ESD CAN-CBX-REL4 User manual

CAN-CBX-REL4 Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 1 of 99
esd electronic system design gmbh
Vahrenwalder Str. 207 • 30165 Hannover • Germany
http://www.esd.eu
Phone: [phone] • Fax: [phone]
CAN-CBX-REL4
CANopen Module with 4 Relay Outputs
with InRailBus
Manual
to Product C.3012.02

Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4Page 2 of 99
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.
© 2014 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 company logos used in this manual are reserved by their respective
owners.

CAN-CBX-REL4 Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 3 of 99
Document-
File:
I:\Texte\Doku\MANUALS\CAN\CBX\REL4\English\CAN-CBX-REL4_Manual_en_11.wpd
Date of print: 2014-11-20
PCB version: from CAN-CBX-REL4 Rev. 1.2
Firmware version: from Rev.2.03
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.
Version Chapter Changes versus previous version
1.1
- Note to Safety Instructions , conformity etc. and Typographical Conventions inserted
1.1 Block circuit diagram (connector name InRailBus) updated
2. Technical data revised
3.1 Note to Conductor Connection /Conductor Cross Section inserted
3.2 Description of the LEDs updated
3.3 Figure updated, description of the coding switches and baud rates revised
4. Former chaper “Description of the Units”moved to sub-section of chapter “Connector Assignment”. Connector Assignments revised, note to “Conductor Connection
/Conductor Cross Section” inserted
5. Chapter moved and updated
6. Chapter moved and updated
7. Chapter “Software” renamed to “CANopen-Firmware”, general part (chapter 7.1 - 7.4)
updated and restructured
7.8 Chapter to “Definition of Terms” inserted
7.9.1 Product-specific Properties CAN-CBX-REL4 inserted in table, new objects 1005
h
,, 1019
h
,
1F80
h
, 1F91
h
7.9.2-
7.9.21
Chapter revised, description of the product-specific properties only contained in the table
in “Overview of Communication Profile Objects with Product-Specific Values ” (chapter
7.9.1)
7.9.22 New chapter “NMT Startup (1F80
h
)”
7.9.23 New Chapter “Self Starting Nodes Timing Parameters (1F91
h
)”
7.9.25 Figure 19-21 revised
7.10 Figure 22 updated, chapter revised
7.10.5 Description of object 6421
h
revised
8. Chapter inserted
9. EU Declaration of Conformity inserted
10. Chapter “Order Information” moved and revised
Technical details are subject to change without further notice.

Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4Page 4 of 99
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 theproduct mayonly be carried out byqualified personal, which isauthorized 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 four relay outputs.
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-REL4 Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 5 of 99
Contents
1. Overview ....................................................................9
1.1DescriptionoftheModule....................................................9
2. Technical Data ..............................................................10
2.1GeneraltechnicalData .....................................................10
2.2CPU-Unit................................................................11
2.3CANInterface ............................................................ 11
2.4Relay-Connection .........................................................12
2.5Software-Support .........................................................12
3. Hardware Installation ........................................................13
3.1ConnectingDiagram .......................................................13
3.2LEDDisplay .............................................................14
3.2.1RelayLEDs1-4 .......................................................14
3.2.2IndicatorStates .......................................................15
3.2.3 Operation of the CAN-Error LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.4 Operation of the CANopen-Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.5OperationoftheError-LED..............................................16
3.2.6 Operation of the Module Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.7SpecialIndicatorStates .................................................17
3.2.8 Assignment of LED Labelling to Name in Schematic Diagram . . . . . . . . . . . . . . . . . . 17
3.3CodingSwitch............................................................18
3.3.1 Setting the Node-ID via Coding Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.2SettingtheBaudRate ..................................................19
3.3.3 Assignment of Coding-Switch Labelling to Name in Schematic Diagram . . . . . . . . . . 19
3.4.1 Connecting Power Supply and CAN-Signals to CBX-InRailBus . . . . . . . . . . . . . . . . . 21
3.4.2 Connection of the Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4.3ConnectionofCAN....................................................23
3.5 Remove the CAN-CBX Module from the InRailBus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4. Connector Assignments .......................................................24
4.1PowerSupplyVoltage24V(X100) ...........................................24
4.2CAN ...................................................................25
4.2.1CANInterface ........................................................25
4.2.2CANConnector.......................................................26
4.2.3 CAN and Power Supply Voltage via InRailBus Connector . . . . . . . . . . . . . . . . . . . . . 27
4.3RelayOutputs ............................................................28
4.4 Conductor Connection/Conductor Cross Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5. Correct Wiring of Electrically Isolated CAN Networks .............................30
5.1 Light Industrial Environment (Single Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.1GeneralRules ........................................................30
5.1.2Cabling .......................................31
5.1.3Termination ..........................................................31
5.2 Heavy Industrial Environment (Double Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2.1GeneralRules ........................................................32
5.2.2DeviceCabling .......................................................33
5.2.3Termination ..........................................................33

Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4Page 6 of 99
5.3ElectricalGrounding.......................................................34
5.4BusLength ..............................................................34
5.5ExamplesforCANCables ..................................................35
5.5.1 Cable for Light Industrial Environment Applications (Two-Wire) . . . . . . . . . . . . . . . . 35
5.5.2 Cable for Heavy Industrial Environment Applications (Four-Wire) . . . . . . . . . . . . . . . 35
6. CAN-Bus Troubleshooting Guide ..............................................36
6.1Termination .............................................................36
6.2Ground .................................................................37
6.3ShortCircuitinCANWiring ................................................37
6.4CAN_H/CAN_LVoltage ...................................................37
6.5CANTransceiverResistanceTest ............................................38
7. CANopen Firmware .........................................................39
7.1 Definition of Terms . . . . . . . . . . . 39
7.2NMT-Boot-up ............................................................40
7.3TheCANopen-ObjectDirectory..............................................40
7.4 Communication Parameters of the PDOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.4.1AccessontheObjectDirectory...........................................41
7.5 Overview of used CANopen-Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.5.1SettingtheCOB-ID....................................................44
7.6DefaultPDO-Assignment ...................................................45
7.7SettingtheRelays .........................................................46
7.7.1 Supported Transmission Types Based on CiA 301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.8CommunicationProfileArea ................................................47
7.8.1UsedNamesandAbbreviations ..........................................47
7.9ImplementedCANopen-Objects..............................................48
7.9.1 Overview of Communication Profile Objects with Product-Specific Values . . . . . . . . 48
7.9.2 Device Type (1000
h
) ...................................................50
7.9.3 Error Register (1001
h
) ..................................................51
7.9.4 Pre-defined Error Field (1003
h
)...........................................52
7.9.5 COB-ID of SYNC-Message (1005
h
) .......................................54
7.9.6 Communication Cycle Period (1006
h
)......................................55
7.9.7 Manufacturer Device Name (1008
h
) .......................................56
7.9.8 Manufacturer Hardware Version (1009
h
) ...................................57
7.9.9 Manufacturer Software Version (100A
h
)....................................57
7.9.10 Guard Time (100C
h
) und Life Time Factor (100D
h
) ..........................58
7.9.11 Node Guarding Identifier (100E
h
) ........................................59
7.9.12 Store Parameters (1010
h
)...............................................60
7.9.13 Restore Default Parameters (1011
h
) ......................................62
7.9.14 COB_ID Emergency Message (1014
h
) ....................................64
7.9.15 Inhibit Time EMCY (1015
h
) ............................................65
7.9.16 Consumer Heartbeat Time (1016
h
) .......................................66
7.9.17 Producer Heartbeat Time (1017
h
) ........................................68
7.9.18 Identity Object (1018
h
) ................................................69
7.9.19 Synchronous Counter Overflow Value (1019
h
)..............................71
7.9.20 Verify Configuration (1020
h
)............................................72
7.9.21 Error Behaviour Object (1029
h
)..........................................73
7.9.22 NMT Startup (1F80
h
)..................................................74
7.9.23 Self Starting Nodes Timing Parameters (1F91
h
) .............................75

CAN-CBX-REL4 Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 7 of 99
7.9.24 Receive PDO Communication Parameter (1400
h
- 1403
h
) .....................76
7.9.25 Receive PDO Mapping Parameter (1600
h
- 1603
h
) ...........................77
7.9.25.1 Synchronous Setting of the Relays of 8 CAN-CBX-REL4-Modules: . . . . . . . . . 78
7.9.25.2 Switching the four Relays of a Module with Mapping of Bit-Objects . . . . . . . . 80
7.9.25.3 Switching the four relays of a module with different PDOs . . . . . . . . . . . . . . . . 81
7.10DeviceProfileArea.......................................................82
7.10.1 Overview of implemented Objects 6200
h
... 6270
h
...........................82
7.10.2 Write Output 8-Bit (6200
h
) .............................................83
7.10.3 Change Polarity Output 8-bit (6202
h
) .....................................84
7.10.4 Error Mode Output 8-bit (6206
h
).........................................85
7.10.5 Error Value Output 8-bit (6207
h
).........................................86
7.10.6 Filter Mask Output 8-bit (6208
h
).........................................87
7.10.7 Write Output Bit 1 to 4 (6220
h
)..........................................88
7.10.8 Change Polarity Bit 1 to 4 (6240
h
)........................................89
7.10.9 Error Mode Output Bit 1 to 4 (6250
h
) .....................................90
7.10.10 Error Value Output Bit 1 to 4 (6260
h
)....................................91
7.10.11 Filter Mask Output Bit 1 to 4 (6270
h
) ....................................92
7.11 Manufacturer Specific Profile Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7.12 Firmware Update via DS-302-Objects 1F50
h
...1F52
h
.............................94
7.12.1 Download Control via Object (1F51
h
).....................................95
7.12.2 Verify Application Software (1F52
h
) .....................................95
8. References ..................................................................96
9. EU Declaration of Conformity .................................................97
10. Order Information ..........................................................98

Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4Page 8 of 99
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-REL4
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 9 of 99
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1. Overview
1.1 Description of the Module
Fig. 1: Block circuit diagram of the CAN-CBX-REL4 module
The CAN-CBX-REL4 module offers four monostable relay outputs. Two of these are normally open
contacts and two are change over contacts.
The individual channels are electrically isolated and therefore various voltages can be applied to the
CAN-CBX-REL4 module simultaneously.
The CAN-CBX-REL4module is equipped with a MB90F497 microcontroller, which buffers theCAN
datainto alocalSRAM.The firmwareisstoredintheFlash.Parametersarestoredin aserialEEPROM.
The power supply voltage and the CAN bus connection can either be fed via the InRailBus connector,
integrated in the top-hat-rail, or via separate plugs.
TheISO11898-2-compliantCANinterfaceallowsamaximumdatatransferrateof1Mbit/s.TheCAN-
interface is electrically isolated by a digital isolator and a DC/DC-converter.
The CANopen node number and the CAN-bit rate can be configured via coding switches.

Technical Data
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4
Page 10 of 99
2. Technical Data
2.1 General technical Data
Power supply voltage nominal voltage: 24 V/DC input voltage range: 18...30 V/DC
current consumption (24 V, 20
m
C): approx. 100 mA
Connectors
24V (4-pin line connector with spring-cage connection, X100) -
24 V-power supply voltage
InRailBus (5-pin CAN-CBX-TBUS, Phoenix Contact, X101) -
CAN interface and power supply voltage via InRailBus
11-44 (10-pin line connector with screw connection, X300) -
Relay outputs (2 monostable change over contacts,
2 monostable normally open contacts)
CAN (5-pin line connector with spring-cage connection, X600) -
CAN interface
Only for test and programming purposes:
X200 (6-pin connector) - the connector is placed inside the case
Temperature range -20
m
C ... +70
m
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, length: 99 mm, constructional height: 114.5 mm
(dimensions without mating connectors)
Weight 145 g
Table 1: General technical data of the module

Technical Data
CAN-CBX-REL4
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 11 of 99
2.2 CPU-Unit
CPU 16 bit
n
C MB90F497
RAM 2 Kbyte integrated
Flash 64 Kbyte integrated
EEPROM 128 byte
Table 2: Microcontroller
2.3 CAN Interface
Number 1
CAN Controller MB90F497, ISO11898-1
(CANopen software supports only 11-bit CAN identifier)
Electrical isolation of CAN
interfaces against other units via dual digital isolator (ADUM120BR) and DC/DC- converters
Physical layer CAN physical layer according to ISO 11898-2,
transfer rate programmable from 10 Kbit/s up to 1 Mbit/s
Bustermination has to be set externally if required
Connection 5-pin connector with spring-cage connection or via CAN-
CBX-TBUS-connector (InRailBus)
Table 3: Data of the CAN interface

Technical Data
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4
Page 12 of 99
2.4 Relay-Connection
Number 2 relays with monostable change over contacts,
2 relays with monostable normally open contacts
Relay type OMRON G6C-211x
Max. switching voltage 250 VAC, 125 VDC
Max. switching current 8 A (AC and DC)
Max. switching power resistive load: 2000 VA / 240 W;
inductive load: 875 VA / 170 W
Max. switching
frequency 30 operations per minute
Endurance mechanical
load 100 000 cycles
Table 4: Relay
2.5 Software-Support
Thefirmwareof the modulesupports CANopen
®
accordingtoCiA
®
CANopen profile CiA 301 [1] and
CiA DS-401 [2].
The CAN-CBX-REL4 EDS file can be downloaded from the esd website www.esd.eu.

Hardware-Installation
CAN-CBX-REL4
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 13 of 99
3. Hardware Installation
3.1 Connecting Diagram
Fig. 2: Connections of the CAN-CBX-REL4 module
Note:
The connector pin assignment can be found on page 24 and following.
For conductor connection and conductor cross section see page 29.

Hardware-Installation
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4
Page 14 of 99
3.2 LED Display
Fig. 3: Position of the LEDs in the front panel
The CAN-CBX-REL4 module is equipped with four Status LEDs and four relay 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 of the LEDs are described in the following chapters.
3.2.1 Relay LEDs 1-4
The four lower green LEDs show the states of the relays.
Label
Component
No.
Indication
LED on LED off
1
LED300A
Relay 1 energized Relay 1 de-energized
2
LED300B
Relay 2 energized Relay 2 de-energized
3
LED300C
Relay 3 energized Relay 3 de-energized
4
LED300D
Relay 4 energized Relay 4 de-energized
Table 5: Indication of LEDs 1-4

Hardware-Installation
CAN-CBX-REL4
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 15 of 99
3.2.2 Indicator States
In principle there are 8 indicator states distinguished:
Indicator state Display
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 6: Indicator states
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, in 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 17)
2 flashes Heartbeat or Nodeguard error occurred. The LED automatically turns off, if
Nodeguard/Heartbeat-messages are received again.
Table 7: Indicator states of the red CAN Error-LED

Hardware-Installation
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4
Page 16 of 99
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, the power LED is off, (or coding switch position ID-node > 7F
h
when
switching on; see page 17)
Table 8: 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
error on an error-controlled output
- if the module has switched to the state stopped due to an
error, the LED remains on, even if the error is no longer
existing
- errors that occur after changing to stopped state are not
indicated
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.
Table 9: Indicator state of the Error-LED

Hardware-Installation
CAN-CBX-REL4
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 17 of 99
3.2.6 Operation of the Module Status LED
LED indication Display function
Label Name Colour Indicator state Description
PModule
Status green off no power supply voltage;
or the module is in Bootloader-Mode, this state is indicated
by the CANopen status-LED (3 Flashes)
on power supply voltage is on
Table 10: Indicator state of the Power-LED
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
CANopen-Status LED: 3 flashes
and
CAN-Error LED: on
The coding switches for the node-ID are set to an invalid ID-value,
when switching on. The firmware application will be stopped.
Table 11: Special Indicator States
3.2.8 Assignment of LED Labelling to Name in Schematic Diagram
Labelling on
CAN-CBX-AI420 Name of the LED in Schematic Diagram*
1)
E LED200A
S LED200B
M LED200C
P LED200D
*
1) The Schematic Diagram is not part of this manual.

Hardware-Installation
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4
Page 18 of 99
3.3 Coding Switch
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 addressrange of the CAN-CBX-module can be set 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
CAN-CBX-REL4
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 Page 19 of 99
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 codingswitch. The values of the baud rate can 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)
implemented since firmware version 2.02
Table 12: Index of the baud rate
3.3.3 Assignment of Coding-Switch Labelling to Name in Schematic Diagram
Labelling on the
CAN-CBX-AI420 Name in the Schematic Diagram *
1)
Baud SW501
Low SW500
High SW502
*
1) The Schematic Diagram is not part of this manual.

Hardware-Installation
Manual • Doc.-No.: C.3012.21 / Rev. 1.1 CAN-CBX-REL4
Page 20 of 99
3.4 Installation of the Module Using InRailBus Connector
If the CAN bus signals and the power supply voltage shall be fed via the InRailBus, please proceed as
follows:
Figure 5: Mounting rail with bus connector
1. Position the InRailBus connector on the mounting rail and snap it onto the mounting rail using
slight pressure. Plug the bus connectors together to contact the communication and power signals
(in parallel with one). The bus connectors can be plugged together before or after mounting the
CAN-CBX modules.
2. Place the CAN-CBX module with the DIN rail guideway on the top edge of the mounting rail.
Figure 6 :Mounting CAN-CBX modules
3. SwiveltheCAN-CBXmoduleontothemountingrailinpressingthemoduledownwardsaccording
to the arrow as shown in figure 6. The housing is mechanically guided by the DIN rail bus
connector.