ESD CAN-CBX-AI814 User manual

CAN-CBX-AI814 Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 1 of 108
esd electronic system design gmbh
Vahrenwalder Str. 207 • 30165 Hannover • Germany
http://www.esd.eu
Phone: [phone] • Fax: [phone]
CAN-CBX-AI814
8 A/D-Converter-Inputs, 14 Bit
Manual
to Product C.3020.02

Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 2 of 108
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 companylogos used in thismanual are reserved by their respective
owners.

CAN-CBX-AI814 Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 3 of 108
Document-
File:
I:\Texte\Doku\MANUALS\CAN\CBX\AI814\Englisch\CAN-CBX-AI814_Manual_en_15.wpd
Date of print: 2014-07-18
PCB version: from CAN-CBX-AI814 Rev. 1.0
Firmware version: from Rev. 2.6
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.
Chapter
Chapter in
previous version
Changes versus previous version
- - Safety Instructions and Conformity
2.3 2.3 Description of electrical isolation changed
2.4 2.4 Accuracy of the analog inputs inserted
2.6 Order information moved and revised
3.4 3.4 Chapter updated
4. 4. and 5. Chapters combined and revised
4.4 Chapter ‘Conductor Connection / Conductor Cross Section’ inserted
5. 6. Chapter moved and updated
6. 7. Chapter moved and updated
7. 8. Chapter moved, note to installation and wiring inserted
8. 9. Chapter ‘Software’ renamed to ‘CANopen-Firmware’, general part (chapter 8.1 -8.4) updated and
restructured
8.6 9.5 Description of the parameters inserted
8.8 - Chapter ‘Used Names and Abbreviations’ inserted
8.9.1 9.7 Product-specific properties of CAN-CBX-AI814 described in table, new objects 1F80
h
, 1F91
h
8.9.2 -
8.9.21 9.71-9.7.20 Chapter revised, description of the product-specific properties removed to table in‘Overview of
Communication Profile-Specific Objects with Product-Specific Properties (chapter 8.9.1), objects 1010
h
and 1011
h
inserted
8.9.22 - New chapter ‘NMT Startup (1F80
h
)’
8.9.23 - New chapter ‘Self Starting Nodes Timing Parameters (1F91
h
)’
9. 10. Chapter revised
10. - EU Declaration of Conformity updated
11. 2.6 Chapter moved
Technical details are subject to change without further notice.

Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 4 of 108
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 only be 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.
Note: To ensure EU Conformity a cable with a maximum wire length of 3 m has to be used for the analog
inputs.
Intended Use
The intended use of the CAN-CBX module is the operation as a CANopen module with analog inputs.
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-AI814 Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 5 of 108
Contents
1. Overview ....................................................................9
1.1DescriptionoftheModule .................................................9
2. Technical Data ..............................................................10
2.1General technicalData...................................................10
2.2CPU-Unit .............................................................11
2.3CANInterface..........................................................11
2.4AnalogInputs ..........................................................12
2.5SoftwareSupport .......................................................12
3. Hardware Installation ........................................................13
3.1ConnectingDiagram.....................................................13
3.2LEDDisplay...........................................................14
3.2.1IndicatorStates...................................................14
3.2.2 Operation of the CAN-Error LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.3 Operation of the CANopen-Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.4OperationoftheError-LED.........................................16
3.2.5OperationofthePower-LED ........................................ 16
3.2.6SpecialIndicatorStates ............................................16
3.2.7 Assignment of LED Labelling to Name in Schematic Diagram . . . . . . . . . . . . . 17
3.3CodingSwitches........................................................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 Installation of the Module Using InRailBus Connector . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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 Assignment ........................................................24
4.1 Power Supply Voltage 24 V (X100) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2CANBus(X400) .......................................................25
4.2.1CANInterface ...................................................25
4.2.2CANConnector(X400)............................................26
4.2.3 CAN and Power Supply Voltage via InRailBus Connector . . . . . . . . . . . . . . . . 27
4.3AnalogInputs(X500)....................................................28
4.3.1AnalogInputCircuit ..............................................28
4.3.2 Connector Assignmant Analog Inputs (X500) . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4 Conductor Connection/Conductor Cross Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5. Correct Wiring of Electrically Isolated CAN Networks .............................31
5.1 Light Industrial Environment (Single Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . . 31
5.1.1GeneralRules....................................................31
5.1.2Cabling .......................................32
5.1.3Termination .....................................................32
5.2 Heavy Industrial Environment (Double Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . 33
5.2.1GeneralRules....................................................33

Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 6 of 108
5.2.2DeviceCabling...................................................34
5.2.3Termination .....................................................34
5.3ElectricalGrounding.....................................................35
5.4BusLength ............................................................35
5.5ExamplesforCANCables ................................................36
5.5.1 Cable for Light Industrial Environment Applications (Two-Wire) . . . . . . . . . . . 36
5.5.2 Cable for Heavy Industrial Environment Applications (Four-Wire) . . . . . . . . . . 36
6. CAN-Bus Troubleshooting Guide ..............................................37
6.1Termination ...........................................................37
6.2Ground ...............................................................38
6.3ShortCircuitinCANWiring ..............................................38
6.4CAN_H/CAN_LVoltage ................................................38
6.5 CAN Transceiver Resistance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7. Quick Start Guide ...........................................................40
8. CANopen Firmware .........................................................42
8.1 Definition of Terms . . . . . . . . . . . 42
8.2NMT-Boot-up..........................................................43
8.3TheCANopen-ObjectDirectory............................................43
8.4 Communication Parameters of the PDOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
8.4.1 Access on the Object Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
8.5 Overview of used CANopen-Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8.5.1SettingtheCOB-ID ...............................................47
8.6DefaultPDO-Assignment.................................................48
8.7ReadingtheAnalogValues ...............................................49
8.7.1 Messages of the Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.7.2 Supported Transmission Types Based on DS-301 . . . . . . . . . . . . . . . . . . . . . . . . 49
8.8CommunicationProfileArea ..............................................50
8.8.1 Used Names and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.9ImplementedCANopen-Objects ...........................................51
8.9.1 Overview of Communication Profile Objects with Product-Specific Properties
..........................................................51
8.9.2 Device Type (1000
h
) ..............................................53
8.9.3 Error Register (1001
h
) .............................................54
8.9.4 Pre-defined Error Field (1003
h
) ......................................55
8.9.5 COB-ID of SYNC-Message (1005
h
) ..................................57
8.9.6 Communication Cycle Period (1006
h
) .................................58
8.9.7 Manufacturer Device Name (1008
h
) ..................................59
8.9.8 Manufacturer Hardware Version (1009
h
)...............................60
8.9.9 Manufacturer Software Version (100A
h
)...............................60
8.9.10 Guard Time (100C
h
) und Life Time Factor (100D
h
) .....................61
8.9.11 Node Guarding Identifier (100E
h
) ...................................62
8.9.12 Store Parameters (1010
h
) ..........................................63
8.9.13 Restore Default Parameters (1011
h
)..................................65
8.9.14 COB_ID Emergency Message (1014
h
)................................67
8.9.15 Inhibit Time EMCY (1015
h
) .......................................68
8.9.16 Consumer Heartbeat Time (1016
h
) ..................................69
8.9.17 Producer Heartbeat Time (1017
h
) ...................................71

CAN-CBX-AI814 Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 7 of 108
8.9.18 Identity Object (1018
h
)............................................72
8.9.19 Synchronous Counter Overflow Value (1019
h
) .........................74
8.9.20 Verify Configuration (1020
h
).......................................75
8.9.21 Error Behaviour Object (1029
h
).....................................76
8.9.22 NMT Startup (1F80
h
).............................................77
8.9.23 Self Starting Nodes Timing Parameters (1F91
h
) ........................78
8.9.24 Object Transmit PDO Communication Parameter (1801
h,
1802
h
)...........79
8.9.25 Transmit PDO Mapping Parameter (1A01
h
, 1A02
h
) .....................80
8.10DeviceProfileArea ....................................................81
8.10.1 Overview of the Implemented Objects 6401
h
...6426
h
....................81
8.10.2 Relationship Between the Implemented Analog Input Objects . . . . . . . . . . . . . 82
8.10.3 Read Input 16-Bit (6401
h
) .........................................83
8.10.4 Read Input 32-Bit (6402
h
) .........................................85
8.10.5 Read Input Raw Data 16-Bit (6404
h
).................................87
8.10.6 Analog Interrupt Trigger Selection (6421
h
) ............................88
8.10.7 Global Interrupt Enable (6423
h
).....................................89
8.10.8 Interrupt Upper Limit (6424
h
) ......................................90
8.10.9 Interrupt Lower Limit (6425
h
) ......................................91
8.10.10 Analog Input Interrupt Delta (6426
h
)................................92
8.11 Manufacturer Specific Profile Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
8.11.1 Overview of Manufacturer Specifc Objects 2310
h
... 2405
h
...............94
8.11.2 Sample Time (2310
h
) .............................................95
8.11.3 Sample Time Actual Value (2312
h
)..................................97
8.11.4 Channel Enabled (2401
h
) ..........................................98
8.11.5 Accu N (2402
h
)..................................................99
8.11.6 Average N (2403
h
) ..............................................100
8.11.7 Calibration Offset Value (2404
h
) ...................................101
8.11.8 Calibration Gain Value (2405
h
) ....................................102
8.12 Firmware Update via DS-302-Objects 1F50
h
...1F52
h
.........................103
8.12.1 Download Control via Object (1F51
h
)...............................104
8.12.2 Verify Application Software (1F52
h
)................................104
9. References .................................................................105
10. EU Declaration of Conformity ...............................................106
11. Order Information .........................................................107

Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 8 of 108
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-AI814
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 9 of 108
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1. Overview
1.1 Description of the Module
Fig. 1: Block circuit diagram of the CAN-CBX-AI814 module
The CAN-CBX-AI814 module is aCANopen module with eight A/D-converterinputs and InRailBus.
It is equipped with a MB90F497 microcontroller. The firmware is held in the flash. Parameters are
stored in a serial EEPROM.
The 14-bit A/D-converter, a TLC3578, converts the eight analog inputs.
The inputs are connected via a 12-pole plug with spring-cage connections. The analog inputs are
electrically isolated by digital isolators.
The power supply voltage and the CAN-bus connection can be fed via the InRailBus connector,
integrated in the top hat rail, or via separate plugs.
The ISO 11898 compliant CAN interface allows a maximum data transfer rate of 1 Mbit/s. The CAN
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 three coding switches.

Technical Data
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 10 of 108
2. Technical Data
2.1 General technical Data
Power supply voltage
nominal voltage: 24 V/DC
input voltage range: 24 V ±20%
current consumption (24 V, 20
e
C): typically: 40 mA
maximum: 45 mA
Connectors
24V (4-pin printed circuit board connector with spring-cage
connection, X400 ) - 24V-power supply voltage
InRailBus (5-pin ME-MAX-TBUS-connector, Phoenix Contact, X101)
- CAN interface and power supply voltage via InRailBus
1G ... 8P (12-pin printed circuit board connector, X500)
- analog inputs
CAN (5-pin printed circuit board connector, X400)
- CAN interface
Only for test and programming purposes (internal):
X200 (6-pin printed circuit board connector connector)
Temperature range -20
e
C ... +70
e
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: 2.2 cm, height: 11.2 cm, depth: 11.3 cm
(including mounting rail fitting and connector projection)
Weight approx. 125 g
Table 1: General technical data

Technical Data
CAN-CBX-AI814
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 11 of 108
2.2 CPU-Unit
CPU 16 bit
f
C MB90F497
RAM 2 Kbyte integrated
Flash 64 Kbyte integrated
EEPROM minimum 256 byte
Table 2: Microcontroller
2.3 CAN Interface
Number 1
Connection 5-pin COMBICON with spring-cage connection
or via Phoenix Contact TBUS-connector (InRailBus)
CAN Controller MB90F497, ISO11898-1 (CAN 2.0)
(CANopen software supports only 11-bit CAN identifier)
Electrical isolation of CAN
interfaces against other units via digital Isolator and DC/DC-converter
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 3: Data of the CAN interface

Technical Data
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 12 of 108
2.4 Analog Inputs
Number 8 A/D-converter channels
Converter-Type TLC3578
Resolution 14 bit via A/D converter
Input voltage rage ±10.24 V
Accuracy input voltage ±9.2 V error < 5 mV
Drift temperature range ±50 ppm/
g
C
Conversion time
h
100
i
s / 8 channels simultaneously
Electrical isolation against other
units via dual digital isolator
Input impedance typically 10 k
j
Table 4: Data of analog inputs
2.5 Software Support
Thefirmwareof the module supportsCANopen
®
accordingto CiA
®
CANopenspecificationsCiA301
[1] and CiA DS-401 [2].

Hardware Installation
CAN-CBX-AI814
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 13 of 108
3. Hardware Installation
3.1 Connecting Diagram
Fig. 2: Connections of the CAN-CBX-AI814 module
Note:
The connector pin assignment can be found on page 24 and following.
For conductor connection and conductor cross section see page 30.

Hardware-Installation
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 14 of 108
3.2 LED Display
Fig. 3: Position of the LEDs in the front panel
The CAN-CBX-AI814 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.
3.2.1 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 5: Indicator states

Hardware Installation
CAN-CBX-AI814
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 15 of 108
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.
3.2.2 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 6: Indicator states of the red CAN Error-LED
3.2.3 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 16)
Table 7: Indicator states of the CANopen Status-LED

Hardware-Installation
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 16 of 108
3.2.4 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 sample rate is set so high, that 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.
Table 8: Indicator state of the Error-LED
3.2.5 Operation of the Power-LED
LED indication Display function
Label Name Colour Compone
nt No. Indicator state Description
P Power green 200D 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 and application software
is running
Table 9: Indicator state of the Power-LED
3.2.6 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
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 not be
started.
Table 10: Special Indicator States

Hardware Installation
CAN-CBX-AI814
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 17 of 108
3.2.7 Assignment of LED Labelling to Name in Schematic Diagram
Labelling on
CAN-CBX-AI814 Name of the LED in Schematic Diagram*
E LED200A
S LED200B
M LED200C
P LED200D
* The Schematic Diagram is not part of this manual.

Hardware-Installation
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 18 of 108
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 of the CAN-CBX-module canbe set decimal from 1 to 127 orhexadecimal 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 turns on.
If the coding switches are set to 00
h
, the CAN-CBX-AI814 changes into Bootloader
mode.

Hardware Installation
CAN-CBX-AI814
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 Page 19 of 108
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
[Hex] 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
33 3,
B
20
C
12 5,
D
10
E *
1)
800
F *
1)
*
2
83 3,
*
1)
implemented since firmware version 2.03
Table 11: Index of the baud rate
3.3.3 Assignment of Coding-Switch Labelling to Name in Schematic Diagram
Labelling on the
CAN-CBX-AI814 Name in the Schematic Diagram *
2)
Baud SW301
Low SW300
High SW302
*
2) The Schematic Diagram is not part of this manual.

Hardware-Installation
Manual • Doc.-No.: C.3020.21 / Rev. 1.5 CAN-CBX-AI814Page 20 of 108
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