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U.S. Converters USCDR404 User Manual

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USCDR404 User manual

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V1.0.1
USCDR404 User Manual
U.S. Converters LLC
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  • Page 1: Uscdr404 User Manual

    USCDR404 User manual www.usconverters.com V1.0.1 USCDR404 User Manual U.S. Converters LLC...

  • Page 2: Table Of Contents

    USCDR404 User manual www.usconverters.com Contents USCDR404 User Manual ................................. 1 1. Product Overview..................................8 1.1. Brief Introduction................................8 1.2. Specifications ................................. 8 2. Networking application ................................9 2.1. Wireless Networking Configuration ..........................10 2.2. Wireless networking application ..........................11 2.2.1. Wireless networking application(AP) ....................... 11 2.2.2.
  • Page 3 USCDR404 User manual www.usconverters.com 3.3.1. Parameters ................................ 32 3.3.2. UART Free framing ............................33 3.3.3. UART auto-framing mode ..........................34 3.4. Synchronous Band Rate (RFC2217) ..........................35 3.5. RFC2217 Protocol Description ............................. 35 3.6. USR-Link ..................................36 3.7. USR Cloud ..................................39 3.8.
  • Page 4 USCDR404 User manual www.usconverters.com 4.1.10. Device Management ............................62 4.2. AT command ................................63 4.2.1. Serial AT Command ............................63 4.2.2. Net AT command .............................. 65 4.3.3 Command Format .............................. 66 4.3.4 AT command ..............................68 4.3.4.1. AT+E ............................... 71 4.3.4.2.
  • Page 5 USCDR404 User manual www.usconverters.com 4.3.4.22. AT+TCPTO ............................81 4.3.4.23. AT+MAXSK ............................82 4.3.4.24. AT+TCPB ............................... 82 4.3.4.25. AT+TCPPTB ............................83 4.3.4.26. AT+TCPADDB ............................83 4.3.4.27. AT+TCPTOB ............................84 4.3.4.28. AT+TCPLKB ............................84 4.3.4.29. AT+EPHY .............................. 84 4.3.4.30. AT+FUDLX ............................85 4.3.4.31.
  • Page 6 USCDR404 User manual www.usconverters.com 4.3.4.49. AT+HTPURL ............................92 4.3.4.50. AT+HTPHEAD ............................92 4.3.4.51. AT+REGEN ............................92 4.3.4.52. AT+REGTCP ............................93 4.3.4.53. AT+WTPWR ............................93 4.3.4.54. AT+REGCLOUD ............................. 94 4.3.4.55. AT+REGUSR ............................94 4.3.4.56. AT+TCPDPEN ............................94 4.3.4.57. AT+HEARTEN............................95 4.3.4.58. AT+HEARTTP ............................95 4.3.4.59.
  • Page 7 USCDR404 User manual www.usconverters.com Features  Support 802.11b/g/n wireless standards.  Support usr-link.  Support route and bridge modes.  Support RS485 to Wifi/ Ethernet communication.  Rich indicator LED: Power, link, RXD, TXD.  Wide voltage DC 5~36V, support terminal power.

  • Page 8: Product Overview

    1. Product Overview 1.1. Brief Introduction USCDR404 supports bidirectional serial port to WIFI / Ethernet conversion. Enabling serial devices with a TCP / IP network interface, connecting to networks for data communication, extending the communication distance of serial devices, as below:...

  • Page 9: Networking Application

    TCP Web server ＋AT command configure User configure Custom application Support custom customize application software software Form 1 Parameters 2. Networking application USCDR404 supports wireless WIFI and wired Ethernet communication modes, flexible networking and network topology. U.S. Converters LLC...

  • Page 10: Wireless Networking Configuration

    2.1. Wireless Networking Configuration USCDR404 can be configured to be a STA or an AP device. It can be configured by AT commands or web page, as below example: (1) AT command setting: Set by AT + WMODE, it can be set to AP or STA.

  • Page 11: Wireless Networking Application

    USCDR404 User manual www.usconverters.com 2.2. Wireless networking application 2.2.1. Wireless networking application(AP) WIFI can do as a AP, other serial port device and PC as a STA can connect the WIFI, also it can connected to user device via RS485, as fellows: Diagram 3 AP mode The WIFI serial server works in AP mode.

  • Page 12: Sta Mode

    2.2.2. STA Mode USCDR404 do as STA and connect to other APs to form a wireless network, all STA take the AP as wireless networking centre, mutual communication between STAs is completed through AP forwarding, as below: Diagram 4 STA mode...
  • Page 13 USCDR404 User manual www.usconverters.com Diagram 5 AP+ STA mode WIFI serial server parameter settings are as follows: (1) Enable AP + STA function of WIFI serial server AT+FAPSTA=on (2) Parameters take effect after resetting the module AT+RELD (3) Set the WIFI serial server to STA mode, the WIFI serial server AP interface is still valid...

  • Page 14: Wireless Networking Applications (Ap,Sta)

    After clicking “Apply”,restart to take affect. 2.2.4. Wireless Networking Applications (AP,STA) USCDR404 can be configured to be a STA and a AP , in theory support 2 wireless interface, one STA and one AP, other STA will connected to the network via this AP.
  • Page 15 USCDR404 User manual www.usconverters.com Diagram 6 Wireless Networking Application WIFI serial server parameter settings are as follows: The WIFI serial server numbered 1 works in STA mode, and the numbered 2 works in AP mode: (1) For No. 1 WIFI serial server, set to STA AT+WMODE=STA (2) For No.

  • Page 16: Wired Networking

    USCDR404 User manual www.usconverters.com (4) Restart AT+Z 2.3. Wired Networking Related AT command: Item Description WMODE Setting/query WIFI operating mode(AP、STA) WSSSID Setting/query related AP SSID WSKEY Setting/query encryption under the WIFI STA mode WANN Setting/query net parameters of the STA...

  • Page 17: Wired Networking Application

    WIFI, serial port and Ethernet port. In terms of networking, the USCDR404 serial server network port can be set to LAN port and WAN port; at the same time, it supports bridge mode and routing mode to correspond to different specific applications.

  • Page 18: Wired Networking Applications (Ap+ Wan)

    USCDR404 works in AP mode, set the Ethernet interface to WAN, connected to the router that can search the internet, and enable the DHCP. Now USCDR404 works as a second grade router, PC and pad connect to the AP(USR-DR404) can can be online, the default AP is USR-DR404_xxxx, no encryption, 000000000000which can be setting by web page or AT command.
  • Page 19 USCDR404 User manual www.usconverters.com USR-W610 USR-DR404 100M Eth Internet WIFI IP：10.10.100.100 IP： IP：192.168.1.10 IP： GateWay： 10.10.100.254 GateWay： 192.168.1.1 10.10.100.254 192.168.1.1 Diagram 9 AP+WAN Application WIFI serial server parameter settings: (1) Enable Ethernet interface AT+FEPHY=on (2) Set the working mode of Ethernet to WAN...

  • Page 20: Wired Networking Applications (Router)

    USCDR404 User manual www.usconverters.com 2.4.3. Wired Networking Applications (Router) DR404 works as a STA, in router mode(software is N-Ver). Connected to the AP and obtained an IP address from the AP such as 192.168.1.101 in the below diagram. DR404 forms a subnet(default 10.10.100.254) which distributes the IP address to the devices that connect to its Ethernet interface.

  • Page 21: Wired Networking Applications (Bridge)

    USCDR404 User manual www.usconverters.com Set the LAN parameters of the serial server to ensure that the LAN IP address cannot be on the same network segment as the WAN IP address obtained by the serial server from the AP. Since this example is not on a network segment, can keep the default: AT+LANN=10.10.100.254,255.255.255.0(Optional)
  • Page 22 USCDR404 User manual www.usconverters.com USR-W610 USR-DR404 STA Z-Ver WIFI RJ45 WIFI IP： IP：192.168.1.100 IP：192.168.1.101 IP：192.168.1.10 192.168.1.1 GateWay：192.168.1.1 GateWay：192.168.1.1 GateWay：192.168.1.1 Diagram 12 Bridge Application WIFI serial server parameter settings: (1) Set the serial server software version to Z-Ver AT+FVER=z (2) Enable Ethernet interface...

  • Page 23: Product Function

    The first three modes can send “+++” and “a” successively through the serial port. USCDR404 will return the confirmation codes “a” and “+ ok” in order to switch to the AT command mode. AT + ENTM can return USCDR404 from AT command mode to the original working mode. For details, please refer to the related chapter of “Serial AT Command”.

  • Page 24: Serial Command Mode

    3.1.2. Serial command mode In this mode ,when USCDR404 works in UDP client or TCP client, allow sending serial data to different servers. Diagram 14 Serial command mode The MCU sends data packets according to the following format. After the WIFI serial server has finished parsing, it only sends n bytes of data to the destination address.
  • Page 25 USCDR404 User manual www.usconverters.com Bit0：（UDP：0 ；TCP：1） Bit1：（long connection：0）Note: Only long connections are currently supported. Bit2：（IP: 0; domain name: 1） Bit7：（Simple protocol：0；Full protocol：1）Note: Only simple protocols are currently supported. Note：  For Bit1, long connection, then after sending data, the connection will remain until the target address is changed again.

  • Page 26: Httpd Client Mode

    USCDR404 User manual www.usconverters.com Parity：0x00+0x00+0x00+0x21+0x00+0x85+0x00+0xA8+0xC0+0x01=0x0f 3.1.3. HTTPD Client Mode The HTTPD Client mode supports three HTTP request methods: POST, PUT, and GET. After setting the specific content of the HTTP header through the AT command or the web page, each time data is sent, the WIFI serial server will automatically encapsulate the sent data into HTTP protocol data and send it to the designated HTTP server.
  • Page 27 HTTP header according to their own needs(If the HTTP request type is POST / PUT, USCDR404 will automatically add Content-Length).The setting commands include "AT + HTPMODE, AT + HTPSV, AT + HTPTP, AT + HTPURL, AT + HTPHEAD". For specific command setting procedures, please refer to the “AT command” chapter.
  • Page 28 USCDR404 User manual www.usconverters.com Diagram 15 HTTPD Client requesting type (2) In “Application Setting”, select Httpdclient Mode as long/short. U.S. Converters LLC...

  • Page 29: Modbus Tcp <=> Modbus Rtu

    USCDR404 User manual www.usconverters.com Diagram 16 HTTPD Client mode settings If set to short connection mode, timeout can be set within the range of 3-65535 (s). Diagram 17 HTTPD Client short connection timeout setting AT command setting: (1) Setting/query the Httpdclient Mode (long/short), for example:...

  • Page 30: At Command Mode

    USCDR404 User manual www.usconverters.com Diagram 18 modbus TCP <=> modbus RTU Setting by AT command: AT+TMODE=modbus Setting by web page: Diagram 19 Data transfer mode 3.1.5. AT command mode Under AT command, send AT command to query the current status and parameters of the W610.
  • Page 31 USCDR404 User manual www.usconverters.com Server 1 USR-DR404 Serial device USR-W610 UART 终端设备 WIFI WIFI Server 2 Server 3 Diagram 20 Multi TCP link data transmission diagram Socket A settings: AT+NETP/AT+TCPTO/AT+TCPLK/AT+TCPDIS Item Description NETP Setting / Query TCPA's network protocol parameters...

  • Page 32: Uart

    USCDR404 User manual www.usconverters.com TCPLKB Query whether TCPB link established TCPDIS Connect / Disconnect TCPB Form 7 Socket B related AT command 3.3. UART 3.3.1. Parameters Item parameter Baud rate 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600,...

  • Page 33: Uart Free Framing

    USCDR404 User manual www.usconverters.com Diagram 21 Set serial port parameters on web page AT command: If the user needs to modify the baud rate of the DR404 to 115200bps, as follows: AT+UART= 115200,8,1,None,NFC 3.3.2. UART Free framing Take sent data from serial device to the DR404 as an example to show the steps of the free framing: if n is the free frame interval, unit is ms, when T1 >n, T2<n, T3<n, T4<n, T5<n and T6>n, then take byte1 -byte5 as a frame, as bellow:...

  • Page 34: Uart Auto-Framing Mode

    1. Auto framing trigger frame length: USCDR404 receives the specified number of bytes from the serial port, forms a data frame, and forwards it to the network.

  • Page 35: Synchronous Band Rate (Rfc2217)

    USCDR404 User manual www.usconverters.com Diagram 24 Trigger Time UART auto framing can be set through the built-in web page “Application Setting -- UART AutoFrame Setting” of DR404 or set by AT command. 3.4. Synchronous Band Rate (RFC2217) Synchronous baud rate is named RFC2217. USR Similar RFC2217 make adjustments on the basis of RFC2217 protocol to improve accuracy of transmission.

  • Page 36: Usr-Link

    USCDR404 User manual www.usconverters.com (115200, 55 AA 55 01 C2 00 N,8,1) (9600, 55 AA 55 00 25 80 N,8,1) Serial parameter bit: Bit # Explanation Value Description 5 bits 6 bits Data bit selection 7 bits 8 bits 1 bit...
  • Page 37 USCDR404 User manual www.usconverters.com Packet Fixed value: 0xFF Header Length Number of all bytes after length (excluding length) and before parity (excluding parity) Command Command type, 0x01 is the query command Parity The accumulated sum of all bytes after the header (excluding the header) and before the parity (excluding the parity).
  • Page 38 USCDR404 User manual www.usconverters.com Parity The accumulated sum of all bytes after the header (excluding the header) and before the parity (excluding the parity). Form 10 Reply Command For example: Mobile phone sends to WIFI serial server (hexadecimal number): FF 00 01 01 02...

  • Page 39: Usr Cloud

    USCDR404 User manual www.usconverters.com Header Length Number of all bytes after length (excluding length) and before parity (excluding parity) Command Command type, 0x82 is the reply command corresponding to the setting command. Parity The parity result of the SSID. If the SSID can be found, the corresponding value is 0x01.

  • Page 40: Heartbeat Packet Function

    USCDR404 User manual www.usconverters.com 3.8. Heartbeat Packet Function In the network transparent transmission mode, the user can choose to enable the custom heartbeat packet function. The heartbeat packet can be sent to the network or serial device: Diagram 25 Heartbeat packet...

  • Page 41: Socket Distribution

    USCDR404 User manual www.usconverters.com (3) Set the heartbeat packet data (maximum 40 bytes). For example, to set the data to the string www.usr.cn, you need to first convert the string to hex 7777772E7573722E636E. AT+HEARTDT=7777772E7573722E636E (4) Set the interval for sending heartbeat packets. The setting range is 1-65535s, and the default is 30s. For example, set the sending interval to 30 seconds.
  • Page 42 USCDR404 User manual www.usconverters.com Format 14 Serial transmission format Header: 0x55 0xFD 0xAA Length: the total number of bytes from parameters(included) to parity (do not included), the high is in front. Parameters: the first byte:common parameters, it is connecting number(socket A and socket B); 0x61 is all the device connected to the socket A, 0x62 is all the device connected to the socket B.
  • Page 43 USCDR404 User manual www.usconverters.com If the DR404 data, return the operating code, details are as fellows: Return Description Note code 0x00 Header error 0x01 Length error 0x02 Parameters error 0x04 Parity error 0x10 Send failed(parameters is right but send failed) Format 16 Errors Parity: from the parameters( included) to parity(not include), add and take the last bytes as parity.

  • Page 44: Timeout Restart

    USCDR404 User manual www.usconverters.com Diagram 26 Socket Distribution AT command to enable the socket: AT+ TCPDPEN =on Others, if more function for the socket A and socket B, please refer to the 2.4. 3.10. Timeout Restart Under the transparent transmission mode, enable the timeout restart function. If the DR404 no WIFI connection or connected but no communication in set time, DR404 will restart.

  • Page 45: Timing Restart

    USCDR404 User manual www.usconverters.com For example: AT+TIMEOUTT=100, if no connection or connected but no communication within 100s, module will restart; if there is connection or communication in 100s, the time will be cleared and regain to time. Item Description TIMEOUTEN...

  • Page 46: Remote Upgrade

    USCDR404 User manual www.usconverters.com Diagram 27 Modbus polling (2) Setting by AT command: Enable/disable Modbus polling function, enable this function: AT+MODBPOLLEN=on/off Set the polling interval (50 ~ 65535) (ms), taking 200ms as an example: AT+MODBPOLLT=200 3.13. Remote Upgrade 3.13.1 Serial server configuration...

  • Page 47: Remote Upgrade System Configuration

    USCDR404 User manual www.usconverters.com Diagram 28 Remote upgrade The remote upgrade function is set to open, select the port of the remote server, enter the server address, and the default reporting interval is 30min. 3.13.2 Remote upgrade system configuration (1) User registration and login Log in to https://ycsj1.usriot.com, click Register to register your account (if you have an account, log in directly) as...
  • Page 48 USCDR404 User manual www.usconverters.com Diagram 29 Login After submitting the registration, the mailbox will receive an activation email, click on the link to activate. Diagram 30 Registration After activation, please contact our company to review the account. The account can be used normally after review.
  • Page 49 USCDR404 User manual www.usconverters.com Diagram 31 Version configuration The version config page can be used to add, delete, modify ftp and http addresses, modify serial numbers, etc. The ftp address and http address cannot be entered manually. Click to select a file. After selecting a file, click Upload.

  • Page 50: Websocket

    USCDR404 User manual www.usconverters.com Diagram 32 Add device ① After the remote monitoring function is turned on, you can view the running status of the device and remotely send AT commands to control the device. Corresponding to the "device monitoring" function on the left menu, the "device monitoring"...

  • Page 51: Product Parameter Setting

    USCDR404 User manual www.usconverters.com Diagram 33 Websocket Webpage Click the “Connect” to realize a Websocket connection, then serial and webpage can transport data with each other. The Websocket server of the DR404 supports 8 clients to connect at most. People make webpage application and have high requirement for the respond speed can contact us.

  • Page 52: Open The Management Webpage

    USCDR404 User manual www.usconverters.com Subnet mask 255.255.255.0 Username admin Password admin Form 19 Basic Parameters 4.1.1. Open the Management Webpage Connecting the DR404 with the wireless net card of the PC, SSID is USR-DR404_xxxx. Enter the browser, fill the 10.10.100.254 (default IP address) and enter. Then fill the username and password( both are: admin) and enter the webpage.

  • Page 53: Mode Selection

    USCDR404 User manual www.usconverters.com This webpage shows a way to quickly configure the USCDR404 for user. Configure the parameters and restart to make the DR404 work normal. Of course, please click the respond webpage to configure. 4.1.3. Mode Selection Diagram 35 Mode Selection In the first page choose the work mode of the DR404:AP/ STA.

  • Page 54: Ap Interface Setting

    USCDR404 User manual www.usconverters.com 4.1.4. AP Interface Setting Diagram 36 AP interface DR404 supports AP interface with which can management the DR404 easier and can realize the networking. Webpage is as above, including SSID, security mode and LAN setup. Both supports user defined.

  • Page 55: Sta Interface Setting

    USCDR404 User manual www.usconverters.com 4.1.5. STA Interface Setting Diagram 37 STA Interface DR404 supports STA interface and can access to other wireless network, setting as above. There are three lists in this webpage, the former one is STA interface parameters,including the SSID of the AP to connect, security mode and others.
  • Page 56 USCDR404 User manual www.usconverters.com Diagram 38 WIFI-Uart setting U.S. Converters LLC...
  • Page 57 Network setting: 4 modes can be set on the network side as TCP server, TCP client, UDP server and UDP client. When USCDR404 is configured as a UDP server, USCDR404 will remember the last UDP client and communicate with the last UDP client. The UDP Client mode only communicates with the target IP and port. When set to TCP Server, there is no need to enter an IP address.

  • Page 58: Ethernet Setting

    USCDR404 User manual www.usconverters.com Note:working in the TCP server mode, when enable it, the first data send by the TCP client to the server is password and enter, the default password is “admin” so the first data should be:0x61 0x64 0x6D 0x69 0x6E 0x0D 0x0A(HEX).

  • Page 59: Httpd Client Mode

    USCDR404 User manual www.usconverters.com 4.1.8. HTTPD Client Mode Diagram 41 HTTPD Client U.S. Converters LLC...

  • Page 60: Advanced

    USCDR404 User manual www.usconverters.com Diagram 42 HTTPD Client Mode Under the HTTPD client mode, the content of the protocol header, including: server address, server port, request type, header path, header Connection and header User-Agent. 4.1.9. Advanced Under the advanced webpage, user can setup port mapping. It only works at STA mode or Ethernet port sets as WAN.
  • Page 61 USCDR404 User manual www.usconverters.com Diagram 43 Advanced U.S. Converters LLC...

  • Page 62: Device Management

    USCDR404 User manual www.usconverters.com 4.1.10. Device Management Diagram 44 Device Management Device management includes username / password settings, factory reset and software upgrade functions. Instr: Restart: when user setting parameters in different webpage, click Apply to make sure it, but these parameters will be effect after restart and DR404 will reboot to fresh the original parameters.

  • Page 63: At Command

    USCDR404 User manual www.usconverters.com 4.2. AT command 4.2.1. Serial AT Command UART parameters: 57600/none/8/1. AT command can be sent by the AT command software or by programming. Take SecureCRT as an example, change from the other mode to AT command mode there always be two steps.
  • Page 64 Note: The specific AT command requires a ENTER, but the "+++" and "a" sent by entering the AT command process do not need a ENTER. In AT command mode, you can view all AT commands and descriptions of USCDR404 through the following help commands, as follows:...

  • Page 65: Net At Command

    USCDR404 User manual www.usconverters.com Diagram 48 Search via serial port Click “Open”, send "+++ a", receive the response "+ ok", then enter the AT command to be sent in the left operation area. After the setting is completed, click "AT + Z" to restart the module, and the parameter settings can be completed.

  • Page 66: Command Format

    USCDR404 User manual www.usconverters.com Diagram 50 Web search Click “Search”, the searched USCDR404 will be displayed, click the USR-DR404, and then set through the left operation area (the method is the same as the serial port setting) Diagram 51 AT command software 4.3.3 Command Format...
  • Page 67 USCDR404 User manual www.usconverters.com [ ]: the part can be select  Command: AT+<CMD>[op][para-1,para-2,para-3,para-4…]<CR> AT+: command prefix [op]L: command operating code, parameters setting or query; “=”: parameters setting “NULL” : query [para-n] : fill when setting the parameters <CR>: end, enter, ASCII code,: 0x0a or 0xod Note: When echoing, the terminator is automatically converted to 0x0a0d.

  • Page 68: At Command

    USCDR404 User manual www.usconverters.com Invalid command Invalid Operator Invalid Parameters Operation not allowed 4.3.4 AT command Command Function Enable/Disable echo function(DR404 does not support) ENTM Enter transparent transmission mode NETP Query/Set Network protocol parameters UART Query/Set serial port parameters UARTF...
  • Page 69 USCDR404 User manual www.usconverters.com effect in TCP Client mode) WANN Query/Set network parameters in STA mode(WAN interface parameters) LANN Query/Set network parameters in AP mode(LAN interface parameters) TCPTO Query/Set timeout re-connection time of socket A MAXSK Query/Set maximum TCP Clients in TCP Server work mode...
  • Page 70 USCDR404 User manual www.usconverters.com HTPMODE Query/Set HTTP Client mode parameters configuration way(new/old) HTTPURL Query/Set HTTP Server address and port in HTTP Client mode(old) HTTPTP Query/Set HTTP requesting method in HTTP Client mode(old) HTTPPH Query/Set HTTP header path in HTTP Client mode（old）...

  • Page 71: At+E

    1.This AT command set is for onboard WIFI module, which can be used for query, setting WIFI serial server parameters。 2.USCDR404 can work in AP mode or STA mode, and the WIFI parameters need to be set with different commands.

  • Page 72: At+Netp

    USCDR404 User manual www.usconverters.com After the command is executed correctly, the module switches from command mode to transparent transmission mode. If need to enter the command mode again, enter "+++" and the confirmation code to return to the command mode.

  • Page 73: At+Uartf

    USCDR404 User manual www.usconverters.com Parameters:  baudrate: band rate,  300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 345600, 460800  data_bits: data bit  5, 6, 7, 8  stop_bits: stop bit  1, 2 ...

  • Page 74: At+Uartfl

    USCDR404 User manual www.usconverters.com Query : AT+ UARTFT<CR> +ok=<time><CR>< LF ><CR>< LF > Setting: AT+ UARTFT=<time><CR> +ok<CR>< LF ><CR>< LF > Parameters:  time: auto-frame trigger time, unit is ms. Range: 100~10000. 4.3.4.7. AT+UARTFL Function: Query/Set auto-frame trigger length Format: Query : AT+ UARTFL<CR>...

  • Page 75: At+Wmode

    USCDR404 User manual www.usconverters.com  Httpdclient: HTTPD Client mode After restarting the module, parameters take effect. Note: After power on, works in transparent transmission mode by default. 4.3.4.9. AT+WMODE Function: Query/Set WIFI mode（AP or STA） Format: Query : AT+WMODE<CR> +ok=<mode><CR>< LF ><CR>< LF >...

  • Page 76: At+Wsssid

    USCDR404 User manual www.usconverters.com  WPA2PSK  encry: Encryption algorithm, including  NONE: valid when auth=OPEN.  WEP-H: valid when auth=OPEN or SHARED（WEP, HEX）  WEP-A: valid when auth=OPEN or SHARED（WEP, ASCII）  TKIP: valid when auth= WPAPSK/WPA2PSK  AES: valid when auth= WPAPSK/WPA2PSK ...

  • Page 77: At+Webu

    USCDR404 User manual www.usconverters.com Parameters:  ret:  If not connected: Returns “Disconnected”.  If connected: Returns "SSID of AP (MAC of AP)" This parameter only valid in STA mode. 4.3.4.13. AT+WEBU Function: Query/Set web server username and password. Format: Query : AT+WEBU<CR>...

  • Page 78: At+Wakey

    USCDR404 User manual www.usconverters.com  11BGN   ssid: SSID in AP mode  channel: WIFI channel, AUTO or CH1~CH11 This parameter only valid in AP mode, after restarting the module, parameters take effect. But can also be set in STA mode.

  • Page 79: At+Mslp

    USCDR404 User manual www.usconverters.com This parameter only valid in AP mode, after restarting the module, parameters take effect. But can also be set in STA mode. 4.3.4.16. AT+MSLP Function: Module enters sleep mode (whether the module works in AP or STA mode, WIFI is not available at this time) Format: Query : AT+ MSLP <CR>...

  • Page 80: At+Tcplk

    USCDR404 User manual www.usconverters.com 4.3.4.18. AT+TCPLK Function: Query whether TCP connection is established Format: AT+ TCPLK<CR> +ok=<sta><CR>< LF ><CR>< LF > Parameters:  sta.: Returns whether TCP connection is established, for example:  on, TCP connection is established  off, TCP connection is not established 4.3.4.19.

  • Page 81: At+Lann

    USCDR404 User manual www.usconverters.com Query : AT+WANN<CR> +ok=<mode,address,mask,gateway><CR>< LF ><CR>< LF > Setting: AT+ WANN=< mode,address,mask,gateway ><CR> +ok<CR>< LF ><CR>< LF > Parameters:  mode: IP mode of WAN, for example  static, static IP  DHCP, dynamic IP ...

  • Page 82: At+Maxsk

    USCDR404 User manual www.usconverters.com +ok=<time><CR>< LF ><CR>< LF > Setting: AT+ TCPTO=<time ><CR> +ok<CR>< LF ><CR>< LF > Parameters:  time.: TCP timeout, <= 600 (600s), >=0 (0 means no timeout), default is 0. TCP timeout: The module TCP channel starts counting when no data is received, and clears the count when data is received.

  • Page 83: At+Tcpptb

    USCDR404 User manual www.usconverters.com  When querying, sta.: Returns whether socket B is enabled.  on, enable  off, disable After restarting the module, parameters take effect. 4.3.4.25. AT+TCPPTB Function: Query/Set TCPB port number Format: Query : AT+TCPPTB <CR> +ok=<port><CR>< LF ><CR>< LF >...

  • Page 84: At+Tcptob

    USCDR404 User manual www.usconverters.com 4.3.4.27. AT+TCPTOB Function: Query/Set TCPB timeout Format: Query : AT+ TCPTOB<CR> +ok=<time><CR>< LF ><CR>< LF > Setting: AT+ TCPTOB=<time ><CR> +ok<CR>< LF ><CR>< LF > Parameters:  time.: TCPB timeout, <= 600 (600s), >=0 (0 means no timeout), default is 0.

  • Page 85: At+Fudlx

    USCDR404 User manual www.usconverters.com After sending this command, enable the Ethernet interface. This command is not saved, that is, Ethernet is still disabled after restart. If need to save this setting, please use the factory setting command. If need to enable the Ethernet interface permanently, please use the “AT + FEPHY = on”...

  • Page 86: At+Hidessid

    USCDR404 User manual www.usconverters.com This command enables or disables DHCP server function of LAN port, default is enabled. 4.3.4.33. AT+HIDESSID Function: Enable/Disable hiding the SSID in AP mode. Format: AT+HIDESSID=on/off<CR> +ok<CR>< LF ><CR>< LF > This command enables or disables hiding the SSID of the module in AP mode. Default is disabled.

  • Page 87: At+Mid

    USCDR404 User manual www.usconverters.com Format: AT+ Z<CR> Module restarts. 4.3.4.37. AT+MID Function: Query module’s MID Format: Query : AT+MID<CR> +ok=<module_id><CR>< LF ><CR>< LF > Parameters:  module_id: module MID, Format  A11-yymmddnnnn  yymmdd: Represents the production date, year, month and day ...

  • Page 88: At+Wsqy

    USCDR404 User manual www.usconverters.com Parameters: commod help: Command line instructions 4.3.4.40. AT+WSQY Function: Query/Set RSSI threshold(percentage) to switch among three AP in STA mode Format: Query : AT+ WSQY<CR> +ok=<ret><CR>< LF ><CR>< LF > Setting: AT+ WSQY=< ret><CR> +ok<CR>< LF ><CR>< LF >...

  • Page 89: At+Httpurl

    USCDR404 User manual www.usconverters.com 4.3.4.42. AT+HTTPURL Function: Query/Set IP address and port of HTTP server (old). Format: Query : AT+ HTTPURL<CR> +ok=<ip>,<port><CR>< LF ><CR>< LF > Setting: AT+ HTTPURL=<ip>,<port><CR> +ok<CR>< LF ><CR>< LF > Parameters:  ip: IP address of HTTP server.

  • Page 90: At+Httpcn

    USCDR404 User manual www.usconverters.com Query : AT+ HTTPPH<CR> +ok=<path><CR>< LF ><CR>< LF > Setting: AT+ HTTPPH=<path><CR> +ok<CR>< LF ><CR>< LF > Parameters:  path: HTTP header path. 4.3.4.45. AT+HTTPCN Function: Query/Set HTTP header connection mode (old). Format: Query : AT+ HTTPCN<CR>...

  • Page 91: At+Htpsv

    USCDR404 User manual www.usconverters.com 4.3.4.47. AT+HTPSV Function: Query/Set HTTP server address and port number (new). Format: Query : AT+ HTPSV<CR> +ok=<ip>,<port><CR>< LF ><CR>< LF > Setting: AT+ HTPSV=<ip>,<port><CR> +ok<CR>< LF ><CR>< LF > Parameters:  ip: HTTP server IP address ...

  • Page 92: At+Htpurl

    USCDR404 User manual www.usconverters.com 4.3.4.49. AT+HTPURL Function: Query/Set HTTP URL (new). Format: Query : AT+ HTPURL<CR> +ok=<path><CR>< LF ><CR>< LF > Setting: AT+ HTPURL=<path><CR> +ok<CR>< LF ><CR>< LF > Parameters:  path: HTTP requesting path. 4.3.4.50. AT+HTPHEAD Function: Query/Set HTTP header (new).

  • Page 93: At+Regtcp

    USCDR404 User manual www.usconverters.com Parameters:  mode: registration packet type, including  mac: registration package is MAC address  cloud: USR Cloud  usr: user custom registration package  off: Disable registration package function For example: AT+REGEN=MAC 4.3.4.52. AT+REGTCP Function: Query/Set registration package sending type Format: Query : AT+ REGTCP<CR>...

  • Page 94: At+Regcloud

    USCDR404 User manual www.usconverters.com 4.3.4.54. AT+REGCLOUD Function: Query/Set USR Cloud ID and password. Format: Query : AT+REGCLOUD<CR> +ok=<name,password><CR><LF><CR><LF> Setting: AT+REGCLOUD=<name,password><CR> +ok<CR>< LF ><CR>< LF > Parameters:  name: device ID, 20 digits.  password: password, up to 8 digits. For example: AT+REGCLOUD=00004219000000000600,123456 4.3.4.55.

  • Page 95: At+Hearten

    USCDR404 User manual www.usconverters.com Format: Query : AT+TCPDPEN <CR> +ok=<sta.><CR>< LF ><CR>< LF > Setting: AT+ TCPDPEN =<on/off><CR> +ok<CR>< LF ><CR>< LF > Parameters:  When querying, sta.: returns whether socket distribution function is enabled, including  on, enabled ...

  • Page 96: At+Heartdt

    USCDR404 User manual www.usconverters.com Query : AT+HEARTTP <CR> +ok=<sta.><CR>< LF ><CR>< LF > Setting: AT+ HEARTTP =<NET/COM><CR> +ok<CR>< LF ><CR>< LF > Parameters:  When querying, sta.: returns heartbeat package sending type, including  NET, heartbeat package is sent to network ...

  • Page 97: At+Rebooten

    USCDR404 User manual www.usconverters.com +ok<CR>< LF ><CR>< LF > Parameters:  time.: heartbeat package sending interval, 1~65535s, default is 30s. 4.3.4.61. AT+REBOOTEN Function: Enable/Disable timing restart function Format: Query : AT+REBOOTEN<CR> +ok=<sta.><CR>< LF ><CR>< LF > Setting: AT+ REBOOTEN=<on/off><CR> +ok<CR>< LF ><CR>< LF >...

  • Page 98: At+Timeouten

    USCDR404 User manual www.usconverters.com 4.3.4.63. AT+TIMEOUTEN Function: Enable/Disable timeout restart function Format: Query : AT+TIMEOUTEN<CR> +ok=<sta.><CR>< LF ><CR>< LF > Setting: AT+ TIMEOUTEN=<on/off><CR> +ok<CR>< LF ><CR>< LF > Parameters:  When querying, sta.: returns whether timeout restart function is enabled, including ...

  • Page 99: At+Httpscen

    USCDR404 User manual www.usconverters.com AT+FAPSTA=on/off<CR> +ok<CR>< LF ><CR>< LF > This command enables or disables AP+STA function, default is disabled. Parameter takes affect after restarting the module. 4.3.4.66. AT+HTTPSCEN Function: Query/Set HTTPD Client mode: long/short Format: Query : AT+HTTPSCEN <CR>...

  • Page 100: 68.At+Update

    USCDR404 User manual www.usconverters.com 4.3.4.68.AT+UPDATE Function: Query/Set remote upgrade parameters. Format: Query : AT+UPDATE<CR> +ok=<state, server address, server port, interval ><CR>< LF ><CR>< LF > Setting: AT+ UPDATE =< state, server address, server port, interval ><CR> +ok<CR>< LF ><CR>< LF >...
  • Page 101 USCDR404 User manual www.usconverters.com Setting: AT+ MONITOR=< state , interval ><CR> +ok <CR>< LF ><CR>< LF > Parameters:  state: status  on/off  interval: reporting interval  default is 10min, maximum time interval (max): 120min Parameter takes affect after restarting the module.

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