ICP DAS USA ECAN-240-FD User manual

ECAN-240-FD (Modbus TCP to 2-port CAN FD Gateway) User Manual Version 1.0.0 Page：1
Copyright © 2022 ICP DAS Co., Ltd. All Rights Reserved E-mail: [e-mail]
User Manual
Version 1.0.0, July. 2022
ECAN-240-FD
(Modbus TCP to 2-port CAN FD Gateway)

ECAN-240-FD (Modbus TCP to 2-port CAN FD Gateway) User Manual Version 1.0.0 Page：2
Copyright © 2022 ICP DAS Co., Ltd. All Rights Reserved E-mail: [e-mail]
Table of Contents
1. INTRODUCTION ....................................................................................................... 5
1.1. FEATURES ..........................................................................................................................................6
1.2. APPLICAITONS ....................................................................................................................................6
1.3. WEB SERVER TECHNOLOGY ...................................................................................................................7
2. HARDWARE INFORMATION ..................................................................................... 8
2.1. SPECIFICATIONS ..................................................................................................................................8
2.2. APPEARANCE......................................................................................................................................9
2.3. DIMENSIONS ....................................................................................................................................12
2.4. TERMINAL RESISTOR NOTES FOR CAN INTERFACE....................................................................................13
3. GETTING STARTED FOR ECAN-240-FD .................................................................... 14
3.1. CONNECTING THE POWER SUPPLY AND THE HOST PC...............................................................................14
3.2. CONFIGURING THE NETWORK SETTINGS ................................................................................................16
3.3. CONFIGURING THE CAN PORT.............................................................................................................18
3.4. SELF-TEST .......................................................................................................................................20
4. WEB CONFIGURATION ........................................................................................... 23
4.1. LOGGING IN TO THE ECAN-240-FD WEB SERVER ..................................................................................23
4.2. HOME PAGE.....................................................................................................................................25
4.3. CAN PORT PAGE ..............................................................................................................................26
4.3.1. Port1/2 Settings ...................................................................................................................26
4.3.2. Specific CAN ID Settings .......................................................................................................29
4.4. NETWORK PAGE................................................................................................................................30
4.4.1. IP Address Settings...............................................................................................................30
4.4.1.1. Manual Configuration..................................................................................................32
4.4.1.2. Dynamic Configuration ................................................................................................33
4.4.2. General Settings...................................................................................................................34
4.4.3. Restore Factory Defaults......................................................................................................35
4.5. FILTER PAGE .....................................................................................................................................37
4.6. MONITOR PAGE ................................................................................................................................39
4.7. PASSWORD PAGE ..............................................................................................................................41
4.8. LOGOUT PAGE ..................................................................................................................................42
5. MODBUS INFORMATION ....................................................................................... 43

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5.1 MODBUS/CAN MAPPING TABLE .........................................................................................................43
5.1.1 Input Data Area ...................................................................................................................44
5.1.1.1 CAN/CAN FD Rx Message Format....................................................................................45
5.1.1.2 CAN Rx FIFO Address .......................................................................................................47
5.1.1.3 CAN Status Address .........................................................................................................48
5.1.1.4 CAN Rx Buffer Address.....................................................................................................50
5.1.1.5 Others ..............................................................................................................................51
5.1.2 Output Data Area.................................................................................................................52
5.1.2.1 CAN/CAN FD Tx Message Format ....................................................................................53
5.1.2.2 CAN Tx FIFO Address........................................................................................................55
5.1.2.3 Others ..............................................................................................................................56
6. TYPICAL APPLICATIONS.......................................................................................... 57
6.1. MODBUS GATEWAY ...........................................................................................................................57
APPENDIX A. TROUBLESHOOTING................................................................................ 58
A.1. HOW DO IRESTORE THE WEB PASSWORD FOR THE MODULE TO THE FACTORY DEFAULT PASSWORD?....................58
APPENDIX B. GLOSSARY ............................................................................................... 60
1. ARP (ADDRESS RESOLUTION PROTOCOL) ..................................................................................................60
2. RARP (REVERSE ADDRESS RESOLUTION PROTOCOL)....................................................................................60
3. CLIENTS AND SERVERS............................................................................................................................61
4. ETHERNET ...........................................................................................................................................61
5. FIRMWARE ..........................................................................................................................................61
6. ICMP (INTERNET CONTROL MESSAGE PROTOCOL) ......................................................................................61
7. INTERNET ............................................................................................................................................61
8. IP (INTERNET PROTOCOL)ADDRESS ..........................................................................................................62
9. SUBNET MASK......................................................................................................................................62
10. GATEWAY ........................................................................................................................................62
11. MAC (MEDIA ACCESS CONTROL)ADDRESS ...........................................................................................62
12. PACKET ...........................................................................................................................................62
13. PING ..............................................................................................................................................63
14. SOCKET ...........................................................................................................................................63
15. TCP (TRANSMISSION CONTROL PROTOCOL) ...........................................................................................63
16. TCP/IP ...........................................................................................................................................63
17. UDP (USER DATAGRAM PROTOCOL).....................................................................................................63
APPENDIX C. VALID DATA PHASE BIT RATE OF CAN FD.................................................. 64
APPENDIX D. REVISION HISTORY.................................................................................. 66

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Important Information
Warranty
All products manufactured by ICP DAS are under warranty regarding
defective materials for a period of one year, beginning from the date of
delivery to the original purchaser.
Warning
ICP DAS assumes no liability for any damage resulting from the use of this
product.ICP DAS reserves the right to change this manual at any time
without notice. The information furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is assumed by ICP DAS
for its use, not for any infringements of patents or other rights of third parties
resulting from its use.
Copyright
Copyright @ 2022 by ICP DAS Co., Ltd. All rights are reserved.
Trademark
Names are used for identification purpose only and may be registered
trademarks of their respective companies.
Contact us
If you encounter any problems while operating this device, feel free to contact us
via mail at: [e-mail].

ECAN-240-FD (Modbus TCP to 2-port CAN FD Gateway) User Manual Version 1.0.0 Page：5
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1. Introduction
The IoT (Internet of Things) has been a much discussed topic in recent years. Using the IoT
concept, it is easy to integrate the environment of heterogeneous network and let all of the things
into be digitized making life more convenient. In order to provide additional access to IoT
applications related to industry based on the CAN bus, ICPDAS has developed a new Ethernet
product, the ECAN-240-FD. The ECAN-240-FD module is a Modbus TCP to 2-port CAN FD
(CAN with Flexible Data-Rate) Gateway. As its functionality, that provides communications via
the Ethernet based on the Modbus TCP industrial protocol, meaning that the module can be
easily integrated with an industrial network. The ECAN-240-FD module includes two CAN bus
interfaces, meaning that more various CAN applications can be supported

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1.1. Features
Compatible with the ISO 11898-2 standard
Compatible with CAN specification 2.0A/B and FD
CAN FD support for ISO and Non-ISO (Bosch) standards switchable
CAN FD bit rates for data field from 100 kbps to 10000 kbps
CAN bit rates from 10 kbps to 1000 kbps
Built-in switchable 120 ohm terminal resistor for CAN Bus
Supports TCP server-mode operation
Supports UDP responder for device discovery (UDP Search)
Static IP or DHCP network configuration
Easy firmware update via the Ethernet (BOOTP, TFTP)
Tiny Web server for configuration (HTTP)
Contains a 32-bit MCU that efficiently handles network traffic
10/100 Base-TX Ethernet, RJ-45 x1 (Auto-negotiating, auto MDI/MDIX, LED Indicators)
RoHS compliant with no Halogen
1.2. Applicaitons
Control System
BuildingAutomation
FactoryAutomation
Distributed data acquisition

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1.3. Web Server Technology
Web server technology enables the ECAN-240-FD to be configured via a standard web browser
interface, e.g. Google Chrome, Internet Explorer, or Firefox, etc. This means that it is easy to
check the configuration of thet ECAN-240-FD via an Ethernet network without needing to install
any other software tools, thereby reducing the learning curve required for maintaining the device.

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2. Hardware Information
This chapter provides a detailed description of the front panel, the hardware specifications and
the dimensions for the ECAN-240-FD module.
2.1. Specifications
CAN Bus Interface
Channels
2
Connector
9-pin D-sub male x 2
Transmission Speed
CAN bit rates: 10 ~ 1000 kbps,
CAN FD bit rates for data field: 100 ~ 10000 kbps
Terminal Resistor
DIP switch for the 120 Ω terminal resistor
Isolation
3 kV VDC for DC to DC, 2500 Vrms for photo couple
Specification
ISO 11898-2, CAN 2.0 A/B and FD
Ethernet Interface
Ethernet
10/100 Base-TX, 8-pin RJ-45 x 1, (Auto-negotiating, Auto-MDI/MDIX,
LED indicator)
Protocol
Modbus TCP, HTTP, BOOTP, TFTP
LED Indicators
Status
1 x Power status, 3 x CAN1 status, 3 x CAN2 status
Power
Power Supply
Unregulated +10 ~ +30 VDC
Power Consumption
0.05A @ 24V
DC
Mechanical
Installation
DIN-Rail
Casing
Metal
Dimension (mm)
122.0 x 160.0 x 28.0 (W x L x H)
Environment
Operating Temperature
-25 °C ~ +75 °C
Storage Temperature
-30 °C ~ +80 °C
Relative Humidity
10 ~ 90% RH, Non-condensing

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2.2. Appearance
Front View 1. LED indicator
Once power is supplied to the ECAN-240-FD
module, the LED
indicator will illuminate. An overview of the LED functions is given
below:
LED Color Description
Power Red
When power on the ECAN-240-FD, this
LED is turned on.
ST1 Red
If the ECAN-240-FD detects the CAN
error-warning, error-passive and bus-off
status on the CAN1
bus, this LED flashes
once per 100 ms.
ST2 Red
If the ECAN-240-FD detects the CAN
error-warning, error-passive and bus-off
status on the CAN2
bus, this LED flashes
once per 100 ms.
TX1 Green
When the ECAN-240-FD transmits one
CAN/CAN FD message to CAN1
bus, this
LED flashes once.
RX1 Green
When the ECAN-240-FD receives one
CAN/CAN FD message from CAN1 bus,
this LED flashes once.
TX2 Green
When the ECAN-240-FD transmits one
CAN/CAN FD message to CAN2
bus, this
LED flashes once.
RX2 Green
When the ECAN-240-FD receives one
CAN/CAN FD message from CAN2 bus,
this LED flashes once.

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2. Ethernet RJ-45 Jack
The ECAN-240-FD module is equipped with an RJ-
45 jack that is
used as the 10/100 Base-
TX Ethernet port and features networking
capabilities. When an Ethernet link is detected and an Ethernet packet
is received, the Link/Act LED (Green
) indicator will be illuminated.
When Ethernet running at 100 Mbps, the 10/100M LED (Orange)
indicator will be illuminated.
3. 9-pin D-Sub male connector
Pin assignments of CAN Bus Connector
Pin Description
1 N/A
2 CAN Low
3 CAN Ground
4 N/A
5 N/A
6 CAN Ground
7 CAN High
8 N/A
9 N/A
4. CAN Bus Terminal Resistor
Enable/Disable 120Ω terminal resistor on CAN1/2 port.
ON Enable 120Ω terminal resistor
OFF Disable 120Ω terminal resistor
5. Rotary Switch (SW1/SW2)
SW2 SW1 Description
F F
When booting up, ECAN-240-FD will into
firmware upgrade mode.
If there is no update
action after 5 seconds
, the module will work with
factory default setting.
F E
When booting up, ECAN-240-FD will restore and
work with factory default setting.
Others User-defined

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6. +10 to +30 VDC Terminal Block
The ECAN-240-FD is equipped with a +10 VDC to +30 VDC 3-pin
terminal block that can be used to connect a DC power supply.

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2.3. Dimensions
The following diagrams provide the dimensions of the ECAN-240-FD module. All dimensions are
in millimeters.

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2.4. Terminal Resistor Notes for CAN Interface
In order to minimize the effects of reflection on the CAN Bus, the bus must be terminated using a
terminal resistor at each end. According to the specifications given in ISO 11898-2, each terminal
resistor should be 120Ω(or between 96Ω and 144Ω). The bus topology and the positions of these
terminal resistors are shown below.
The ECAN-240-FD module includes two CAN ports and terminal resistors are provided for each
CAN port. The terminal resistor can be enabled or disabled via the terminator DIP-switches as
illustrated in following figure.
As indicated in the figure, when the DIP-switch is in the OFF position, the terminal resistor
function is disabled. Similarly, when the DIP-switch is in the ON position, the terminal resistor
function is enabled.

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3. Getting Started for ECAN-240-FD
This chapter provides detailed information about how to use the ECAN-240-FD module. Before
using the module, Ethernet configuration and eSearch utility installation procedures must first be
fully completed. Follow the procedure described below:
3.1. Connecting the Power Supply and the Host PC
1. Ensure that the network settings on your PC are configured correctly.
2. Ensure that the Windows firewall or any Anti-Virus firewall software is correctly configured or
temporarily disable these functions; otherwise the “Search Servers” function in the eSearch
Utility may not work as required. You may need to contact your System Administrator for
more details of how to do this.
3. Check that the SW1/SW2 switch is in the “0/0” position

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4. Connect both thet ECAN-240-FD and the Host computer to the same sub-network or the
same Ethernet Switch, and then power on the ECAN-240-FD. Refer to following figure for
illustrations of how to do this.
5. Verify that the Power LED indicator is illuminated.

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3.2. Configuring the Network Settings
1. Downloaded the eSearch Utility and installed according to the
installation instructions.The eSearch Utility can be obtained from the
ICP DAS web site. The location of the install files on the download
addresse is shown below:
https://www.icpdas.com/tw/download/show.php?num=6710&nation=
TW&kind1=&model=&kw=esearch
Note: The version of the eSearch Utility have to v1.3.0 or later.
2. Open the eSearch Utility and then click the “Search Server” button to search for the
ECAN-240-FD module.
3. Once the search process is complete, double-click the name of the ECAN-240-FD module to
open the “Configure Server” dialog box.
4. Enter the network settings information, including the IP, Mask and Gateway addresses, and
then click “OK” button. The new settings for the ECAN-240-FD will take effect within 2
seconds. If you don’t know the correct network configuration information, contact your
Network Administrator to obtain the details.

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5. Wait 2 seconds and click “Search Server” button again to ensure the ECAN-240-FD is
working well with new configuration.
Factory Default Settings of ECAN-240-FD Module:
IP Address 192.168.255.1
Subnet Mask 255.255.0.0
Gateway 192.168.0.1

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3.3. Configuring the CAN Port
1. Open a web browser, such as Google Chrome, Internet Explorer, or Firefox, and enter the
URL for the ECNA-240-FD module in the address bar of the browser, or click the “Web”
button in the eSearch Utility.You can right click the IP address field and click the “Copy to
Clipboard” to copy the IP address.
2. When the login screen is displayed, enter the password (use the default password: admin) in
the login password field, and then click the “Submit” button to enter the configuration web
page.
Note: For the first time to use the ECAN-240-FD device, you may need to change the default
password to other value.
3. Click the “Port1” tab to display the Port1 Settings page.
4. Select the appropriate CAN Port and Filter Settings from the relevant drop down options.
Click “Update Settings” to save your settings.

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3.4. Self-Test
Writing a CAN message to CAN1 and reading a CAN message from CAN2 via Modbus Poll Tool.
1. Connect the CAN1 “CAN_H/CAN_L” pins with CAN2 port.
2. Download and install the “Modbus Poll” test program at below link.
https://www.modbustools.com/download.html
3. Double-click the Modbus Poll shortcut to open.
4. Select the “Read/Write Definition…” item from the “Setup”menu to open the “Read/Write
Definition” dialog box.
5. Configure the setting for writing a CAN/CAN FD message to “CAN1 Tx FIFO #1” address
(00000).
6. Configure the setting for reading a CAN/CAN FD message from “CAN2 Rx FIFO #1”
address (04096).
Note: Refer to section 5 for Modbus address definition of ECAN-240-FD.