ESD CAN-CBX-COM2 User manual

CAN-CBX-COM2 Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 1 of 125
esd electronic system design gmbh
Vahrenwalder Str. 207 • 30165 Hannover • Germany
http://www.esd.eu
Phone: [phone] • Fax: [phone]
CAN-CBX-COM2
CAN - RS-232, RS-422, RS-485
or TTY-Interface
Manual
to Product C.3055.02, C.3055.03

Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 2 of 125
N O T E
The information in this document has been carefully checked and is believed to be entirely reliable.
esd 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 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. Distribution to third parties and reproduction of
this document in any form, whole or in part, are subject to esd’s written approval.
© 2015 esd electronics system design gmbh, Hannover
esd electronic system design gmbh
Vahrenwalder Str. 207
30165 Hannover
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: www.esd.eu
Trademark Notices
CiA
®
and CANopen
®
are registered community trademarks of CAN in Automation e.V.
All other trademarks, product names, companynamesor companylogos used in thismanual are reserved by their respective
owners.

CAN-CBX-COM2 Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 3 of 125
Document-
File:
I:\Texte\Doku\MANUALS\CAN\CBX\CAN-CBX-COM2\Englisch\CAN-CBX-COM2_Manual_en_11.wpd
Date of
print: 2015-02-05
Software: CANopen
Revision: V1.ODJ
Changes in the chapters
The changes in the document listed below affect changes in the hardware and firmware as well as
changes in the description of facts only.
Revision Chapter Changes versus previous version
1.0
- First English Version
1.1
- Typographical Conventions inserted
2. Note to termination connector in step 2 deleted
3. Chapter revised, notes inserted
4.5 Chapter “Software Support” moved
8.8 Description of Self-Start-Feature (1F80
h
, 1F91
h
) inserted
9. References revised
10. EU-Conformity updated
Technical details are subject to change without further notice.

Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 4 of 125
Safety Instructions

When working with CAN-CBX modules follow the instructions below and read the manual carefully to protect
yourself and the CAN-CBX module from damage.

The permitted operating position is specified as shown (Fig. 7). Other operating positions are not allowed.

Do not open the housing of the CAN-CBX module

Never let liquids get inside the CAN-CBX module. Otherwise, electric shocks or short circuits may result.

Protect the CAN-CBX module from dust, moisture and steam.

Protect the CAN-CBX module from shocks and vibrations.

The CAN-CBX module may become warm during normal use. Always allow adequate ventilation around the CAN-
CBX module and use care when handling.

Do not operate the CAN-CBX module adjacent to heat sources and do not expose it to unnecessary thermal radiation.
Ensure an ambient temperature as specified in the technical data.

Do not use damaged or defective cables to connect the CAN-CBX module 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, or 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-CBX module may only be driven by power supply current circuits, that are contact protected. A power
supply, that provides a safety extra-low voltage (SELV or PELV) according to EN 60950-1, complies with this
conditions.
Qualified Personal
This documentation is directed exclusively towards qualified personal in control and automation engineering.
The installation and commissioning of the product may onlybe carried out by qualified personal, which is authorized to put
devices, systems and electric circuits into operation according to the applicable national standards of safety engineering.
Conformity
The CAN-CBX module 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 CBX-module may cause radio
interferences in which case the user may be required to take adequate measures.
Intended Use
The intended use of the CAN-CBX module is the operation as a CANopen module with two serial interfaces.
The esd guarantee does not cover damages which result from improper use, usage not in accordance with regulations or
disregard of safety instructions and warnings.

The CAN-CBX module is intended for indoor installation only.

The operation of the CAN-CBX module in hazardous areas, or areas exposed to potentially explosive materials
is not permitted.

The operation of the CAN-CBX module for medical purposes is prohibited.
Service Note
The CAN-CBX module does not contain any parts that require maintenance by the user. The CAN-CBX module 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-CBX-COM2 Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 5 of 125
Contents
1. Overview ....................................................................9
1.1DescriptionoftheModule ....................................................9
2. Quick Start .................................................................10
3. Hardware Installation ........................................................12
3.1ConnectingDiagram .......................................................12
3.1.1PowerSupplyandCAN .................................................12
3.2LED-Display .............................................................13
3.2.1IndicationofActivity-LEDs ..............................................13
3.2.2FlashRatesoftheStatusLEDs............................................14
3.2.3 Operation of the CAN-Error LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.4 Operation of the CANopen-Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.5OperationoftheError-LED ..............................................15
3.2.6OperationofthePower-LED..............................................15
3.2.7SpecialIndicatorStates ..................................................16
3.2.8 Assignment of LED Labelling to the Name in the Schematic Diagram . . . . . . . . . . . . . 16
3.3CodingSwitches...........................................................17
3.3.1 Setting the Node-ID via Coding Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.2SettingtheBaudRate ...................................................18
3.3.3 Assignment of Coding-Switch Labelling to Name in Schematic Diagram . . . . . . . . . . . 18
4. Technical Data ..............................................................19
4.1General technicalData .....................................................19
4.2CPU ....................................................................20
4.3CANInterface ............................................................20
4.4SerialInterface ............................................................21
4.5SoftwareSupport ..........................................................21
4.6.1 Connecting Power Supply and CAN-Signals to CBX-InRailBus . . . . . . . . . . . . . . . . . . 23
4.6.2 Connection of the Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.6.3ConnectionofCAN.....................................................25
4.7 Remove the CAN-CBX Module from the InRailBus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5. Connector Assignment ........................................................26
5.1PowerSupplyVoltage24V(X100) ...........................................26
5.2CAN ....................................................................27
5.2.1CANInterface .........................................................27
5.2.2CANConnector........................................................28
5.2.3 CAN and Power Supply Voltage via InRailBus Connector . . . . . . . . . . . . . . . . . . . . . . 29
5.3 Serial Interfaces COM A and COM B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.3.1RS-232Interface .......................................................30
5.3.2Option:RS-422Interface ................................................31
5.3.3Option:RS-485Interface ................................................31
5.3.4Option:TTY(20mA)Interface ............................................ 32
5.3.5ConnectorAssignment ..................................................33
5.4 Assignment of the Labelling on the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.5 Conductor Connection/Conductor Cross Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 6 of 125
6. Correct Wiring of Electrically Isolated CAN Networks .............................37
6.1StandardsconcerningCANWiring ............................................37
6.2 Light Industrial Environment (Single Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.1GeneralRules .........................................................38
6.2.2Cabling ..............................39
6.2.3Termination...........................................................39
6.3 Heavy Industrial Environment (Double Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . . . 40
6.3.1GeneralRules .........................................................40
6.3.2DeviceCabling ........................................................41
6.3.3Termination...........................................................41
6.4ElectricalGrounding .......................................................42
6.5BusLength ...............................................................42
6.6ExamplesforCANCables...................................................43
6.6.1 Cable for Light Industrial Environment Applications (Two-Wire) . . . . . . . . . . . . . . . . . 43
6.6.2 Cable for Heavy Industrial Environment Applications (Four-Wire) . . . . . . . . . . . . . . . . 43
7. CAN Troubleshooting Guide ..................................................44
7.1Termination ..............................................................44
7.2ElectricalGrounding .......................................................45
7.3ShortCircuitinCANWiring.................................................45
7.4CAN_H/CAN_LVoltage ...................................................45
7.5CANTransceiverResistanceTest .............................................46
7.6Supportbyesd ............................................................46
8. CANopen Firmware .........................................................47
8.1 Definition of Terms . 47
8.2NMT-Boot-up ............................................................48
8.3TheCANopen-ObjectDirectory ..............................................48
8.4 Communication Parameters of the PDOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.4.1AccessontheObjectDirectory............................................49
8.4.2 Non-volatile Storage of Parameters to EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.4.3 Restoring of Default Status of the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.5 Overview of used CANopen-Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.5.1SettingtheCOB-ID.....................................................53
8.6DefaultPDO-Assignment ...................................................54
8.7CommunicationProfileArea .................................................55
8.7.1UsedNamesandAbbreviations ...........................................55
8.8ImplementedCANopen-Objects ..............................................56
8.8.1 Overview of used 1000-Objects and Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
8.8.2 Device Type (1000
h
) ....................................................58
8.8.3 Error Register (1001
h
) ...................................................59
8.8.4 Manufacturer Status Register (1002
h
) .......................................60
8.8.5 Pre-defined Error Field (1003
h
)............................................61
8.8.6 COB-ID of SYNC-Message (1005
h
)........................................63
8.8.7 Communication Cycle Period (1006
h
).......................................64
8.8.8 Manufacturer Device Name (1008
h
) ........................................65
8.8.9 Manufacturer Hardware Version (1009
h
) ....................................66
8.8.10 Manufacturer Software Version (100A
h
)....................................66
8.8.11 Guard Time (100C
h
) und Life Time Factor (100D
h
)...........................67
8.8.12 Store Parameters (1010
h
)................................................68

CAN-CBX-COM2 Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 7 of 125
8.8.13 Restore Default Parameters (1011
h
) .......................................70
8.8.14 COB_ID Emergency Message (1014
h
) .....................................72
8.8.15 Inhibit Time EMCY (1015
h
) .............................................73
8.8.16 Consumer Heartbeat Time (1016
h
) ........................................74
8.8.17 Producer Heartbeat Time (1017
h
) .........................................76
8.8.18 Identity Object (1018
h
) .................................................77
8.8.19 Synchronous Counter Overflow Value (1019
h
)...............................79
8.8.20 Verify Configuration (1020
h
) ............................................80
8.8.21 Error Behaviour Object (1029
h
) ..........................................81
8.8.22 NMT Startup (1F80
h
) ..................................................82
8.8.23 Self Starting Nodes Timing Parameters (1F91
h
)..............................83
8.8.24 Receive PDO Communication Parameter 1400
h
, 1402
h
........................84
8.8.25 Receive PDO-Mapping Parameter 1600
h
, 1603
h
..............................86
8.8.26 Object Transmit PDO Communication Parameter 1800
h
, 1802
h
..................87
8.8.27 Transmit PDO Mapping Parameter 1A00
h
, 1A02
h
............................89
8.9TransmissionModes .......................................................90
8.9.1 Supported transmission modes according to CiA 301, Table 55 . . . . . . . . . . . . . . . . . . 90
8.10 Data Transfer and PDO Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
8.10.1 Function Description of local Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
8.11DeviceProfileArea .......................................................93
8.11.1 Overview of Implemented Objects 6000
h
...9FFF
h
............................93
8.12 Manufacturer Specific Profile Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
8.12.1 Overview of Implemented Objects 2800
h
- 2981
h
.............................94
8.12.2 Serial Communication Parameter 2800
h
, 2900
h
..............................95
8.12.3 Tx_Cycle_String 2810
h
, 2910
h
..........................................117
8.12.4 Dummy_Rx_Object 2880
h
, 2980
h
........................................118
8.12.5 Dummy_Tx_Object 2881
h
, 2981
h
........................................118
8.13 Firmware Management via CANopen Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
8.13.1 Download Control via Object 1F51
h
......................................120
8.13.2 Download Control via Object 1F52
h
......................................121
9. References .................................................................122
10. Declaration of Conformity ..................................................123
11. Order Information .........................................................124

Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 8 of 125
Typographical Conventions
Throughout this manual the following typographical conventions are used to distinguish technical
terms.
Convention Example
File and path names /dev/null or <stdio.h>
Function names open()
Programming constants NULL
Programming data types uint32_t
Variable names Count
The following indicators are used to highlight noticeable descriptions.
Attention:
Warnings or cautions to tell you about operations which might have unwanted side
effects.
Note:
Notes to point out something important or useful.
Number Representation
All numbers in this document are base 10 unless designated otherwise. For hexadecimal numbers
h
is
appended . For example, 42 is represented as 2A
h
in hexadecimal format.

Overview
CAN-CBX-COM2
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 9 of 125
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1. Overview
1.1 Description of the Module
Fig. 1: Block circuit diagram of the CAN-CBX-COM2 module
TheCAN-CBX-COM2moduleisaCANopen
®
Module,thatintegratesthecommunicationoftwoserial
interfaces into a CANopen network.
The basic version comes with two RS-232 interfaces.
The serial interface COM B can be individually configured as RS-232, RS-422, RS-485 or TTY
interface via add-on modules (Piggybacks).
As CAN-CBX module the CAN-CBX-COM2 can either be operated as individual module or it can be
connected to the InRailBus.
The CAN-CBX-COM2 module is equipped with an ARM7
®
-Microcontroller, which operates as
controller for the serial interfaces and the CAN-Bus. The CAN data are buffered in the local SRAM.
The firmware is held in the flash. The parameters are saved in a serial EEPROM.
The CAN-CBX-COM2 features the possibility to connect the power supply and the CAN bus signals
viaindividual connectorsorvia theInRailBusconnector(TBUS-connector)integratedinthemounting
rail. Individual modules can then be removed without interrupting the bus signals.
The CANinterface is designed according to ISO11898-2 high-speed layer with electrical isolation and
supports bit rates up to 1 Mbit/s.
The firmware supports CANopen according to CiA
®
301 [1].
The CANopen node number and the CAN-bit rate can be easily set via coding switches.

Quick Start
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 10 of 125
2. Quick Start
Step Action See
page
Read the safety instructions at the beginning of this document
carefully, before you start with the hardware installation! 4
Please note the chapters “Installation and Wiring of the Module“ and
“Correctly Wiring Electrically Isolated CAN Networks“! 22,
37
1 Mount the CAN-CBX-COM2 module and connect the interfaces (power
supply voltage, CAN, serial interfaces). 12
2 Please note that the CAN bus has to be terminated at both ends! esd offers
special T-connectors and termination connectors. Additionally the
CAN_GND signal has to be connected to earth at exactly one point in the
CAN network.
A CAN node with electrical connection to earth potential acts as an earth
potential.
-
3 Set the baud rate (only if it differs from the default setting)
The default baud rate is 1 MBit/s. The baud rate can be set via the coding
switch BAUD, as described in chapter: “Setting the Node-ID via Coding
Switch”.
18
4 Set the module number (node-ID).
The node ID can be set via the coding switches LOW and HIGH.
It may be set to values between 1 and 127 (01-7F
h
). 17
5 Apply the 24 V power supply voltage. -
6 Start the module with the NMT-Start Command
-
CAN-Identifier Len Data
0 2 Byte 1 0
(Node-ID,
0 = start
all
modules)

Quick Start
CAN-CBX-COM2
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 11 of 125
7 Transmit data CAN -> serial
-
CAN-Identifier Len Data
200
h
+ Node-ID 8 Byte 0...8 byte user data
COM A
400
h
+ Node-ID 8 Byte 0...8 byte user data
COM B
8 Receive data serial -> CAN
-
CAN-Identifier Len Data
180
h
+ Node-ID 8 Byte 0...8 byte user data
COM A
380
h
+ Node-ID 8 Byte 0...8 byte user data
COM B

Hardware-Installation
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 12 of 125
3. Hardware Installation
3.1 Connecting Diagram
3.1.1 Power Supply and CAN
Fig. 2: Connections of the CAN-CBX-COM2 module
Note:
Please refer to page 36 for information on conductor connection and conductor cross
section.
The connector pin assignments can be found on page 26 and following.

Hardware Installation
CAN-CBX-COM2
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 13 of 125
3.2 LED-Display
Fig. 3: Position of the LEDs in the front panel
The CAN-CBX-COM2 module is equipped with four Status LEDs and four Activity LEDs.
3.2.1 Indication of Activity-LEDs
LED Name Colour Indication Meaning
ACOM A,
Activity Tx yellow off CAN-CBX-COM2 does not transmit data on COM A
blinking CAN-CBX-COM2 transmits data on COM A
RCOM A,
Activity Rx yellow off CAN-CBX-COM2 does not receive data on COM A
blinking CAN-CBX-COM2 receives data on COM A
BCOM B,
Activity Tx yellow off CAN-CBX-COM2 does not transmit data on COM B
blinking CAN-CBX-COM2 transmits data on COM B
GCOM B,
Activity Rx yellow off CAN-CBX-COM2 does not receive data on COM B
blinking CAN-CBX-COM2 receives data on COM B
Table 2: Indication of Activity-LEDs

Hardware-Installation
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 14 of 125
3.2.2 Flash Rates of the Status LEDs
The CAN-CBX-COM2 module is equipped with 4 status LEDs.
The terms of the indicator states of the LEDs are chosen in accordance with the terms recommended
by the CiA [3]. The indicator states are described in the following chapters. In principle 8 flash rates
are defined.
Indicator state Flash rate
on LED constantly on
off LED constantly off
blinking LED blinking with a frequency of approx. 2.5 Hz
flickering LED flickering with a frequency of approx. 10 Hz
1 flash LED 200 ms on, 1400 ms off
2 flashes LED 200 ms on, 200 ms off, 200 ms on 1000 ms off
3 flashes LED 2x (200 ms on, 200 ms off) + 1x (200 ms on, 1000 ms off)
4 flashes LED 3x (200 ms on, 200 ms off) + 1x (200 ms on, 1000 ms off)
Table 3:Flash rates
Note:
RedandgreenLEDsarestrictlyswitchedinphaseoppositionaccordingtotheCANopen
Specification [3].
For certain indicator states viewing all LEDs together might lead to a misinterpretation
of the indicator states of adjacent LEDs. It is therefore recommended to look at the
indicator state of an LED individually, by covering the adjacent LEDs.
3.2.3 Operation of the CAN-Error LED
LED indication Display function
Label Name Colour Indicator
state Description
E CAN Error red
off no error
1 flash CAN controller is in Error Active state
on CAN controller state is Bus Off (or coding switch position ID-node > 7F
h
when switching on;
see ’Special Indicator States’on page 16)
2 flashes Heartbeat or Nodeguard error occurred. The LED automatically turns off, if Nodeguard/Heartbeat-
messages are received again.
Table 4: Indicator states of the red CAN Error-LED

Hardware Installation
CAN-CBX-COM2
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 15 of 125
3.2.4 Operation of the CANopen-Status LED
LED indication Display function
Label Name Colour Indicator
state Description
SCANopen
Status green
blinking Pre-operational
on Operational
1 flash Stopped
3 flashes Module is in bootloader mode (or coding switch position ID-node > 7F
h
when switching on;
see page 16)
Table 5: Indicator states of the CANopen Status-LED
3.2.5 Operation of the Error-LED
LED indication Display function
Label Name Colour Indicator state Description
M Error red
off no error
on CAN Overrun Error The data rate is set too high, therefore the firmware is not able to
transmit all data on the CAN bus.
2 flashes
Internal software error
e.g.:
- stored data have an invalid checksum therefore default values
are loaded
- internal watchdog has triggered
- indicator state is continued until the module resets or an error
occurs at the outputs.
blinking No transmission data
Table 6: Indicator state of the Error-LED
3.2.6 Operation of the Power-LED
LED indication Display function
Label Name Colour Indicator state Description
V Power green off no power supply voltage;
or the module is in Bootloader-Mode, this state is indicated by the
CANopen status-LED (3 Flashes) (see page 16)
on power supply voltage is on and application software is running
Table 7: Indicator state of the Power-LED

Hardware-Installation
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 16 of 125
3.2.7 Special Indicator States
The special indicator state described in the following table is indicated by the CANopen-Status-LED
and the CAN-Error-LED together:
LED indication Description
- CAN-Error LED: on
and
- CANopen-Status LED: 3 flashes
Invalid node ID:
The coding switches for the node-ID are set to an invalid ID-value, when
switching on. The module will be stopped.
Table 8: Special Indicator States
3.2.8 Assignment of LED Labelling to the Name in the Schematic Diagram
Labelling on the
CAN-CBX-COM2 Name in the Schematic Diagram *
1
E LED240A
S LED240B
M LED240C
V LED240D
A LED320A
R LED320B
B LED320C
G LED320D
*
1
The schematic diagram is not part of this manual.

Hardware Installation
CAN-CBX-COM2
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 17 of 125
3.3 Coding Switches
Fig. 4: Position of the coding switches
Attention:
At the moment the module is switched ‘on’, the state of the coding switches is
determined. Changes of the settings therefore have to be made before switching on the
module, because changes of the settings are not determined during operation.
After a reset (e.g. NMT reset) the settings are read again.
3.3.1 Setting the Node-ID via Coding Switch
The address range ofthe CAN-CBX-modulecan beset decimal from 1 to 127 or hexadecimal from 01
h
to 7F
h
.
The three higher-order bits (higher-order nibble) can be set with coding switch HIGH, the four lower-
order bits can be set with coding switch LOW.
Note:
Avoid the following settings:
Setting the address range of the coding switches to values higher than 7F
h
causes error
messages, the red CAN-Error LED is on.
If the coding switches are set to 00
h
, the CAN-CBX-module changes into Bootloader
mode.

Hardware-Installation
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 18 of 125
3.3.2 Setting the Baud Rate
The baud rate can be set with the coding switch Baud.
Values from 0
h
to F
h
can be set via the coding switch. The values of the baud ratecan be taken from the
following table:
Setting Bit rate
[Kbit/s]
0
1000
1
666
6
.
2
500
3
333
3
.
4
250
5
166
6
125
7
100
8
66
6
.
9
50
A
h
33
3
.
B
h
20
C
h
12
5
.
D
h
10
E
h
800
F
h
*
2
83
3
.
*
2
from firmware version 1.02 on
Table 9: Index of the baud rate
3.3.3 Assignment of Coding-Switch Labelling to Name in Schematic Diagram
Labelling on the
CAN-CBX-COM2 Name in the Schematic Diagram *
3
Baud SW401
Low SW400
High SW402
*
3)
The schematic diagram is not part of this manual.

Technical Data
CAN-CBX-COM2
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 Page 19 of 125
4. Technical Data
4.1 General technical Data
Power supply voltage nominal voltage: 24 V/DC input voltage range: 24 V ±20%
current consumption (24 V, 20
f
C): 30 mA
Connectors
24V (4-pin PCB plug connector with spring-cage connection,
X100 ) - 24V-power supply voltage
COM A (7-pin PCB plug connector, X300)
- Serial interface 1
COM B (7-pin PCB plug connector, X310)
- Serial interface 2
CAN (5-pin PCB plug connector, X400) - CAN interface
InRailBus (5-pin TBUS-connector, X101) - CAN interface and power
supply voltage via InRailBus
Only for test and programming purposes (internal):
X220 (10-pin socket connector)
Temperature range 0
f
C ... +60
f
C ambient temperature
Humidity max. 90%, non-condensing
Protection class IP20
Pollution degree maximum permissible according to DIN EN 61131-2:
Pollution Degree 2
Housing Plastic housing for carrier rail mounting NS35/7,5 DIN EN 60715
Dimensions width: 22.5 mm, height: 99 mm, depth: 114.5 mm (without connectors)
Weight approx. 135 g
Table 9: General technical data

Technical Data
Manual • Doc.-No.: C.3055.21 / Rev. 1.1 CAN-CBX-COM2Page 20 of 125
4.2 CPU
CPU 32 bit
g
C LPC2119FBD64
RAM 16 Kbyte integrated
Flash 128 Kbyte integrated
EEPROM 4 Kbyte
Table 10: Microcontroller
4.3 CAN Interface
Number 1
Connection 5-pin PCB plug connector with spring-cage connection
or via InRailBus-connector (CAN-CBX-TBUS )
CAN Controller integrated in LPC2119FBD64, ISO11898-1
Electrical isolation of CAN
interfaces against other units Isolation voltage U: 500 V (= withstand-impulse voltage according to DIN EN 60664-1)
Physical layer CAN physical layer according to ISO 11898-2, transfer rate
programmable from 10 Kbit/s up to 1 Mbit/s
Bus termination has to be set externally if required
Table 11: Data of the CAN interface