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Ethernet to RS485/RS232
E810-DTU
User Manual
This manual may change with the continuous improvement of the product. Please refer to the latest version of the instruction.
Chengdu Ebyte Electronic Technology Co., Ltd. reserves all rights of final interpretation and modification of this manual.
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Ethernet to 485/232 E810-DTU User Manual
Version
Date
Description
Issued by
1.00
2018/2/06
Initial version
huaa
Introduction
E810-DTU is a RS485/RS232 to Ethernet single serial port server. Realize data transparent transmission between RJ45
network port and RS485/RS232.
The module is equipped with a M0+ series of 32-bit processors, fast and efficient. It has an adaptive network speed (up
to 100M full duplex), and has four communication mechanisms: TCP Server, TCP Client, UDP Server, and UDP Client.
The E810-DTU is easy to operate. The user can directly configure the parameters of the module through the host
computer to easily implement data transmission.
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INTRODUCTION
1.
PRODUCT SPECIFICATIONS AND FEATURES
2.
INTRODUCTION OF HARDWARE PARAMETERS AND DESIGN
2.1. DESIGN INTRODUCTION
2.2. PIN DEFINITION
2.3. CONNECTION METHOD
3.
NETWORK BASIC FUNCTION INTRODUCTION
3.1 IP ADDRESS/SUBNET MASK/GATEWAY
3.1. DNS SERVER ADDRESS
4.
SOCKET CHARACTERISTICS
4.1. TCP SERVER CHARACTERISTICS
4.2. TCP CLIENT CHARACTERISTICS
4.3. UDP SERVER CHARACTERISTICS
4.4. UDP CLIENT CHARACTERISTICS
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5.
SPECIAL FUNCTION
5.1. SHORT CONNECTION
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5.2. REGISTRATION PACKET MECHANISM
5.3. HEARTBEAT MECHANISM
5.4. OVERTIME RESTART
5.5. TCP MULTI-CONNECTION FUNCTION
5.6. CLEARING CACHED DATA
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5.7. LINK AND DATA TRANSFER INSTRUCTIONS
6.
QUICK INSTRUCTIONS
6.1. PARAMETER SETTING INSTRUCTION
6.2. SOCKET INSTRUCTIONS
6.3. SPECIAL FUNCTION INSTRUCTIONS
7.
AT COMMAND
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7.1. AT COMMAND SUMMARY
7.2 AT COMMAND ERROR CODE
7.3 AT COMMAND SET
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7.2. AT COMMAND DETAILED INSTRUCTIONS
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8. IMPORTANT NOTES
9. ABOUT US
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1. Product specifications and features
No.
Specification
Description
1
Size
66 * 66 *21.6mm
2
Weight
79±1g
3
PCB process
2 layer，SMT, lead-free
4
Connector
RS485/RS232：1*5*3.81mm，Screwing
5
Supply voltage
8~28V DC，Note：Higher than 28V will cause permanent damage
6
UART standard
1200~256000 bps
7
UART communication
level
3.3V，communication level need to switch for 5V
8
Ethernet specification
RJ45，10/100Mbps
9
Network protocol
IP、 TCP/UDP、 ARP、 ICMP、 IPV4
10
IP Acquisition
Static IP、 DHCP
11
DNS
Available
12
User configuration
PC software , AT command configuration
13
Simple transparent
transmission
TCP Server 、TCP Client 、 UDP Server 、 UDP Client
14
TCP Server
connection
Max. 6 channel TCP connection
16
Software
RF Setting
17
Package mode
200 bytes per package
18
Operating current
77.0314mA@12V(RS485)，74.5635mA@12V(RS232)
19
Operating temperature
-40 ~ +85℃
20
Operating humidity
10% ~ 90%，relative humidity, no condensation
21
Storage temperature
-40 ~ +125℃
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2. Introduction of hardware parameters and design
2.1. Design Introduction
No.
Item
Description
1
VCC
Power supply, default power 8~28V (customizable standard 5V version)
2
GND
Ground electrode, connect to reference ground of power
3
GNDA
RS232 common, connecting the GND of other RS232 devices
4
B/TXD
Connecting the RS/RS232 output of other RS485 devices or connecting the RXD of other RS232 devices
5
A/RXD
Connecting RS-485 device's A-side/RS232 input, or connecting other RS232 devices' TXD
6
PWR
Power indicator
7
LED1
Remote connection indicator
8
LED2
Serial transmitting and receiving indicator
9
RJ45
RJ45 interface with network transformer
10
SWITCH
All configuration parameters of the module are restored to factory settings
11
VCC
DC power port, it is recommended to use standard 12V or 24V power supply
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2.2. Pin Definition
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2.3. Connection method
2.3.1. RS232 connection
2.3.2. RS485 connection
In RS485 communication, it should be noted that A and B are matched first. If it is abnormal, 120R resistors should be added between A and B
lines.
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3. Network basic function introduction
3.1 IP address/Subnet mask/Gateway
1. The IP address is the identity of the module in the LAN. It is unique in the LAN and cannot be duplicated with other devices on the LAN.
E810-DTU’s IP address of E810-DTU is static IP and DHCP.
(1) Static IP
Static IP requires the user to set manually，please note that the IP, subnet mask, and gateway should be written at the same time. Static IP is
suitable for scenarios that require IP and device statistics and have a one-to-one correspondence.
Advantage: Devices which cannot automatically assign IP addresses can be searched through the entire LAN.
Disadvantages: Different IP segments in different LANs cannot carry out normal TCP/UDP communication.
(2) DHCP
The main role of DHCP is to dynamically obtain IP address, Gateway address, DNS server address and other information from the gateway host,
eliminating the cumbersome steps of setting the IP address. It is suitable for scenarios where there is no requirement for IP and no need for
correspondence one by one of IP and modules.
Advantages: When connected routers and other devices with DHCP Server can communicate directly, and reduce the hassles of setting up IP
address gateways and subnet masks.
Disadvantages: When connected LANs without DHCP Server，such as computers, E810-DTU cannot work.
2. The subnet mask is mainly used to determine the LAN number and host number of the IP address, and indicate the number of subnets, and
judge whether the module is within the subnet。The subnet mask have to be set, what we normally use is C type subnet mask: 255.255.255.0,
LAN number is the first 24 numbers, host number is the last 8 numbers, and there are 255 subnets, If the module IP is within the 255 subnets, it
is considered to be in this subnet.
3. The gateway refers to the LAN number of the LAN where the current IP address of the module is located. If a device such as a router is
connected to an external network, the gateway is the router IP address，If the setting is incorrect, the external network cannot be accessed
properly，If you do not connect a device such as a router, you do not need to set it, by default.
4. Software setting
Figure 1 Parameter setting software
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3.1. DNS server address
4. Socket characteristics
Figure 2 Parameter setting interface
The DNS server is mainly used to convert the domain name into a network-recognizable IP address. DNS server address can be set, it can implement domain name
resolution when the local domain name server is not complete. Users can also set specific DNS server addresses as required, E810-DTU will submit a resolution request to
the configured DNS server when domain name resolution is required, more flexible and reliable.
In static IP mode, the default address of the DNS master server is 61.139.2.69, and the backup DNS server address is 192.168.4.1. In DHCP mode, the DNS server
address is automatically obtained. Domain name server address supported by the module can be set.
The Socket operating mode of E810-TTL-0 is divided into TCP Client, TCP Server, UDP Client, and UDP Server., it can be set with the host computer software, the
setting interface is as follows:
：
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4.1. TCP Server characteristics
Figure 3 Setting interface
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4.2. TCP Client characteristics
4.3. UDP Server characteristics
Figure 5 TCP Server
(1) In TCP Server mode, E810-DTU monitors the local port, receiving and establishing a connection for data communication when a connection request is sent. When
the E810-DTU serial port receives data, it will transmit data to all client devices which established a connection with the E810-DTU.
(2) It is usually used for communication with TCP clients in the LAN. Suitable for scenarios where there is no server in the LAN and there are many computers or
cellphones requesting data from the server. There is difference between connection and disconnection like TCP Client to ensure the reliable exchange of data.
(3) When the E810-DTU is a TCP Server, it can connect at most six clients, the local port number is a fixed value and cannot be set to 0
Figure 6 TCP Client
(1) TCP Client provides Client connectivity for TCP network services. Proactively initiates connection requests to the server and establishes connections for the
interaction of serial data and server data. According to the relevant TCP protocol, there is difference between connection and disconnection to ensure the reliable exchange of
data. It is normally used for data exchange between devices and servers and it is the most commonly used networking communication method.
(2) In TCP Client mode, when the E810-DTU attempts to connect to the server and the local port is 0, it initiates a connection with a random port each time.
(3) This mode supports short connection function。
(4) In the same LAN, if the E810-DTU is set to static IP, please keep the E810-DTU IP and gateway in the same network segment and set the gateway IP correctly,
otherwise it cannot communicate normally.
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4.4. UDP Client characteristics
5. Special function
5.1. Short connection
5.2. Registration packet mechanism
Figure 7 UDP Server
(1) UDP Server means that the source IP address is not verified on the basis of normal UDP. After each UDP packet is received, the target IP is changed to the data
source IP and port number, when the data is transmitted, it will be sent to the IP and port number which was the nearest communication one.
(2) This mode is normally used for multiple network devices which need to communicate with the module, and do not want to use TCP's data transmission due to fast
speed and frequency.
Figure 8 UDP Client
(1) UDP Client is a connectionless transmission protocol that provides a simple, unreliable information transfer service, without connection establishment and
disconnection, only IP and port are needed to send data. Generally used for data transmission scenarios where packet loss rate is not required, data packets are small and the
frequency is fast, and data is transmitted to a specified IP.
(2) In UDP Client mode, the E810-DTU will only communicate with the target IP's target port, if the data is not from this channel, it will not be received by the
E810-DTU.
(3) In UDP Client mode, if the target address is set to 255.255.255.255, it will broadcast within the whole UDP network segment, and it can also receive broadcast
data，E810-DTU supports broadcast within the supporting network segment, such as the mode of xxx.xxx.xxx.255.
The use of short connections is mainly to save server resources, and is generally applied to multipoint-to-point scenarios. Short connections is to ensure that existing
connections are useful connections and do not require additional controls for filtering.
The short connection function is applied in the TCP Client mode. After the short connection function is enabled, when sending data. If no data is received from the
serial port or network port within the setting 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 range is 2~255S.
In the network transparent transmission mode, users can make the module send registration packets to the server. The registration packet is for the server to identify the
data source device, or as a password to obtain server authorization.
E810-DTU has 4 registration packet mechanisms:
Sending MAC when connecting: The module will send the its own MAC address to the device when the connection is established.
Sending user-defined data when connecting: The module sends a user-defined data to the device when the connection is established
Each packet of data sending MAC: The module will add its MAC address in front of each frame of data sent.
Each packet of data sending user-defined data: The module will add its user-defined data in front of each frame of data sent.
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Figure 8 Sending MAC when connecting
Figure 9 Sending user-defined data when connecting
Figure 10 Each packet of data sending MAC
Figure 11 Each packet of data sending user-defined data
Sending a registration packet when establishing a connection are mainly used to connect to a server that requires registration. Data-carrying registration packets refers to
accessing registration packets at the head of data in sending data, which is mainly used for protocol transmission. The user-defined data packet defaults to hexadecimal data
(ASCII code optional) and the maximum packet length is 40 bytes.
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5.3. Heartbeat mechanism
5.4. Overtime restart
5.5. TCP multi-connection function
5.6. Clearing cached data
5.7. Link and data transfer instructions
In the network transparent transmission mode, users can make the module send heartbeat packets to the server. Heartbeat packets can be sent to the web server or sent
to the serial device, they cannot run at the same time.
Network heartbeat pocket: The heartbeat packet is sent to the network, in the heartbeat transmission cycle, the module sends heartbeat packet data to the network
server to maintain the connection with the network server. It only runs in the TCP Client and UDP Client modes。
Serial data packet: In the set heartbeat sending cycle, the module sends heartbeat packet data to the serial port, users can do corresponding processing after the serial
port receives the heartbeat data.
In an application in which a server sends a fixed inquiry command to a device, in order to reduce communication traffic, users can choose to send a heartbeat packet
(inquiry command) to the serial device side instead of sending a inquiry command from the server.
User-defined data packet defaults to hexadecimal data (ASCII code optional), E810-DTU module supports custom heartbeat packet content up to 40 bytes.
Overtime restart (no data restart) function is mainly used to ensure long-term stability of E810-DTU. When the network port cannot receive data for a long time, or if
the network does not receive data for a long time, the E810-DTU will restart after exceeding the set time, thus avoiding the influence of abnormal conditions on the
communication. The normal working time of this function is set to 60~65535S, default 300S. When the setting time is less than 60S, the default setting is zero, that is, the
function is turned off.
TCP multi-connection function is mainly to solve that in the TCP Sever mode, the user has multiple clients to connect E810-DTU and send and receive data at the same
time. When E810-DTU is used as a TCP Server, up to 6 connections can be established at the same time, the TCP Server sends data to multiple (up to 6) TCP clients on the
connection at the same time. When the number of established connections exceeds six, the connection established at the beginning will be actively disconnected, that is, the
old connection will be kicked off.
When the TCP Client connection is not established, the data received by the serial port will be placed in the buffer area, the E810-DTU serial port receive buffer is 400
bytes. When the connection is established, the serial port buffer data can be set whether to clear according to customer needs.
Link indicates the network connection status of the module. In TCP mode, when the network is not connected, the link goes out. When the connection is established,
the link is always on. Link indicator is on in UDP mode.
The other is the data transmission indication, which shows the data transmission status of the serial port of the module. When there is no data transmission on the serial
port, the data transmission indicator is extinguished. When there is data transmission on the serial port, the flashing indicates that the period is 60ms and the indicator lit
10ms.
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6. Quick instructions
6.1. Parameter setting instruction
6.2. Socket instructions
6.2.1. TCP Server instructions
Figure 12 Parameter setting instructions
(1) Connect two E810-DTU cable to the PC. Open the network configuration software and search for the device. The searched device will be displayed in the
device list. Double-click the device to be configured in the list, enter the setting interface, and set the module to TCP Server mode, Set the module IP address to
192.168.4.101, 192.168.4.102, set the module's local port to 8886, set the RF parameters. After the setting is complete, click the OK button, then restart the device and
search again to see if the parameter modification was successful.
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Figure 13 Searching devices
Figure 14 Network port parameter settings
Click Read Parameters on the RF Parameter Settings interface to obtain the module's current RF parameter settings, then you can configure the RF settings.
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Figure 15 RF Parameter configuration settings
(2) Open two network debugging assistants, set the network debugging assistant protocol type to TCP Client, the network debugging assistant's server IP address is set
to the module's IP address, the network debugging assistant's server port is set to the module's local port, click Connect.
(3) Enter a string of data in the sending area of network debugging assistant A, click Send, you will see that network assistant B has received the same data in the
sending area of the serial port. Input a string of data in the sending area of network debugging assistant A, network assistant B also received the data. It realizes bidirectional
transparent transmission.
Figure 16 Data transparent transmission
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6.2.2. TCP Client instructions
(1) Connect two E810-DTU serial ports and network cables to PC, open the network configuration software and search for the device. The searched device will
display the device list. Double-click the device to be configured in the list and enter the setting interface. Set the module to TCP Client mode, set the target IP address to
192.168.3.100, set the target port of module A to 8887, the target port of module B to 8886, set the RF parameters, click the OK button after the setting is complete, and then
restart the device to search Check once to see if the parameter modification was successful.
Figure 17 Searching devices
Figure 18 Parameter settings
Click Read Parameters on the RF Parameter Settings interface to obtain the module's current RF parameter settings. Then you can configure the RF settings.
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Figure 19 RF Parameter configuration settings
(2) Open two network debugging assistants, set the network debugging assistant protocol type to TCP Client, the network debugging assistant's server IP address is set
to the module's IP address, the network debugging assistant's server port is set to the module's local port, click Connect.
(3) Enter a string of data in the sending area of network debugging assistant A, click Send, you will see that network assistant B has received the same data in the
sending area of the serial port. Input a string of data in the sending area of network debugging assistant A, network assistant B also received the data. It realizes bidirectional
transparent transmission.
Figure 20 Data transparent transmission
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6.2.3. UDP Server instructions
(1) Connect two E810-DTU serial ports and network cables to PC, open the network configuration software and search for the device. The searched device will
display the device list. Double-click the device to be configured in the list and enter the setting interface. Set the module to UDP Server mode, set the target IP address to
192.168.3.100, set the target port of module A to 8887, the target port of module B to 8886, set the RF parameters, click the OK button after the setting is complete, and then
restart the device to search Check once to see if the parameter modification was successful.
Figure 21 Searching devices
Figure 22 Parameter settings
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Click Read Parameters on the RF Parameter Settings interface to obtain the module's current RF parameter settings. Then you can configure the RF settings.
Figure 23 RF Parameter configuration settings
(2) Open two network debugging assistants, set the network debugging assistant protocol type to UDP Server, the network debugging assistant's server IP address is set
to the module's IP address, the network debugging assistant's server port is set to the module's local port, click Connect.
(3) Enter a string of data in the sending area of network debugging assistant A, click Send, you will see that network assistant B has received the same data in the
sending area of the serial port. Input a string of data in the sending area of network debugging assistant A, network assistant B also received the data. It realizes bidirectional
transparent transmission.
Figure 24 Data transparent transmission
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6.2.4. UDP Client Guidance
(1) Connect two E810-DTU serial ports and network cables to PC, open the network configuration software and search for the device. The searched device will
display the device list. Double-click the device to be configured in the list and enter the setting interface. Set the module to UDP Client mode, set the target IP address to
192.168.3.100, set the target port of module A to 8887, the target port of module B to 8886, set the RF parameters, click the OK button after the setting is complete, and then
restart the device to search Check once to see if the parameter modification was successful.
Figure 25 Searching devices
Figure 26 Parameter settings
Click Read Parameters on the RF Parameter Settings interface to obtain the module's current RF parameter settings. Then you can configure the RF settings.
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(2) Open two network debugging assistants, set the network debugging assistant protocol type to UDP Client, the network debugging assistant's server IP address is set
to the module's IP address, the network debugging assistant's server port is set to the module's local port, click Connect.
(3) Enter a string of data in the sending area of network debugging assistant A, click Send, you will see that network assistant B has received the same data in the
sending area of the serial port. Input a string of data in the sending area of network debugging assistant A, network assistant B also received the data. It realizes bidirectional
transparent transmission.
Figure 28 Data transparent transmission
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6.3. Special function instructions
6.3.1. Short connection instructions
6.3.2. Registration packet instructions
The TCP short connection function is applied to TCP Client mode. After the short connection function is enabled, if no data is received at the serial port or network
port within the set time, the connection will be automatically disconnected. The short connection function is disabled by default, disconnection time can be set after the
function is enabled. The setting range is 2~255s, users can enter it directly:
Figure 29 Short connection setting
The E810-DTU has four registration packet mechanisms, which are sending MAC when connecting, sending user-defined data when connecting, sending MAC for
each packet of data, and sending user-defined data for each packet of data, user-defined data defaults to hexadecimal data (ascii optional).
The registration packet is closed by default, when you need to use it, you can open the network configuration software configuration. The user-defined data can be
directly input.
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6.3.3. Heartbeat packet instructions
Figure 30 Registration packet setting
Figure 31 User-defined data setting
Heartbeat packets are used to ensure the reliability of the connection. E810-DTU supports two heartbeat packets, which are network heartbeat packets and serial
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6.3.4. Overtime restart instructions
heartbeat packets. After setting the heartbeat packet type, you also need to set the heartbeat period and custom heartbeat packet data.
Figure 32 Heartbeat packet setting
The overtime restart is when the network port has not received data for a long time. After the module exceeds the set time, it restarts automatically to avoid
communication abnormalities The restart time can be set to 60~65535S, default 300s.
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6.3.5. Clearing cache instructions
Figure 32 Overtime restart setting
When TCP is not established, the data received by the serial port is in the buffer, and users can set to clear buffer according to the requirements, default closed.
Figure 33 Clearing cache setting
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7. AT Command
7.1. AT command summary
Error code
Instruction
-1
Invalid command format
-2
Invalid command
-3
Invalid operating code
-4
Invalid parameters
-5
Operation not allowed
No.
Command
Instruction
1
REBT
Restart the module
2
VER
Query version number
3
EXAT
Exit AT command mode
4
RESTORE
Restore factory settings
5
UART
Set/Query UART Parameters
6
UARTCLR
Set/Query whether the serial port cache is cleared before connection
7
MAC
Query module MAC address
8
USERMAC
Set custom MAC address
9
LINKSTA
Query TCP connection status
10
WAN
Set/Query WAN Parameters
11
LPORT
Set/Query local port number
12
SOCK
Set the query local port number
13
REGMOD
Set/Query Registration Package Mode
14
REGINFO
Set/Query Custom Registration Package Information
15
HEARTMOD
Set/Query heartbeat packet mode
16
HEARTINFO
Set/Query custom heartbeat packet information
17
HEARTM
Set/Query heartbeat packet time
18
SHORTM
Set/query short connection time
19
TMORST
Set/Query timeout restart time
AT command means, a user instruction set command is transmitted by UART module in command mode, explained later in detail using the AT command format. When
switching on to the configuration mode after power-on, the module can be set via the UART.
Switching from transparent transmission mode to command mode:
The UART device sends “+++” to the module continuously, after the module receives “+++”, the module starts timeout after 3 seconds. If any AT command is received
within the timeout period, the module will successfully switch to the configuration mode. Before the mode was successfully switched, any UART data was transmitted
through the network.
Switching from command Mode to Transparent Transmission Mode
The serial device sends the command “AT+ EXAT” to the module. After receiving the instruction, the module returns “+OK” and switches to the transparent
transmission mode at the same time.
Instructions： <CR>： ASCII code 0x0d; <LF>： ASCII code 0x0a;
7.2 AT command error code
7.3 AT command set
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20
H
Help
7.2. AT command detailed instructions
7.2.1. AT+REBT
7.2.2. AT+VER
7.2.3. AT+EXAT
7.2.4. AT+RESTORE
7.2.5. AT+UART
Function：Restart the module
Format：Set
Send：AT+REBT<CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：No
<Note>：After this command is executed correctly, the module restarts and it will exit AT mode.
Function：Query version number
Format：Set
Send：AT+VER<CR>
Return：<CR><LF>+OK=<ver><CR><LF>
Parameter：ver Module firmware version
Function：Exit AT command mode, Enter transparent transmission mode
Format：Set
Send：AT+EXAT<CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：No
<Note>：After the command is executed correctly, the module switches from command mode to transparent mode.
Function：Restore factory settings
Format：Set
Send：AT+RESTORE<CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：No
。
Function：Set/Query UART Parameters
Format：Query
Send：AT+UART<CR>
Return：<CR><LF>+OK=< baudrate,parity ><CR><LF>
Set
Send：AT+UART=< baudrate,parity><CR><LF>
Return：<CR><LF>+OK<CR><LF>
Parameter
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7.2.6. AT+UARTCLR
7.2.7. AT+MAC
7.2.8. AT+USERMAC
7.2.9. AT+LINKSTA
Baudrate 1200~921600bps.
Parity
NONE No parity。
EVEN Even parity。
ODD Odd parity。
Example： AT+UART=115200,NONE<CR>
Default： UART=115200,NONE
Function： Set/Query whether the serial port cache is cleared before connection
Format： Query
Send：AT+ UARTCLR <CR>
Return：<CR><LF>+OK=< sta ><CR><LF>
Set
Send：AT+ UARTCLR =< sta ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter： sta status
ON Clear the UART cache before connecting.
OFF Do not clear the UART cache before connecting.
Example： AT+UARTCLR=OFF<CR>
Default： UARTCLR=OFF
Function： Query module MAC address
Format： Query
Send：AT+MAC<CR>
Return：<CR><LF>+OK=<mac><CR><LF>
Parameter： MAC address of the mac module (eg D8B04CD39463)
Function： Set custom MAC address
Format： Set
Send：AT+ USERMAC =< MAC ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter： MAC address of the mac modul, The first byte must be an even number, for example D8B04CD39463.
Example： AT+USERMAC=D8B04CD39463<CR>
Function： Query TCP connection status.
Format： Query
Send：AT+ LINKSTA<CR>
Return：<CR><LF>+OK=< sta ><CR><LF>
Parameter：
Sta Whether to establish a TCP connection,
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7.2.10. AT+WAN
7.2.11. AT+LPORT
7.2.12. AT+SOCK
Connect / Disconnect
Connect TCP connected
Disconnect TCP not connected。
Function： Set/Query WAN Parameters（DHCP/STATIC）。
Format： Query
Send：AT+WAN<CR>
Return：<CR><LF>+OK=< mode,address,mask,gateway,dns,alternate dns><CR><LF>
Set
Send：AT+WAN=< mode,address,mask,gateway,dns,alternate dns ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter： mode Network IP mode (mode can only set static mode)
static Static IP/DHCP: Dynamic IP (address, mask, gateway parameter omitted)
address IP address
mask Subnet mask
gateway Gateway address
dns Domain Name Resolution Server Address
Alternate dns Alternate Domain Name Resolution Server Address
Example： AT+WAN=STATIC,192.168.4.101,255.255.255.0,192.168.4.1,61.139.2.69,192.168.4.1<CR>
Default： WAN=STATIC,192.168.4.101,255.255.255.0,192.168.4.1,61.139.2.69,192.168.4.1
Function： Set/Query local port number
Format： Query
Send：AT+LPORT<CR>
Return：<CR><LF>+OK=< sta ><CR><LF>
Set
Send：AT+LPORT =< sta ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：
sta 0 means random port, 1-65535 means socket local port.
Example： AT+SOCKPORT=8886<CR>
Default： SOCKPORT=8886
Function： Set/Query Network Protocol Parameter Format.
Format： Query
Send：AT+SOCK<CR>
Return：<CR><LF>+OK=< protocol,IP,port ><CR><LF>
Set
Send：AT+SOCK=< protocol,IP,port ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：
Protocol protocal type，TCPS / TCPC / UDPS / UDPC
TCPS is TCP server
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7.2.13. AT+REGMOD
7.2.14. AT+REGINFO
7.2.15. AT+HEARTMOD
TCPC is TCP client
UDPS is UDP server
UDPC is UDP client
IP When the module is set to "CLIENT", it refers to the IP address or domain name of the target server.
Port Port number: Local port number in Server mode, remote port number in Client mode, decimal number, less than 65535.
Example： AT+SOCK=TCPC,192.168.4.100,8887<CR>
Example： AT+SOCK=TCPC,www.cdebyte.com
Default： SOCK=TCPC,192.168.4.100,8887
Function： Set/Query Registration Package Mode
Format： Query
Send：AT+REGMOD<CR>
Return：<CR><LF>+OK=< status ><CR><LF>
Set
Send：AT+REGMOD =< status ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：
status
EMBMAC A 6-byte MAC is added as registered packet data before each packet sent to the server.
EMBCSTM Add custom registration packet data before each packet sent to the server.
OLMAC Only send a 6-byte MAC registration packet when connecting to the server for the first time.
OLCSTM Send a user-defined registration package when connecting to the server for the first time.
OFF Disable registration package mechanism.
Example： AT+ REGMOD =EMBMAC<CR>
Default： REGMOD =EMBMAC
Function： Set/Query Custom Registration Package Information
Format： Query
Send：AT+ REGINFO <CR>
Return：<CR><LF>+OK=< data ><CR><LF>
Set
Send：AT+ REGINFO =< data ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：
data ASCII code or hexadecimal data within 40 bytes。
例如： AT+ REGINFO = regist msg <CR>
Default： REGINFO=regist msg
Function： Set/Query heartbeat packet mode
Format： Query
Send：AT+ HEARTMOD<CR>
Return：<CR><LF>+OK=< mode ><CR><LF>
Set
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7.2.16. AT+HEARTINFO
7.2.17. AT+HEARTM
7.2.18. AT+SHORTM
Send：AT+ HEARTMOD=< mode ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：
mode
NET Network heartbeat packet.
UART UART heartbeat packet.
Example：AT+HEARTMOD=NET<CR>
Default：HEARTMOD=NET
Function： Set/Query custom heartbeat packet information
Format： Query
Send：AT+ HEARTINFO<CR>
Return：<CR><LF>+OK=< data ><CR><LF>
Set
Send：AT+ HEARTINFO=< data ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：
data Heartbeat packet data within 40 bytes of ASCII code or hexadecimal data.
Example： AT+ HEARTINFO = heart beat mag <CR>
Default： HEARTINFO=heart beat mag
Function： Set/Query heartbeat packet time.
Format： Query
Send：AT+ HEARTM <CR>
Return：<CR><LF>+OK=< time ><CR><LF>
Set
Send：AT+ HEARTM =< time ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter：
Time Heartbeat time, 0 off, range 1 to 65535S.
Example：AT+HEARTM=0
Default：HEARTM=0
Function： Set/query short connection time.
Format： Query
Send：AT+ SHORTM<CR>
Return：<CR><LF>+OK=< time ><CR><LF>
Set
Send：AT+ SHORTM=< time ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter： time Short connection time, 0 off, range 2-255S.
Example： AT+SHORTM=0<CR>
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7.2.19. AT+TMORST
7.2.20. AT+H
8. Important notes
All rights to interpret and modify this manual belong to Ebyte.
This manual will be updated based on the upgrade of firmware and hardware, please refer to the latest version.
Please refer to our website for new product information.
9. About us
Default： SHORTM=0
Function： Set/Query timeout restart time
Format： Query
Send：AT+ TMORST<CR>
Return：<CR><LF>+OK=< time ><CR><LF>
Set
Send：AT+ TMORST=< time ><CR>
Return：<CR><LF>+OK<CR><LF>
Parameter： time Timeout restart time, 0 off, range 60-65535S。
Example： AT+TMORST=0<CR>
Default： TMORST=300
Function： Help
Format： Query
Send：AT+ H <CR>
Return：<CR><LF>+OK=<sta><CR><LF>
Parameter： sta help information.
Technical support: support@cdebyte.com
Documents and RF Setting download link: www.cdebyte.com
—————————————————————————————————————————————————————————————————————
Tel：+86-28-61399028
Fax：028-64146160
Web：www.cdebyte.com/en/
Address：Innovation Center D347, 4# XI-XIN Road, Chengdu, Sichuan, China
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