Ebyte Ecan-w01 User manual

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

ECAN-W01

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

CONTENT

1. Product Introduction ...............................................................................................................................................3

1.1. Product introduction ...............................................................................................................................3

1.2. Functional features .................................................................................................................................3

2. Quick Get Start .......................................................................................................................................................4

3. Technical Indicators ............................................................................................................................................... 6

3.1. General specifications ............................................................................................................................6

3.2. Mechanical dimension drawing and pin definition ............................................................................... 7

4. Product Function Introduction ............................................................................................................................... 9

4.1. WiFi function ......................................................................................................................................... 9

4.1.1. AP mode .........................................................................................................................................9

4.1.2. STA mode .......................................................................................................................................9

4.2. Basic function ........................................................................................................................................ 9

4.2.1. SOCKET function ..........................................................................................................................9

4.2.2. TCP Client Function ...................................................................................................................... 9

4.2.3. TCP Server Functions .................................................................................................................. 10

4.2.4. UDP Client Functions .................................................................................................................. 10

4.2.5. UDP Server Features ....................................................................................................................10

4.2.6. CAN function ...............................................................................................................................11

4.2.7. CAN protocol conversion format ................................................................................................ 14

4.3. Features ................................................................................................................................................ 15

4.3.1. CAN filtering ............................................................................................................................... 15

4.3.2. Custom baud rate ......................................................................................................................... 16

4.3.3. Modify baud rate online ...............................................................................................................17

4.3.4. Heartbeat function ........................................................................................................................18

4.3.5. Registration package function ..................................................................................................... 18

4.3.6. Timeout restart function ...............................................................................................................19

4.4. Support DHCP and domain name resolution .......................................................................................19

4.4.1. DHCP ........................................................................................................................................... 19

4.4.2. DNS (Domain Name Resolution) ................................................................................................19

4.5. Disconnection reconnection .................................................................................................................20

4.6. Network interface upgrade ...................................................................................................................20

4.7. Restore factory settings ........................................................................................................................22

5. Important statements ............................................................................................................................................ 22

6. Revision History ...................................................................................................................................................23

7. About us ............................................................................................................................................................... 23

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

1. Product Introduction

1.1. Product introduction

ECAN-W01 is a high-performance industrial WIFI and CAN

bus data conversion equipment developed by EBT. It integrates

two CAN bus interfaces, one EtherNet interface and one WiFi

interface internally, which can easily complete the

interworking of CAN bus network and WiFi network.

ECAN-W01 has a built-in 120 ohm resistor, which can be

enabled by dialing; Support the operation within the

temperature range of - 40 ℃~85 ℃. It has a 10M Ethernet

interface. Customers can use the network cable to connect the

PC end and enter the configuration software to configure the

device parameters; The device WiFi network has two modes: AP and STA, which can quickly establish

or access the WiFi network; High protection of CAN interface, increased isolation; 2-channel CAN

port communication supports fixed common CAN baud rate and user-defined CAN baud rate, with the

highest baud rate of 1Mbps; At the same time, the device has multiple working modes such as TCP

Server, TCP Client, UDP, etc.

1.2. Functional features

Integrated 2-way CAN bus interface, using plug-in terminal wiring mode;

Support CAN2.0A and CAN2.0B frame formats and conform to ISO/DIS 11898 specification;

CAN bus communication baud rate between 5Kbps and 1Mbps can be programmed arbitrarily;

Dual CAN transceiver supports dual server, and each channel supports up to 4 links;

Integrated 2.4G WiFi interface, conforming to IEEE802.11a/b/g standard;

Support WiFi AP/STA mode, and access up to 5 STA devices in AP mode;

The CAN bus interface adopts electrical isolation, and the isolation module insulation voltage:

DC 2500V;

Maximum transmission data flow: 8000 frames/second; Maximum received data flow: 14000

frames/second;

Support registration package and heartbeat package;

Support DHCP and DNS;

Support offline restart/timeout restart;

Support upper computer configuration;

Support online modification of baud rate;

Including 120 ohm resistance;

Built in watchdog;

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

Network interface upgrading function;

Working temperature range: - 40 ℃~+85 ℃.

2. Quick Get Start

You need quasi ECAN-W01 * 1, power adapter * 1, network cable * 1, 2.4GWiFi antenna * 1, CAN

analyzer * 1;

1、 The factory default of the device is AP mode, the SSID is ECAN-W01-XX, and the password is

12345678. After the device is powered on, search the device WiFi through the PC, as shown in

the following figure:

Click Connect to connect to the device's WiFi

2、 Open the network debugging assistant of the computer, set it as TCP Client, set the remote

host IP to 192.168.4.101, and set the remote host port number to 8881.

3、 Connect CAN1 of ECAN-W01 to CAN resolver. When ECAN-W01 is connected to CAN bus, just connect

CAN_ H connected to CAN_ H，CAN_ L connected to CAN_ L is enough. (Note that the default CAN

baud rate is 100K)

4、 The network assistant can be used to realize the communication between devices and peripherals.

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

3. Technical Indicators

3.1. General specifications

Serial No

Project

Specifications

supply voltage

8V~28VDC, over 28V may burn out, 12V or 24V power supply

is recommended

Mesh port

specification

Standard RJ45, supporting 10Mbps

WiFi

specifications

IEEE802.11a/b/g standard

Network Protocol

IP、 TCP/UDP、WiFi

Simple transparent

transmission mode

TCP Server、TCP Client、UDP Server、UDP Client

TCP Server

Connection

A maximum of four TCP connections are supported in a

single channel

IP acquisition

method

Static IP, DHCP

Domain name

resolution

support

User Configuration

Upper computer configuration

working

temperature

-40~+85 ℃, industrial grade

Operating humidity

10%~90%, relative humidity, non condensing

Size

See dimension drawing

Average weight

120g

Storage

temperature

-40~+85 ℃, industrial grade

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

3.2. Mechanical dimension drawing and pin definition

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

Serial No

Identifica

tion name

Function description

ANT

WiFi antenna SMA interface

ETHERNET

Ethernet interface, standard RJ45 interface, connected

to PC

V+

Power positive interface, 5.08 phoenix head, (default

8-28V), 12V/24V recommended

V-

Power supply cathode interface 5.08 Phoenix head

Reload

Reload button, press and hold for more than 5s to restore

the factory

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

Dial RES1

CAN1 channel 120 ohm resistance dial switch

Dial RES2

CAN2 channel 120 ohm resistance dial switch

CAN1_ H

CAN1 channel bus high, 5.08 phoenix head

CAN1_ G

CAN1 channel bus ground, 5.08 Phoenix head

CAN1_ L

CAN1 channel bus low, 5.08 phoenix head

SYS

Power indicator (red), network access (red flashing)

CAN1/ERR

CAN1 data light (green), data error light (red)

CAN2/ERR

CAN2 data light (green), data error light (red)

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

4. Product Function Introduction

4.1. WiFi function

4.1.1. AP mode

Access Point is referred to as AP mode for short. It is similar to a router, allowing wireless

devices to connect and establishing TCP/IP based server, client, and UDP communications. In this

mode, four stations can be connected, and each TCP server supports up to four TCP sockets. By

default, the device is in AP mode. The SSID is ECAN-W01-XX-XX-XX-XX (followed by the device MAC

address). The default secret key is 12345678.

4.1.2. STA mode

Station mode is called STA for short. The device in this role does not provide connection,

but can only connect to Access Points or routers. The device in the Station role supports TCP

server, TCP client, and UDP; Under the TCP server, each channel supports a maximum of four sockets.

When the device switches from other working roles to STA mode, the device can enable DHCP to obtain

IP addresses, and automatically configure the gateway, subnet mask, and DNS domain name server.

It can also set a static IP address for networking.

4.2. Basic function

→ Ethernet part

4.2.1. SOCKET function

ECAN-W01 can establish two sockets, namely Socket A1 and Socket B1. Both of them support TCP

Client, TCP Server, UDP Client and UDP Server.

Two sockets run simultaneously. It can be connected to different networks at the same time

for data transmission.

When the device SOCKET is a TCP Server, each SOCKET can access up to four links at the same

time, and two SOCKET can have up to eight links.

4.2.2. TCP Client Function

(1) TCP Client provides client connection for TCP network service. Initiate a connection

request to the server and establish a connection to realize the interaction between CAN data and

server data. According to the relevant provisions of the TCP protocol, the TCP client has the

difference between connection and disconnection to ensure reliable data exchange. Usually used

for data interaction between devices and servers, it is the most commonly used networking

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

communication mode.

(2) When ECAN-W01 attempts to connect to the server in TCP Client mode and the local port

is 0, it initiates a connection with a random port each time.

(3) In the same LAN, if ECAN-W01 is set as a static IP, please keep the IP and gateway of

ECAN-W01 in the same network segment, and set the gateway IP correctly, otherwise normal

communication will not be possible.

4.2.3. TCP Server Functions

(1) TCP Server is the TCP server. In TCP Server mode, ECAN-W01 listens to the local port,

accepts and establishes a connection for data communication when a connection request is sent,

and sends the data to all client devices that establish a connection with ECAN-W01 at the same

time after receiving the data.

(2) It is usually used for communication with TCP clients in the LAN. It is suitable for

scenarios where there is no server in the LAN and multiple computers or mobile phones request

data from the server. Like TCP Client, it has the difference between connection and disconnection

to ensure reliable data exchange.

(3) When ECAN-W01 is used as a TCP server, up to 8 clients can be supported in a dual socket,

and up to 4 clients can be supported in a single socket. The local port number is a fixed value

and cannot be set to 0.

4.2.4. UDP Client Functions

(1) UDP Client is a connectionless transmission protocol that provides simple and unreliable

transaction oriented information transmission services. Without connection establishment and

disconnection, you only need to specify an IP and port to send data to the other party. It is

usually used in data transmission scenarios where there is no requirement for packet loss rate,

the data packet is small, the transmission frequency is fast, and the data is to be transmitted

to the specified IP.

(2) In UDP Client mode, ECAN-W01 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-W01.

(3) In UDP Client mode, if the target address is set to 255.255.255.255, the effect of UDP

full network segment broadcast can be achieved, and broadcast data can also be received. ECAN-W01

module supports broadcast within the network segment, such as the broadcast mode of xxx. xxx.

xxx. 255.

4.2.5. UDP Server Features

(1) UDP Server does not verify the source IP address on the basis of ordinary UDP. After receiving

a UDP packet, it changes the target IP address to the data source IP address and port number.

When sending data, it sends the IP address and port number of the latest communication.

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

(2) This mode is usually used in data transmission scenarios where multiple network devices

need to communicate with modules and do not want to use TCP due to high speed and frequency.

Note: UDP Server cannot actively send data. Only after receiving the data can it send the

data to the IP and port that has recently conducted data interaction.

→ CAN part

4.2.6. CAN function

category

name

default

explain

CAN

configurat

ion

Standard

frame upper

limit

7FF（HEX）

The upper limit and lower limit of the

received standard frame ID set by the user

jointly determine the standard frame ID range

to be received.

Lower limit of

standard

frame

000（HEX）

Extended

frame upper

limit

1FFFFFFF

（HEX）

The upper limit and lower limit of the received

extended frame ID set by the user jointly

determine the range of extended frame IDs to

be received.

Lower limit of

extended

frame

000000000

（HEX）

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

CAN transmit

buffer

Number

(1024

frames)

Not

configurable

Because the speed of Ethernet is much higher

than that of CAN transmission, if the amount

of data received by Ethernet is too large, CAN

needs to buffer transmission, which can

ensure no frame loss, but such a large buffer

may lead to poor real-time performance, that

is, the data currently sent by Ethernet can

only be sent from the CAN interface after a

certain time. In this case, the customer needs

to control the sending speed of Ethernet to

match the sending speed of CAN port.

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

4.2.7. CAN protocol conversion format

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

4.3. Features

4.3.1. CAN filtering

CAN filtering is divided into software filtering and hardware filtering.

4.3.1.1. Software filtering

The upper limit value and lower limit value of received extended frame ID set jointly determine the range of

extended frame ID to be received; A total of three sets of ID filtering can be set.

4.3.1.2. Hardware filtering

There are as many as 28 filter groups (14 for each channel) in the module. By setting filter

groups, each CAN node can receive messages that conform to the filter rules. Messages that do

not conform to the filter rules are discarded by hardware without software intervention. Each

filter bank consists of two 32-bit registers CAN_ FxR0 and CAN_ FxR1 composition. The bit width

of the filter group can be configured as one 32-bit filter or two 16 bit filters. Each filter

group can be configured as masked bit or identifier list mode, and each filter group can be enabled

or disabled.

In the masked bit mode, the two registers are respectively the identifier register and the

masked register, which need to be used together. Each bit of the identifier register indicates

that the expected value of the corresponding bit is explicit or implicit, and each bit of the

masked register indicates whether the expected value of the corresponding identifier register

bit needs to be consistent.

32-bit shielded bit mode

Identifier

CAN_

FxR1[31:24]

CAN_ FxR1[23:16]

CAN_

FxR1[15:8]

CAN_ FxR1[7:0]

Masked bit

CAN_

FxR2[31:24]

CAN_ FxR2[23:16]

CAN_

FxR2[15:8]

CAN_ FxR2[7:0]

mapping

STID[10:3]

STID[2:0]

EXID[17:13]

EXID[12:5]

EXID[4:0]

IDE

RTR

In identifier list mode, both registers are used as identifier registers, and each bit of the

received message identifier must be consistent with one of the registers to pass the filtering.

32 bit identifier list

Identifier

CAN_

FxR1[31:24]

CAN_ FxR1[23:16]

CAN_

FxR1[15:8]

CAN_ FxR1[7:0]

Masked bit

CAN_

FxR2[31:24]

CAN_ FxR2[23:16]

CAN_

FxR2[15:8]

CAN_ FxR2[7:0]

mapping

STID[10:3]

STID[2:0]

EXID[17:13]

EXID[12:5]

EXID[4:0]

IDE

RTR

In the 16 bit mode, the register group is divided into four registers. The mask bit mode of

each filter group in the mask bit mode can have two filters. Each filter contains a 16 bit identifier

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

identifier registers.

16 bit shielded bit mode

Identifier register n

CAN_ FxR1[15:8]

CAN_ FxR1[7:0]

Mask bit register n

CAN_ FxR1[31:24]

CAN_ FxR1[23:16]

Identifier register n+1

CAN_ FxR2[15:8]

CAN_ FxR2[7:0]

Mask bit register n+1

CAN_ FxR2[31:24]

CAN_ FxR2[23:16]

mapping

STID[10:3]

STID[2:0]

RTR

IDE

EXID[17:15]

16 bit identifier list mode

Identifier register n

CAN_ FxR1[15:8]

CAN_ FxR1[7:0]

Mask bit register n

CAN_ FxR1[31:24]

CAN_ FxR1[23:16]

Identifier register n+1

CAN_ FxR2[15:8]

CAN_ FxR2[7:0]

Mask bit register n+1

CAN_ FxR2[31:24]

CAN_ FxR2[23:16]

mapping

STID[10:3]

STID[2:0]

RTR

IDE

EXID[17:15]

When a message can be filtered by multiple filters, the filter number stored in the receiving

mailbox determines which filter number to store according to the filter priority rules. The filter

priority rules are as follows:

● All 32-bit filters have higher priority than 16 bit filters

● For filters of the same width, the filter priority of identifier list is higher than that

of shielded bit mode

● Filters with the same width and mode have higher priority if they are numbered smaller

4.3.2. Custom baud rate

The user can set the user-defined baud rate through the upper computer, select time period

1, time period 2, and pre division coefficient, and calculate the baud rate according to the

calculation table provided.

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

4.3.3. Modify baud rate online

The device supports online adjustment of the baud rate through the Ethernet port in the TCP Server

mode without entering the configuration software.

The command format is as follows

Instructions

CAN baud rate

3F 00 FF 00 00 00 00 FF 00 00 00 00

1000K

3F 01 FF 00 00 00 00 FF 00 00 00 00

800K

3F 02 FF 00 00 00 00 FF 00 00 00 00

500K

3F 03 FF 00 00 00 00 FF 00 00 00 00

250K

3F 04 FF 00 00 00 00 FF 00 00 00 00

125K

3F 05 FF 00 00 00 00 FF 00 00 00 00

100K

3F 06 FF 00 00 00 00 FF 00 00 00 00

50K

3F 07 FF 00 00 00 00 FF 00 00 00 00

20K

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

3F 08 FF 00 00 00 00 FF 00 00 00 00

10K

3F 09 FF 00 00 00 00 FF 00 00 00 00

4.3.4. Heartbeat function

In the network transparent transmission mode, users can choose to let ECAN-W01 send heartbeat

packets. The heartbeat packet can be sent to the network server. The main purpose of sending to

the network side is to maintain the connection with the server. It only takes effect in TCP Client

and UDP Client modes. ECAN-W01 module supports customized heartbeat packet with a maximum length

of 128 bytes. Support custom heartbeat package.

4.3.5. Registration package function

In the network transparent transmission mode, the user can choose to let the DTU send the

registration package to the server. The registration package is used to enable the server to

identify the data source device, or as a password to obtain server function authorization. The

registration packet can be sent when the DTU establishes a connection with the server, or a packet

of registration packet data can be sent before each packet. The data of the registration package

can be MAC address or user-defined registration data, of which the longest setting content of

the user-defined registration package is 128 bytes. Support user-defined registration package;

Establishing a connection and sending a registration package is mainly used to connect the

server to be registered.

The registration charter system is only applicable to TCP Client and UDP Client, and is invalid

under TCP Server and UDP Server.

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

4.3.6. Timeout restart function

The timeout restart (no data restart) function is mainly used to ensure the long-term stable

operation of ECAN-W01. When the link has not received and sent data for a long time, ECAN-W01

will restart after exceeding the set time, so as to avoid the impact of abnormal conditions on

communication. The timeout restart time can be set through the upper computer. The normal working

time of this function is set as 60~65535S, and the default value is 300S. 0 is off.

4.4. Support DHCP and domain name resolution

4.4.1. DHCP

The device can automatically obtain the IP address through the router, and automatically

configure the gateway, subnet mask and DNS server. It does not support modifying the subnet mask

and DNS server.

4.4.2. DNS (Domain Name Resolution)

When the user enters the domain name, it will automatically query the DNS server, and the

DNS server retrieves the database to obtain the corresponding IP address. In the static IP mode,

the user can customize the server for domain name resolution, which is used to resolve private

domain name server data. In the dynamic IP mode, the device automatically follows the domain name

resolution server configured by the routing device. The user only needs to modify the DNS server

of the routing device, and does not need to configure this device.

Chengdu Ebyte Electronic Technology Co., Ltd ECAN-W01 User Manual

4.5. Disconnection reconnection

Disconnection reconnection: the device requests connection periodically after disconnection

to ensure that the connection can be restored in case of accidental disconnection (note that the

device is not restarted);

4.6. Network interface 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

Step 2: Select Device Upgrade Assistant and click Search Device

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