Ebyte ECAN-E01S User manual

Chengdu Ebyte Electronic Technology Co.,Ltd. ECAN-E01S User Manual
Copyright©2012–2022， Chengdu Ebyte Electronic Technology Co.,Ltd.
ECAN-E01S

Chengdu Ebyte Electronic Technology Co.,Ltd. ECAN-E01S User Manual
Copyright©2012–2022， Chengdu Ebyte Electronic Technology Co.,Ltd.
Catalog
1. Product Description ....................................................................................................................................................3
1.1. Product introduction .....................................................................................................................................3
1.2. Features ........................................................................................................................................................ 3
2. Quick start ................................................................................................................................................................ 4
3. Technical index .........................................................................................................................................................6
3.1. General Specifications ................................................................................................................................. 6
3.2. Mechanical dimension drawing and pin definition ..................................................................................... 7
4. Product function introduction .................................................................................................................................. 8
4.1. Basic function ...............................................................................................................................................8
4.1.1. SOCKET .............................................................................................................................................. 9
4.1.2. Relay enable ....................................................................................................................................... 10
4.1.3. CAN protocol conversion format .......................................................................................................11
4.1.4. CAN function ..................................................................................................................................... 12
4.2. Special feature ............................................................................................................................................ 13
4.2.1. Heartbeat Packet .................................................................................................................................13
4.2.2. Registration package .......................................................................................................................... 13
4.2.3. Short connection .................................................................................................................................14
4.2.4. Timeout restart ................................................................................................................................... 14
4.2.5. Clear cache ......................................................................................................................................... 15
4.3. Reset ........................................................................................................................................................... 18
5. Related products .....................................................................................................................................................18
6. Important Notice .....................................................................................................................................................19
7. Revise History ........................................................................................................................................................ 19
About us ........................................................................................................................................................................19

Chengdu Ebyte Electronic Technology Co.,Ltd. ECAN-E01S User Manual
Copyright©2012–2022， Chengdu Ebyte Electronic Technology Co.,Ltd.
1. Product Description
1.1. Product introduction
ECAN-E01S is a high-performance industrial-grade Ethernet and CAN-bus data conversion device developed
by Ebyte. It integrates 2 CAN-bus interfaces, 1 EtherNet interface, supports TCP/UDP protocol, and can easily
Complete the intercommunication between CAN-bus network and Ethernet network.
ECAN-E01S has a built-in 120 ohm resistor, which can be enabled by dialing a code; it supports working in
the temperature range of -40°C to 85°C. It has one 10M Ethernet interface; the maximum baud rate of 2 CAN ports
communication is 1Mbps, with TCP Server, TCP Client, UDP and other working modes, and software
configuration parameters can be configured through the host computer. .
1.2. Features
Integrate 2 CAN-bus interfaces and use plug-in terminal wiring mode;
Support CAN2.0A and CAN2.0B frame format, in line with ISO/DIS 11898 specification;
The baud rate of CAN-bus communication can be freely programmable between 5Kbps~1Mbps;
Dual-channel CAN transceiver, support dual-channel server, maximum support 14-channel connection
Maximum sending data flow: 8000 frames/second; maximum receiving data flow: 14000 frames/second
The time stamp accuracy of the received message at the CAN end can reach 1us;
Support registration package, heartbeat package, short connection function
Support DHCP, DNS;
Support disconnection restart/timeout restart;
Support clear cache function;
Support host computer configuration;
Contains 120 ohm resistance;
Built-in watchdog;
Ethernet port upgrade function;
Operating temperature range: -40℃~+85℃.

2. Quick start
You need to prepare ECAN-E01S*1 power adapter*1 network cable 1
After the device is powered on, connect the computer to the device through a network cable, set the computer IP
address to the same network segment as the device IP, and the default IP address of the device is 192.168.4.101; for
example, the computer IP address is 192.168.4.193.
Open the computer's network debugging assistant, set it to TCP Client, set the remote host IP to 192.168.4.101, and
set the remote host port number to 8881.
Connect the CAN1 of the ECAN-E01S to the CAN analyzer. When the ECAN-E01S is connected to the CAN
bus, you only need to connect CAN_H to CAN_H and CAN_L to CAN_L.

Device-to-peripheral communication is possible using the Network Assistant.

Chengdu Ebyte Electronic Technology Co.,Ltd. ECAN-E01S User Manual
Copyright©2012–2022， Chengdu Ebyte Electronic Technology Co.,Ltd.
3. Technical index
3.1. General Specifications
Serial
Number
Index
Specification
1
Voltage
8V~28VDC, more than 28V may burn, recommend 12V or 24V
power supply
2
Network port
specifications
Standard RJ45, support 10Mbps
3
Network protocol
IP、TCP/UDP、
4
Simple transparent
transmission
TCP Server、TCP Client、UDP Server、UDP Client
5
TCP Server
connection
Supports up to 14 TCP connections
6
How to get IP
Static IP, DHCP
7
DNS
Support
8
User configuration
Host computer configuration
10
Operating
temperature
-40 ~ +85℃, industrial grade
11
Working humidity
10% ~ 90%, relative humidity, non-condensing
12
Size
See dimension chart
13
Average weight
120g
14
Storage temperature
-40～+85℃, industrial grade

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3.2. Mechanical dimension drawing and pin definition

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Serial
Number
Identificatio
n name
Function Description
1
ETHERNET
Ethernet interface, standard RJ45 interface, connected with
equipment or PC
2
Reload
Reload button, long press for more than 5s to restore factory
3
V+
Power supply positive interface, 5.08 phoenix head, (default
8-28V), recommended 12V/24V
V-
Power supply negative interface 5.08 Phoenix head
4
SYS
Power indicator (red), access to the network (yellow flashing)
5
CAN1/ERR
CAN1 data light (green), data error light (red)
6
CAN2/ERR
CAN2 data light (green), data error light (red)
7
CAN2_H
CAN2 channel bus high, 5.08 phoenix head
CAN2_G
CAN2 channel bus ground, 5.08 phoenix head
CAN2_L
CAN2 channel bus low, 5.08 phoenix head
8
Dial RES1
CAN1 channel 120 ohm resistance DIP switch
Dial RES2
CAN2 channel 120 ohm resistance DIP switch
9
CAN1H
CAN1 channel bus high, 5.08 phoenix head
CAN1G
CAN1 channel bus ground, 5.08 phoenix head
CAN1L
CAN1 channel bus low, 5.08 phoenix head
4. Product function introduction
4.1. Basic function
→Ethernet part

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4.1.1. SOCKET
ECAN-E01S can establish two sockets, namely Socket A1 and Socket B1. Among them, both channels support all
types of TCP Client, TCP Server, UDP Client, and UDP Server.
Two Sockets run at the same time. It can be connected to different networks at the same time for data transmission.
TCP Client
(1) TCP Client provides client connections for TCP network services. Actively initiate a connection request to the
server and establish a connection for realizing the interaction between CAN data and server data. According to the
relevant provisions of the TCP protocol, the TCP Client is the difference between connection and disconnection, so
as to ensure the reliable exchange of data. It is usually used for data interaction between devices and servers, and is
the most commonly used network communication method.
(2) When ECAN-E01S tries to connect to the server in TCP Client mode and the local port is 0, it will initiate a
connection with a random port every time.
(3) ECAN-E01S supports short connection function.
(4) Under the same local area network, if ECAN-E01S is set to static IP, please keep the IP of ECAN-E01S and the
gateway in the same network segment, and set the gateway IP correctly, otherwise it will not be able to
communicate normally.
TCP Server
(1) TCP Server is the TCP server. In TCP Server mode, ECAN-E01S listens to the local port, accepts and
establishes a connection for data communication when a connection request is sent. client device.
(2) It is usually used for communication with TCP clients in the local area network. It is suitable for scenarios
where there is no server in the local area network and there are multiple computers or mobile phones requesting
data from the server. Like TCP Client, there is a difference between connection and disconnection to ensure reliable
exchange of data.
(3) When ECAN-E01S is used as TCP Server, up to two-way Socket supports 14-way Client, and the local port
number is a fixed value and cannot be set to 0.
UDP Client
(1) UDP Client is a connectionless transmission protocol that provides transaction-oriented simple and unreliable
information transmission services. There is no connection establishment and disconnection, and data can be sent to
the other party only by specifying IP and port. It is usually used in data transmission scenarios where there is no
requirement for the packet loss rate, the data packets are small and the transmission frequency is fast, and the data
is to be transmitted to the specified IP.
(2) In UDP Client mode, ECAN-E01S will only communicate with the target port of the target IP. If the data does
not come from this channel, the data will not be received by ECAN-E01S.
(3) In UDP Client mode, if the target address is set to 255.255.255.255, it can achieve the effect of UDP broadcast
on the entire network segment, and can also receive broadcast data. The ECAN-E01S module supports broadcast
within the network segment, such as xxx.xxx .xxx.255 broadcast method.

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UDP Server
(1) UDP Server means that the source IP address is not verified on the basis of ordinary UDP. After each UDP data
packet is received, the destination IP is changed to the data source IP and port number. When sending data, it is sent
to the most recent communication. That IP and port number.
(2) This mode is usually used in data transmission scenarios where multiple network devices need to communicate
with the module and do not want to use TCP due to the high speed and frequency.
Note: UDP Server cannot actively send data, only after receiving data, can it send data to the IP and port that have
recently interacted with data.
→CAN Part
4.1.2. Relay enable
The device has the function of two-way CAN mutual transmission, that is, the relay function. When the device is in
relay mode, the data received by CAN1 on its network will be sent to the network where CAN2 is located, and the
data received by CAN2 on its network will be sent to the network where CAN1 is located.
Note: When the baud rates of the two CAN networks are different, it should be noted that the high baud rate needs

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to control the network utilization (if it is too high, data will be lost).
4.1.3. CAN protocol conversion format

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4.1.4. CAN function
Category
Name
Defaults
Description
CAN baud rate
1000K
There are 10 options from 5K to 1000K. Users can also fill
in any baud rate value by themselves.
CAN working
mode
Normal
Normal: The CAN port can respond to the received CAN
frame normally;
Listen only: The CAN port works in the monitor mode and
does not respond;
The values that can be filled are: 1 to 39. When the CAN
Subcontracting
time interval
(ms)
1
The values that can be filled in are: 12 to 255. When the
CAN port does not receive a new data frame within the time
defined by the "packet time interval" (unit is ms), and the
number of sub-packet frames is not reached, the previous
All data frames received and not yet sent are encapsulated
into an Ethernet packet and sent to the network port.
empty
CANBuffer
Optional
empty
This option is only valid in TCP working mode. It
determines whether to clear the data in the CAN port Buffer
after the connection is established. If not, the data in the
Buffer will be sent after the connection is established. If
clear when TCP connection is selected, the saved CAN
buffer will be cleared when the TCP connection is
established.
Category
Name
Defaults
Description
Standard frame
cap
7FF（HEX）
The upper limit and lower limit of the received
standard frame ID set by the user together determine
the standard frame ID range to be received.
Standard frame
lower limit
000（HEX）
Extended frame
cap
1FFFFFFF
The upper limit value and lower limit value of the
received extended frame ID set by the user together
determine the range of the extended frame ID to be

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Extended frame
lower limit
000000000
CAN transmit
buffer number
(600 frames)
Not
configurable
Because the speed of Ethernet is much higher than the
transmission speed of CAN, if the amount of data
received by Ethernet is too large, CAN needs to buffer
transmission, which can ensure that no frames are lost,
but such a large buffer may lead to poor real-time
performance, that is, Ethernet The data currently sent
by the network needs to wait for a certain time to be
sent out from the CAN interface. In this case, the
client needs to control the transmission speed of the
Ethernet to match the transmission speed of the CAN
port.
4.2. Special feature
4.2.1. Heartbeat Packet
In network transparent transmission mode, users can choose to let ECAN-E01S send heartbeat packets.
Heartbeat packets can be sent to the network server. The main purpose of sending to the network is to maintain a
connection with the server, and it only takes effect in TCP Client and UDP Client modes. ECAN-E01S module
supports custom heartbeat packet content up to 128 bytes. Support custom heartbeat package.
4.2.2. Registration package
In the network transparent transmission mode, the user can choose to let the DTU send the registration packet to the
server. The registration package is used to allow the server to identify the data source device, or as a password to
obtain authorization for server functions. The registration packet can be sent when the DTU establishes a
connection with the server, or the registration packet data can be spliced into the front end of each data packet as a

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data packet. The data of the registration package can be MAC address or user-defined registration data, wherein the
setting content of the user-defined registration package can be up to 128 bytes. Support custom registration
package;
Establishing a connection and sending a registration package is mainly used to connect to a server that needs to be
registered.
Data carrying registration package: Send data to access the registration package at the front end of the data, which
is mainly used for protocol transmission.
The registration packet mechanism is only applicable to TCP Client and UDP Client, and is invalid under TCP
Server and UDP Server.
4.2.3. Short connection
The use of TCP short connections is mainly to save server resources, and is generally used in multi-point-to-point
scenarios. Using short connections ensures that all existing connections are useful connections, and no additional
control means are required for screening.
The TCP short connection function is used in the TCP Client mode. After the short connection function is enabled,
the information is sent. If there is no data received from the serial port or network port within the set time, the
connection will be automatically disconnected. The short connection function is turned off by default, and the
disconnection time can be set after the function is turned on. The setting range is 2~255S.
4.2.4. Timeout restart
The timeout restart (no data restart) function is mainly used to ensure the long-term stable operation of the
ECAN-E01S. When the network port cannot receive data for a long time, or the network has not received data for a
long time, the ECAN-E01S will restart after the set time is exceeded. , so as to avoid the abnormal situation
affecting the communication. The timeout restart time can be set by the host computer. The normal working time of
this function is set to 60~65535S, and the default value is 300S. 0 is off, when the setting is out of range, it will
return to the default value.

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4.2.5. Clear cache
When the TCP connection is not established, the data received by the DTU will be placed in the buffer area. The
maximum receiving buffer of ECAN-E01S is 3900 bytes. When the TCP connection is established, the network
cache data can be cleared according to customer requirements.
Support DHCP and domain name resolution
DHCP
The device can automatically obtain IP through the router, and automatically configure the subnet mask and DNS
server, and does not support modifying the subnet mask and DNS server.
DNS
Automatically follow the router to configure the DNS server to meet the needs of custom domain name resolution.
Reconnect after disconnection
Disconnection and reconnection: The device periodically requests connection after disconnection to ensure that the
connection can be reconnected in the event of an accidental disconnection (note that the device is not restarted);
Ethernet port upgrade
Firmware can be upgraded and maintained through the serial port upgrade tool provided by our company.
Step 1: Open the software, open the configuration host computer, and click the menu bar

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Step 2: Select Device Upgrade Assistant and click Search Device

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Step 3: After selecting the firmware, click Upgrade to upgrade

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4.3. Reset
The device has the button to restore the factory settings. To restore the hardware to the factory settings, you need to
press and hold the reload button for more than 5s.
5. Related products
Product model
product type
Product features
ECAN-E01
CAN to Ethernet
With electrical isolation
ECAN-401
CAN to485/232/422
With electrical isolation
ECAN-S01
CAN to 485/232/422
No electrical isolation
CAN-U01
CAN analyzer
With electrical isolation

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6. Important Notice
Ebyte reserves the right of final interpretation and modification of all contents in this manual.
Due to the continuous improvement of the hardware and software of the product, this manual may be changed
without prior notice, and the latest version of the manual shall prevail.
7. Revise History
Version
Revise Date
Revision Notes
Maintainer
1.0
2022-07-06
First edition
LM
1.1
2022-09-13
Content revision
XXN
About us
Technical support: [e-mail]
Documents and RF Setting download link: https://www.ru-ebyte.com
Thank you for using Ebyte products! Please contact us with any questions or suggestions: [e-mail]
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Phone: [phone]
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