CAN_H ->
CAN_L : 65Ω[OK]
CAN_GND : 1.56kΩ[OK]
CAN_SHLD: >1MΩ[OK]
GND : >1MΩ[OK]
Continue the tests of the line parameters by returning to the higher order menu
with the ESC key. There you start the next test with the virtual key "NEXT" and the
OK key.
Now the termination resistor is measured. The test instructions are the same as
for the wiring test.
Term. resistors
-Disconnect all nodes
-Terminate CAN bus
on both ends
OK Start test
In the case of correct termination resistors, the message "TEST PASSED" and two
virtual keys appear in the display at the end of the test.
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Summarized tests
Term. resistors
TEST PASSED
NEXT INFO
This time we will not look at the test result. We can look at the stored test results
at the end of the test.
Start the next test with the virtual key "NEXT" and the OK key.
Before the measurement of the line length, the next test instructions are dis-
played:
Line length
-Disconnect all nodes
-Remove termination R
on both ends
OK Start test
If you have not followed these test instructions, the test result is negative.
Line length
TEST FAILED
NEXT INFO
With the virtual key "INFO" you receive an error message. A more detailed error
message is only given with the measurement of the line length as an individual
test.
Line length
Test rejected
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Summarized tests
To receive an error-free test result, it is now necessary to repeat the tests of the
line parameters. Return to the system menu by pressing the ESC key twice. Start
the tests of the line parameters by pressing the OK key.
Please confirm the test instructions and the result of the wiring test as well as the
test instructions and the result of the measurement of the termination resistors by
pressing the OK key four times.
Now remove the termination resistors at both ends of the CAN network. If
switched off CAN nodes are still connected to the CAN network, the test is only
possible if they have a high resistance between CAN_H, CAN_L and ground.
The line length can only be correctly measured if you have connected the CAN-
check to the line end, where normally one of the two termination resistors of the
CAN network is located.
If the measurement is completed successfully, you receive the message "TEST
EXECUTED". The CANcheck has consequently not checked the test result.
Line length
TEST EXECUTED
NEXT INFO
You receive the test result with the virtual key "INFO".
Line length
96 m
Continue the tests of the line parameters by returning to the higher order menu
with the ESC key. Start the next test with the virtual key "NEXT" and the OK key.
Before the measurement of the line impedance, the next test instructions are dis-
played:
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Summarized tests
Line impedance
-Disconnect all nodes
-Remove termination R
on near end
OK Start test
The test instructions are to be understood as follows: the termination resistor
must be removed from the line end to which the CANcheck is connected. The
other line end should be terminated.
The line impedance can only be correctly measured if you have connected the
CANcheck where normally one of the two termination resistors of the CAN net-
work is located.
In the case of correct line impedance, the message "TEST PASSED" and the virtual
keys "END" and "INFO" appear in the display at the end of the test.
Line impedance
TEST PASSED
END INFO
End the tests of the line parameters with the virtual key "END". You can now look
at all test results under "Stored results".
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Summarized tests
4.2 Operating parameters
To test the operating parameters, there are two ways to connect the CANcheck to
the CAN network:
• If there is a free SUB-D9 socket in the CAN network, you can connect the
CANcheck to this socket via the 1-to-1 cable.
• If this is not the case, you can loop in the CANcheck between any CAN node
and the CAN network via the Y cable.
Operating parameters can be measured in two operating modes.
• In the operating mode "layer 2", all 11-bit and 29-bit identifiers are meas-
ured. The signal levels are listed by identifier.
• In the operating mode "CANopen", only those identifiers are measured from
which the node ID clearly originates. The signal levels are listed by node ID.
4.2.1 Operating mode layer 2
Start the operational tests from the system menu by selecting the relevant menu
item and OK. Move the selection bar from menu item to menu item with the keys
UP and DOWN. Confirm your selection with the OK key. The first test becomes
the new header.
First the power supply is measured. If the measurement is completed successfully,
the message "TEST EXECUTED" appears in the display at the end of the test. The
CANcheck has consequently not checked the test result.
System menu
-Line parameters
-Operat. parameters
-Individual tests
-Stored results
-Remote control
-Maintenance
Power supply
TEST EXECUTED
NEXT INFO
Start the next test with the virtual key "NEXT". First, however, we want to look at
the test results with the virtual key "INFO". For this, change to the virtual key
"INFO" with the key RIGHT. This appears in black with white lettering. Confirm the
selection with OK.
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Summarized tests
Power supply
CAN_V+ -> CAN_GND
0.0 V
Continue the operational tests by returning to the higher order menu with the
ESC key. There you start the baudrate detection with the virtual key "NEXT" and
the OK key. If the display shows the following message, either all CAN nodes are
switched off or they are not sending any telegrams.
Baudrate detection
Status: scanning
Wait for CAN traffic
In this case, please cancel the test with the ESC key. Due to the cancellation, the
test result is negative.
Baudrate detection
TEST FAILED
NEXT INFO
Via the virtual key "INFO" you receive an error message.
Baudrate detection
Test rejected
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Summarized tests
To receive an error-free test result, it is now necessary to repeat the operational
tests. Return to the system menu by pressing the ESC key twice. Start the opera-
tional tests by pressing the OK key.
Please acknowledge the result of the measurement of the power supply by press-
ing the OK key. Now switch the CAN nodes on and ensure that the CAN nodes
are sending telegrams.
When the baudrate detection is successfully completed, you receive the message
"TEST EXECUTED". The CANcheck has consequently not checked the test result.
Baudrate detection
TEST EXECUTED
NEXT INFO
You can see the test result via "INFO".
Baudrate detection
500 kBit/s
If CAN_H and CAN_L are inverted in all nodes in the CAN network – even in this
case communication is possible - the CANcheck detects the baudrate but classi-
fies the polarity as erroneous. In this case the following error message appears:
Baudrate detection
H-L inverted [ERROR]
500 kBit/s
Continue the operational tests by returning to the higher order menu with the
ESC key. Start the next test there with the virtual key "NEXT" and the OK key.
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