ESD CAN-CBX-Pt100 User manual

CAN-CBX_Pt100 Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 1 of 120
esd electronic system design gmbh
Vahrenwalder Str. 207 • 30165 Hannover • Germany
http://www.esd.eu
Phone: [phone] • Fax: [phone]
CAN-CBX-Pt100
4x RTD (PT100, PT1000)
Manual
to Product C.3032.02

Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 2 of 120
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 bytheir respective
owners.

CAN-CBX_Pt100 Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 3 of 120
Document-
File:
I:\Texte\Doku\MANUALS\CAN\CBX\PT100\Englisch\CAN-CBX-PT100_Manual_en_11.wpd
Date of print: 2014-12-19
PCB version: CAN-CBX_Pt100 Rev. 1.0
Firmware version: from V 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.
Revision Chapter Changes versus previous version
1.0 - First English Version
1.1
- Safety Information revised, Typographical Conventions inserted
3. Technical data revised
4.2, 4.3 Chapter revised
5.3 Order No. of connector inserted
6., 7. Chapters revised
8. Chapter restructured, Chapter “Communication Profile Area” inserted
9. References revised
11. EU Declaration of Conformity updated
Technical details are subject to change without further notice.

Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 4 of 120
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.
Intended Use
The intended use of the CAN-CBX module is the operation as a CANopen slave with temperature sensor.
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
TheCAN-CBXmoduledoes notcontainanypartsthatrequiremaintenancebytheuser.TheCAN-CBXmodule
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_Pt100 Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 5 of 120
Contents
1. Overview ....................................................................8
1.1DescriptionoftheModule....................................................8
2. Quick Start .................................................................10
3. Technical Data ..............................................................11
3.1General technicalData .....................................................11
3.2Microcontroller ...........................................................12
3.3CANInterface ............................................................12
3.4SensorResistorInputs......................................................13
3.5SoftwareSupport..........................................................13
4.1ConnectingDiagram .......................................................14
4.1.1PowerSupplyandCAN ...............................................14
4.1.2 Connect Temperature Sensor in 2-Wire Configuration (Example Pt2) . . . . . . . . . . . 15
4.1.3 Connect Temperature Sensor in 4-Wire Configuration (Example Pt2) . . . . . . . . . . . 16
4.2LEDDisplay .............................................................17
4.2.1IndicatorStates ......................................................17
4.2.2 Operation of the CAN-Error LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.3 Operation of the CANopen-Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.4OperationoftheError-LED ............................................19
4.2.5OperationofthePower-LED ...........................................19
4.2.6SpecialIndicatorStates................................................20
4.2.7 Assignment of the LED Labelling to the Name in the Schematic Diagram . . . . . . . . 20
4.3CodingSwitches ..........................................................21
4.3.1 Setting the Node-ID via Coding Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3.2SettingtheBaudRate .................................................22
4.3.3 Assignment of Coding-Switch Labelling to Name in Schematic Diagram . . . . . . . . 22
4.4.1 Connecting Power Supply and CAN-Signals to CBX-InRailBus . . . . . . . . . . . . . . . 24
4.4.2 Connection of the Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.4.3ConnectionofCAN ..................................................26
4.5 Remove the CAN-CBX Module from the InRailBus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5. Connector Assignment ........................................................27
5.1PowerSupplyVoltage24V(X100) ...........................................27
5.2CAN ...................................................................28
5.2.1CANInterface.......................................................28
5.2.2CANConnector .....................................................29
5.2.3 CAN and Power Supply Voltage via InRailBus Connector . . . . . . . . . . . . . . . . . . . 30
5.3 Temperature Sensor Interface Pt1...Pt4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.3.1 Assignment of Module Labelling to Name in Schematic Diagram . . . . . . . . . . . . . . 32
5.4 Conductor Connection/Conductor Cross Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6. Correct Wiring of Electrically Isolated CAN Networks .............................34
6.1StandardsconcerningCANWiring............................................34
6.2 Light Industrial Environment (Single Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.1GeneralRules .......................................................35
6.2.2Cabling ..............................36
6.2.3Termination ........................................................36
6.3 Heavy Industrial Environment (Double Twisted Pair Cable) . . . . . . . . . . . . . . . . . . . . . . . . 37
6.3.1GeneralRules .......................................................37

Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 6 of 120
6.3.2DeviceCabling ......................................................38
6.3.3Termination ........................................................38
6.4ElectricalGrounding.......................................................39
6.5BusLength ..............................................................39
6.6ExamplesforCANCables ..................................................40
6.6.1 Cable for Light Industrial Environment Applications (Two-Wire) . . . . . . . . . . . . . . 40
6.6.2 Cable for Heavy Industrial Environment Applications (Four-Wire) . . . . . . . . . . . . . 40
7. CAN Troubleshooting Guide ..................................................41
7.1Termination .............................................................41
7.2ElectricalGrounding ......................................................42
7.3ShortCircuitinCANWiring ................................................42
7.4CAN_H/CAN_LVoltage ...................................................42
7.5CANTransceiverResistanceTest ............................................43
7.6Supportbyesd............................................................43
8. CANopen Firmware .........................................................44
8.1 Definition of Terms . 44
8.2NMT-Boot-up ............................................................45
8.3TheCANopen-ObjectDirectory..............................................45
8.4 Communication Parameters of the PDOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.4.1 Access on the Object Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.5 Overview of used CANopen-Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.5.1SettingtheCOB-ID ..................................................49
8.6DefaultPDO-Assignment ...................................................50
8.7ReadingtheAnalogValues..................................................51
8.7.1MessagesoftheAnalogInputs..........................................51
8.7.2 Supported Transmission Types Based on DS-301 . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.8CommunicationProfileArea ................................................52
8.8.1UsedNamesandAbbreviations .........................................52
8.9ImplementedCANopen-Objects..............................................53
8.9.1 Overview of used 1000-Objects and Default Values . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.9.2 Device Type (1000
h
)..................................................55
8.9.3 Error Register (1001
h
).................................................56
8.9.4 Pre-defined Error Field (1003
h
) .........................................57
8.9.5 COB-ID of SYNC-Message (1005
h
)......................................59
8.9.6 Communication Cycle Period (1006
h
) ....................................60
8.9.7 Manufacturer Device Name (1008
h
)......................................61
8.9.8 Manufacturer Hardware Version (1009
h
) ..................................62
8.9.9 Manufacturer Software Version (100A
h
) ..................................62
8.9.10 Guard Time (100C
h
) und Life Time Factor (100D
h
) ........................63
8.9.11 Node Guarding Identifier (100E
h
).......................................64
8.9.12 Store Parameters (1010
h
) .............................................65
8.9.13 Restore Default Parameters (1011
h
) .....................................67
8.9.14 COB_ID Emergency Message (1014
h
)...................................69
8.9.15 Inhibit Time EMCY (1015
h
)...........................................70
8.9.16 Consumer Heartbeat Time (1016
h
)......................................71
8.9.17 Producer Heartbeat Time (1017
h
).......................................73
8.9.18 Identity Object (1018
h
) ...............................................74
8.9.19 Synchronous Counter Overflow Value (1019
h
) ............................76
8.9.20 Verify Configuration (1020
h
) ..........................................77
8.9.21 Error Behaviour Object (1029
h
) ........................................78
8.9.22 NMT Startup (1F80
h
) ................................................79

CAN-CBX_Pt100 Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 7 of 120
8.9.23 Self Starting Nodes Timing Parameters (1F91
h
) ...........................80
8.9.24 Object Transmit PDO Communication Parameter 1800
h
- 1803
h
..............81
8.9.25 Transmit PDO Mapping Parameter 1A00
h
- 1A03
h
.........................82
8.10DeviceProfileArea.......................................................83
8.10.1 Overview of the Implemented Objects 6110
h
...9135
h
.......................83
8.10.2 Relationship Between the Implemented Analog Input Objects . . . . . . . . . . . . . . . . 84
8.10.3 AI Sensor Type (6110
h
) ..............................................85
8.10.4 AI Autocalibration (6111
h
) . 86
8.10.5 AI Operating Mode (6112
h
) ...........................................87
8.10.6 AI ADC Sampling Rate (6114
h
)........................................88
8.10.7 AI Physical Unit (6131
h
)..............................................89
8.10.8 AI Decimal Digits PV (6132
h
) .........................................91
8.10.9 AI Status (6150
h
) ...................................................92
8.10.10 Analog Input Field Value (9100
h
)......................................93
8.10.11 AI Interrupt Delta Input FV (9103
h
) ....................................94
8.10.12 Analog Input Process Value (9130
h
)....................................95
8.10.13 AI Interrupt Delta Input PV (9133
h
) ....................................96
8.10.14 AI Interrupt Lower Limit PV (9134
h
)...................................97
8.10.15 AI Interrupt Upper Limit PV (9135
h
) ...................................98
8.11 Manufacturer Specific Profile Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
8.11.1 Overview of Manufacturer Specifc Objects 2400
h
... 2510
h
...................99
8.11.2 ADC_PGA (2400
h
).................................................100
8.11.3 Channel Enabled (2401
h
) ............................................101
8.11.4 Accu N (2402
h
)....................................................102
8.11.5 Average N (2403
h
) .................................................103
8.11.6 Current Source Value (2410
h
).........................................104
8.11.7 Local Temperature at PCB (2420
h
).....................................105
8.11.8 Local Temperature at the Last Calibration (2421
h
) ........................106
8.11.9 Calibration Delta Temperature (2422
h
) .................................107
8.11.10CalibrationData ..................................................108
8.11.10.1 Calibration and Process/Field-Value Calculation . . . . . . . . . . . . . . . . . 108
8.11.10.2 Reference Temperature at Calibration (2500
h
, 2501
h
) ..............111
8.11.10.3 Gain Correction at I
LOW
and I
HIGH
(2502
h
, 2503
h
) ..................112
8.11.10.4 Gain Correction PGA=2/3/4 (2503
h
- 2506
h
).....................113
8.11.10.5 Offset (2510
h
).............................................114
8.11.10.6 Temperature Coefficient at I
LOW
and I
HIGH
(2511
h
, 2512
h
) ...........115
8.12 Firmware Management via DS 302-Objects (1F50
h
...1F52
h
) ......................116
8.12.1 Download Control via Object 1F51
h
...................................117
8.12.2 Verify Application Software (1F52
h
) ...................................117
9. References .................................................................118
10. Glossary .................................................................118
11. EU-Declaration of Conformity ...............................................119
12. Order Information .........................................................120

Overview
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 8 of 120
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1. Overview
1.1 Description of the Module
Fig. 1: Block circuit diagram of the CAN-CBX_Pt100 module
TheCAN-CBX_Pt100 moduleisaCAN-CBXmoduledesignedfortheconnectionof fourtemperature
sensors. Simple electric resistance measurement can also be performed.
Pt-andNi-resistancesensorsaresupported.Thesensor resistors can be connectedin two- orfour-wire
configuration.
The temperature sensors can be connected via four 5-pin Mini-Combicon connectors.
Linearisation according to NIST is achieved by the on board microcontroller.
The conversion of the four temperature sensor inputs is realized by four independent
cd
-converters.
The resolution achieved depends of the sample rate and the measuring current.
The CAN-CBX_Pt100 module is equipped with a MB90F497 microcontroller, that works with an
integrated SRAM. The firmware is held in the flash. The parameters are saved in a serial EEPROM.
The CAN interface is designed accordingto ISO11898-2 high-speed layer with electrical isolation and
supports bit rates up to 1 Mbit/s. The CANopen-node number and the CAN-bit rate can be easily set
via coding switches.
The CAN-CBX_Pt100 features the possibility to connect the power supply and the CAN bus signals
viathe InRailBusconnector(TBUS-connector)integratedinthemountingrail. Individualmodulescan
then be removed without interrupting the bus signals.
The module comes with CANopen® firmware according to CiA® 301 and supports the CiA DS 404
profile for measuring devices.

Quick Start
CAN-CBX_Pt100
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 9 of 120
2. Quick Start
1 Connect module (see connection diagram page 14)
2 Write “-1” (FFFF FFFF
h
) in object 9133
h
(sub-index 1...4)
(With every new A/D-conversion a TPDO with the measured value is sent.)
3 Send NMT-Start command to module
The PDOs are sent on
0180
h
+ Module number
0280
h
+ Module number
0380
h
+ Module number
0480
h
+ Module number
The Process-Value (PV) is sent in the data bytes 0...3.
The default unit of the PV is mOhm.
E.g.: 1234567 equates to 1234.567 Ohm

Technical Data
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 10 of 120
3. Technical Data
3.1 General technical Data
Power supply voltage nominal voltage: 24 V/DC input voltage range: 24 V ±20%
current consumption (24 V, 20
e
C): typical: ca. 120 mA
Connectors
24V (4-pin line connector with spring-cage connection,
X100 ) - 24V-power supply voltage
InRailBus (5-pin TBUS-connector, X101) - CAN interface and power
supply voltage via InRailBus
Pt1 (5-pin line connector with spring-cage connection, X500A)
- Temperature sensor input 1
Pt2 (5-pin line connector with spring-cage connection, X500B)
- Temperature sensor input 2
Pt3 (5-pin line connector with spring-cage connection, X800A)
- Temperature sensor input 3
Pt4 (5-pin line connector with spring-cage connection, X800B)
- Temperature sensor input 4
CAN (5-pin line connector with spring-cage connection, X400) -
CAN interface
Only for test and programming purposes (internal):
X200 (6-pin SMD socket strip)- the connector is placed inside the
case
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: 22.5 mm, height: 99 mm, depth: 114,5 mm (including mounting rail fitting and connector projection, without
mating plug)
Weight approx. 125 g
Table 1: General technical data

Technical Data
CAN-CBX_Pt100
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 11 of 120
3.2 Microcontroller
Microcontroller 16 bit
f
C MB90F497
RAM 2 Kbyte integrated
Flash 64 Kbyte integrated
EEPROM minimum 256 byte
Table 2: Microcontroller
3.3 CAN Interface
Number 1
Connection 5-pin line connector with spring-cage connection
or via InRailBus-connector (CAN-CBX-TBUS )
CAN Controller integrated in MB90F497, 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 3: Data of the CAN interface

Technical Data
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 12 of 120
3.4 Sensor Resistor Inputs
Number 4 independent
gh
A/D-converter channels
Sensor types - Temperature sensors: Pt100, Pt200, Pt500, Pt1000 and Pt5000, Ni100, Ni200, Ni500, Ni1000 and Ni5000
- electric resistance measurement
Measuring current 400
i
A or 40
i
A selectable
Connection technology 2-wire or 4-wire configuration
Measurement range Pt sensors: -250
j
C ... +850
j
C
Ni sensors: -200
j
C ... +400
j
C
Resistance: 0 ... +50 K
k
Conversion rate 2.5 Hz ... 1000 Hz
Resolution < 1
i
V at 25 Hz conversion rate
l
< 0.01
j
C
Measuring error
Depending on sensor type and measuring temperature
e.g.: at Pt100 sensors with 4-wire configuration:
measuring current = ca. 400
i
A: measuring error < 0.1
k
measuring current = ca. 40
i
A: measuring error < 0.5
k
The data of the characteristic curve are taken from the standard:
DIN EN 60751:2008
Electrical resolution
electrical resolution = f(measuring current, sample rate)
e.g.: measuring current = ca. 400
i
A
sample rate = 400 msec
resulting resolution = approx. 1 m
k
Electrical isolation electrical isolation of temperature sensor inputs against each other
and against power supply
Input filter adjustable via CiA DS 404 objects
Connector 4x 5-pin line connector with spring-cage connection
Table 4: Data of sensor resistor inputs
3.5 Software Support
The firmware of the module comes with CANopen® firmware according to CiA 301 [1] and supports
the CiA DS 404 [4] profile for measuring devices.
The CAN-CBX-Pt100 EDS-file can be downloaded from the esd website www.esd.eu.

Hardware Installation
CAN-CBX_Pt100
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 13 of 120
4. Hardware Installation
4.1 Connecting Diagram
4.1.1 Power Supply and CAN
Fig. 2: Connections of the CAN-CBX_Pt100 module
Note:
Please refer to page 33 for information on conductor connection and conductor cross
section. The connector pin assignments can be found on page 27 and following.

Hardware-Installation
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 14 of 120
4.1.2 Connect Temperature Sensor in 2-Wire Configuration (Example Pt2)
Fig. 3: Example temperature sensor connection in 2-wire configuration at Pt2
Note:
Please refer to page 33 for information on conductor connection and conductor cross
section. The connector pin assignments can be found on page 27 and following.

Hardware Installation
CAN-CBX_Pt100
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 15 of 120
4.1.3 Connect Temperature Sensor in 4-Wire Configuration (Example Pt2)
Fig. 4: Example temperature sensor connection in 4-wire configuration at Pt2
Note:
Please refer to page 33 for information on conductor connection and conductor cross
section. The connector pin assignments can be found on page 27 and following.

Hardware-Installation
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 16 of 120
4.2 LED Display
Fig. 5: Position of the LEDs in the front panel
The CAN-CBX-Pt100 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.
4.2.1 Indicator States
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

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CAN-CBX_Pt100
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 17 of 120
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.
4.2.2 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 20)
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
4.2.3 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 20)
Table 7: Indicator states of the CANopen Status-LED

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Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 18 of 120
4.2.4 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 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
Sensor error (emergency error code 5030
h
)
e.g.:
- sensor not connected
- sensor data faulty
Table 8: Indicator state of the Error-LED
4.2.5 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)
on power supply voltage is on and application software is
running
Table 9: Indicator state of the Power-LED

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CAN-CBX_Pt100
Manual • Doc.-No.: C.3032.21 / Rev. 1.1 Page 19 of 120
4.2.6 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 Invalid nodeID: The coding switches for the Node-ID are set to an invalid
ID-value, when switching on. The module will be stopped.
Table 10: Special Indicator States
4.2.7 Assignment of the LED Labelling to the Name in the Schematic Diagram
Labelling on the
CAN-CBX_Pt100 Name in the Schematic Diagram *
1)
E LED200A
S LED200B
M LED200C
V LED200D
*
1)
The schematic diagram is not part of this manual.

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Manual • Doc.-No.: C.3032.21 / Rev. 1.1 CAN-CBX_Pt100Page 20 of 120
4.3 Coding Switches
Fig. 6: 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.
4.3.1 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.