USR iot USR-TCP232-ED2 User guide

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USR-TCP232-ED2 User Manual www.usriot.com

USR-TCP232-ED2 User Manual

File Version: V1.1.2

Jinan USR IOT Technology Limited 1 / 82 [email protected]

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USR-TCP232-ED2 User Manual www.usriot.com

Contents

1. Get Start

2. Overview

3. Hardware Parameters

4. Product Function

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1.1. Hardware Testing Environment

1.1.1. Hardware Preparing

1.1.2. Hardware Connection

1.2. Net Testing Environment

1.3. Default Parameters Testing

1.4. Data Transport Testing

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2.1. Brief Introduction

2.2. Features

2.3. Basic Parameters

3.1. Pin Definition

3.2. Dimension

4.1. Net basic function

4.1.1. IP address/subnet masks/gateway

4.1.2. DNS Address

4.1.3. Hardware Restore the Factory Function

4.1.4. Web Server

4.1.5. Net Firmware Upgrade

4.2. Socket

4.2.1. TCP Client mode

4.2.2. TCP Server Mode

4.2.3. UDP Client mode

4.2.4. UDP Server mode

4.2.5. HTTPD client

4.2.6. Websocket

4.2.7. USR-VCOM

4.3. Serial Function

4.3.1. Serial port Basic Parameters

4.3.2. Flow Control

4.3.3. Serial Port Mapping

4.3.4. Similar RFC2217

4.4. Special Function

4.4.1. Heartbeat Package Function

4.4.2. Modbus Gateway

4.4.3. Registration Package

4.4.4. USR-cloud

4.4.5. Net Printing

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4.4.6. Customize Webpage

4.4.7. Customize MAC

4.4.8. Restart Timeout

4.4.9. Clear Buffer Data

4.4.10. Short Connection

5. Parameters Setting

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5.1. Net Protocol Setting Parameters

5.1.1. Setup Software Setting Parameters

5.1.2. Setting Protocol Setting Parameters

5.2. Webpage Setting Parameters

5.3. AT Command

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5.3.1. Net AT Command

5.3.2. Serial AT Command

5.3.3. Error AT Command

5.3.4. AT Command

5.3.5. AT Command Details

6. Contact us

7. Disclaimer

8. Modified History

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Jinan USR IOT Technology Limited 3 / 82 [email protected]

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USR-TCP232-ED2 User Manual www.usriot.com

1. Get Start

USR-TCP232-ED2 is a module that can realize data transmission between the Network and TTL serial port, which is equipped with ARM cortex-M4 processor. No need to care of the details, the module realize the protocol converse.parameters can be set in the software and webpage, configure one time and save forever.

This character aimed at get start and the user are advised to operation one time according to the instr to understand USR-TCP232-ED2 completely.

Questions occur in the testing, you can refer to our application case and answers:

https://www.usriot.com/support/faq/ethernet-series/

Also you can submit the problem into the support: http://h.usriot.com/

Product link: https://www.usriot.com/products/triple-ttl-uart-to-ethernet-module.html

Related software:  M4 setting software: https://www.usriot.com/support/downloads/usr-m4-setup-software-v234102.html (also, it can be used in the industrial serial to Ethernet Converter:USR-N668,USR-N510, USR-N520, USR-N540, USR-TCP232-410S, USR-TCP232-419 and industrial ethernet modules: USR-K7, USR-TCP232-E2.)  Testing software: https://www.usriot.com/support/downloads/usr-tcp-test-testing-software.html

Diagram 1-1 Download Page

1.1. Hardware Testing Environment

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1.1.1. Hardware Preparing

 USR-TCP232-ED2*1

 USR-Kx-EVK*1

 Cable*1

 PC *1

 Power adapter (DC5V 1A)*1

 Serial port cable *1

USR-TCP232-ED2 User Manual www.usriot.com

Diagram 1.1.1-1 hardware prepare tools

1.Testing purpose:

 Have a complete understand for USR-TCP232-ED2

 Testing the function.

2.Data direction

Diagram 1.1.1-2 Data Direction

1.1.2. Hardware Connection

To test the communication converse from serial port to net, connect the USR-TCP232-ED2 with evaluation board, and connected with the PC using serial cable, then connect the net port of USR-TCP232-ED2 and PC. Power on the it. The diagram is as fellow:

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Diagram 1.1.2-1 Hardware Connection

Note: the power adapter and cable are from USR.

1.2. Net Testing Environment

To prevent from searching nothing, not ping and not opening the webpage, you should testing the below contents before using.

1) Shut down firewall and antivirus software.

2) Shut down net card none-related and reserve only one local connection.

3) For the direct connection between PC and server, please provide a static IP in the same LAN with the IP of

USR-TCP232-ED2, e.g.192.168.0.201

Diagram 1.2-1 Local Connection of the PC

1.3. Default Parameters Testing

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1.4. Data Transport Testing

Item

Content

Username

admin

Password

admin

IP address of ED2

192.168.0.7

Subnet masks of ED2

255.255.255.0

Default gateway of ED2

192.168.0.1

Default mode of the port1 of ED2

TCP Server

Default local port of the port1 ED2

23 Serial port baud rate

115200

Serial port parameters

None/8/1

USR-TCP232-ED2 User Manual www.usriot.com

Form 1.3-1 Default parameters

After the above steps, the USR-TCP232-ED2 can realize the bi-direction between the serial port and ethernet, operation steps are as fellows:

1) Open the “USR-TCP232-Test.exe” connecting the hardware as Diagram 1.1.2-1 .

2) Net setting change into TCP Client, enter the 192.168.0.7 into IP address, server port is 23. then click to build

TCP connection. serial baud rate:115200, Serial port parameters: none/8/1 then open the serial port.

From now, we can have the data transmit testing from the serial port to network.

Direction from serial port to network:

PC serial port → USR-TCP232-ED2 serial port → USR-TCP232-ED2 network → PC network data

Direction from network to serial port:

PC network data → network →USR-TCP232-ED2 serial port → PC serial port

As the below:

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Diagram 1.4-1 Default Parameters Testing

2. Overview

2.1. Brief Introduction

Multifucntion serial to Ethernet module USR-TCP232-ED2, which supports three TTL serial ports, can realize data transmission between the network and TTL serial port. This module is equipped with ARM cortex- M4 processor, which has the advantages of low power consumption, fast speed and high stability.

Equipped with the net transform, serial communication baud rate can reach at 1024Kbps, USR-TCP232-ED2 supports several work mode such as:TCP Server, TCP Client, UDP, Httpd Client and WEB to Serial(Websocket), can be figured in the webpage or the upset software. The internal integration of TCP/IP protocol stack, user can use it to complete the embedded device networking function easily,saving the development process of human, material and development cycle, so that products can be faster into the market, enhance competitiveness.

Passed the strict testing, USR-TCP232-ED2 has successful case in Banks, highways, large corporate networks, busy webcam networks and complex network environments such as fiber-optic to Ethernet.

2.2. Features

 Equipped with ARM cortex-M4, industrial width of temperature,TCP/IP protocol stack, more stable and reliable.  Equipped with network transformer, supports 1.5KV electromagnetic isolation

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Parameter

Value

Hardware parameters

Input Voltage

VCC: 3.0～3.6V( 3.3V is best) VDD: 5.0~7.0V(5.0V is best)

Working Current [email protected] / 120mA5.0V

Encapsulation way

Serial port

600~1M(bps)

Software parameters

Network protocol

IP, IPV4, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP, Web socket

Access way to IP

Static IP, DHCP

DDNS

Support

User parameters

Software setting, webpage setting, AT command

Single transparent transmission

TCP Server/TCP client/UDP Server/UDP Client

Modbus

Supports modbus gateway

Webpage to serial port

Websocket

Similar RFC2217

Support

Httpd client

support

Self-defined webpage

support

 Supports TCP server, TCP client, UDP server, UDP client and HTTPD client work mode  Build-in webpage where can set the parameters, also can customize webpage. The port of the webpage can be

defined

 Supports two TTL serial ports, can work in same time independently  Supports RTS/CTS hardware flow control and Xon/Xoff software flow control  Supports USR-VCOM  Baud rate:600bps~1Mbps; and five parity way:none, odd, even, mark, space  Supports modbus gateway  Supports Reload button, hardware restore to factory setting  RJ45 have Link/Data indicator, in the net port, there is Isolating transformer,1.5KB ESD  The unique MAC in the world(begin with D8-B0-4C), and the user can self-defined  Supports net upgrade firmware,DDNS, DHCP  Supports static IP and DHCP, query the device in LAN with UDP  Supports keepalive, check dead connection and abnormal and reconnection  Supports password and username, more safety  Supports two websockets to realize the bi-direction transparent transmission between serial port and webpage.

2.3. Basic Parameters

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TCP server connection

Maximum 8

Net buffer

Send:16Kbyte; receive:16Kbyte

Serial port buffer

Send:2K byte;receive: 2kbyte

Average transport delay

<10ms

Set software

USR-VCOM, USR-Cloud, parameters setting software

others

Certification

CE,FCC, ROHS

Protection

1.5KV electromagnetic isolation

Size

44.5x31.8x15.4 mm(L*W*H)

Operating Temp.

-40～+85°C

Storage temp

-40～+105°C

operating humidity

5%～95% RH

Storage humidity

5%～95% RH

Accessory

None

Package

Electrostatic bubble

NO.

Name

Instr

I/O

Voltage range

ETH_TX+

Ethernet TX+

3.0-3.6V

ETH_TX-

Ethernet TX-

3.0-3.6V

ETH_RX+

Ethernet RX+

3.0-3.6V

ETH_RX-

Ethernet RX-

3.0-3.6V

LED_DATA

Net data light

3.0-3.6V

TXD0

Serial 0 send

3.0-3.6V

RXD0

Serial 0 received

3.0-3.6V

485_en(RTS0)

RS485 receive and send control

Reload

Hardware restore to factory setting. Put down the reload before power on, after 5s, put up and can restore the factory setting

3.0-3.6V

RST

RST pin is the pin for module to restore, please connect to the IO port of the MCU. Restore the module when there is abnormal occurring. Restore the module when this pin receive 200ms low level power. Powering on and restoring the module, is normal operate for module

3.0-3.6V

3. Hardware Parameters

3.1. Pin Definition

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GND

Ground

3.0-3.6V

GND

Ground

3.0-3.6V

+5V

5.0V power

5.0-7.0V

+5V

5.0V power

5.0-7.0V

LED_LINK

Net link light(net port physical connection light)

3.0-3.6V

+3.3V

3.3V power

3.0-3.6V

RXD1

Serial 1 received

3.0-3.6V

TXD1

Serial 1 sent

3.0-3.6V

RXD2

Serial 2 received

3.0-3.6V

TXD2

Serial 2 sent

3.0-3.6V

CTS0

Serial 0 clear sent

3.0-3.6V

RTS1

Default is 485 receive and send switching

3.0-3.6V

CTS1

Serial 1 clear sent

3.0-3.6V

Note: P power pin

I input pin O output I/O bi-direction data transmission pin

USR-TCP232-ED2 User Manual www.usriot.com

Form 3.1-1 Pin Definition

3.2. Dimension

Note: detailed PCB file please down load from office net:

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Diagram 3.2-1 Dimension

http

www.usr.cn/Download/52.html

://

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4. Product Function

This character instruct all the function of the USR-TCP232-ED2, below is the details.

Diagram 4-1 USR-TCP232-ED2 Function

4.1. Net basic function

4.1.1. IP address/subnet masks/gateway

1. IP address is the identity representation of the module in the LAN, which is unique in the LAN, so please be sure

there is no another device same as it in the LAN.

 Static IP Handle to setting. Note fill the IP, subnet masks and gateway. Static IP adopted to the environment that required to statistics the IP and the device and makes them correspond

one to one.

Advantage: accessing the device that can not distribute IP address can be searched via UDP broadcast. Disadvantage: different net segment in the different LAN can not communicate normally.

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Name

Instr

AT+WANN

Setting and query the access way,IP, subnet masks and gateway parameters for USR-TCP232-ED2

 DHCP Get IP address , gateway address, DNS server and other information from the gateway server to easy the step for

setting IP address, DHCP adopted to the environment that have no special requirement to IP.

Advantage: accessing the device equipment with the DHCP server such as router can communicate directly.

Reduce the hassle of setting IP address and subnet masks.

Disadvantage: accessing the device with no DHCP server such as computer directly, USR-TCP232-ED2 can not work.

2. Subnet masks is a 32 address, used to determine the host number and the network number by shielding some

IP address, indicates the number of subnet and determine the flag within the subnet. Using combine with the IP address. The subnet masks needed to set, usually we use the subnet masks: 255.255.255.0. The number of IP addresses in the subnet is 2 to the eighth power minus 2, that is, 256-2=254, and the general host addresses are all 0 or 1 (binary) has its special role.

3. Gateway is the net port of the LAN. If you connect the router to access the internet, the gateway is the router IP

address, setting wrong and can not access into the net. No device such as router and no setting, keep the default.

4. Related AT command.

5.Setup software

Form 4.1.1-1 Related AT Command

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Diagram4.1.1-1 Setup Software

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Name

Instr

AT+DNS

Setting and query the DNS address server.

4.1.2. DNS Address

Diagram 4.1.2-1 DNS Server

DNS address of the USR-TCP232-ED2 can be set. When USR-TCP232-ED2 need DNS, it will quest for the address

that you set.(3010 and above version support self-define DNS address.)

The default DNS server address is the gateway. In DHCP, default DNS address is acquired automatically. DNS address can be set, which means that if the domain name server are imperfect, user also can realize the

domain name analyze referred to AT command.

form 4.1.2-1 DNS AT Command

4.1.3. Hardware Restore the Factory Function

Module supports hardware restore factory function. Powered off and put down the reload. Then power on and keep the reload down for 5s. After put up, restore to

factory setting successfully.

Steps: Put down the reload →power on →reload keep for 5s→ put up

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Name

Instr

AT+RELD

Restore to factory setting

Diagram 4.1.3-1 Restore to Factory Setting Step

When there are wronged parameters or forget the password, you can use hardware restore.

Form 4.1.3-1 Hardware Restore Factory AT Command

4.1.4. Web Server

The build-in webpage of the USR-TCP232-ED2 same as the common webpage. User can check the related status of

the module via webpage. Default port of the web server:80(can be modify, after modify, you can access the webpage via other port.

Check the running status of the USR-TCP232-ED2

1) Running time: determine the running time and whether restart.

2) TX count(eth): determine how many data USR-TCP232-ED2 send to internet.

3) RX count(eth): determine how many data send to module from net

4) Conn status(eth)A: connection status of the A to determine which status that USR-TCP232-ED2 stay. Connection status: IDLE, LISTEN, CONNECTING, CONNECTED, ERROR IDLE: initial status, no connection and no listening. e.g. waiting connection of the short connection or original

status.

LISTEN: under TCP server mode, listening and wait being connected. CONNECTING: under TCP client, USR-TCP232-ED2 building the connection to TCP server CONNECTED: have built CONNECTED(n):under TCP server, the number of the client connected. ERROR: USR-TCP232-ED2 stayed in abnormal disconnection.

5) Conn status (ETH)B:connection status of socket B

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Diagram4.1.4-1 Running Status

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Name

Instr

AT+SOCKA1

Setting the protocol/ remote IP/remote port of ED2 SOCKA

AT+SOCKB1

Setting the protocol/ remote IP/ remote port of ED2 SOCKB

4.1.5. Net Firmware Upgrade

Net upgrade firmware is stable and easy. New function can be enjoyed in the last firmware to meet the high

requirement. Ask for new firmware from supply or from the USR support: http://h.usriot.com, details please refer to

5.1.1 firmware upgrade.

4.2. Socket

There are five work modes for USR-TCP232-ED2:TCP server, TCP client, UDP server, UDP client and HTTPD client.

Setting from the setup software or the webpage.

Diagram 4.2-1 Work Mode

Form 4.2-1 Work Mode AT Command

4.2.1. TCP Client mode

Diagram 4.2.1-1 TCP Client Mode

1. TCP client provides client connection for TCP net server. Build connection automatically and connect to server

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to realize the data transmit between serial port and server port. According to related rule of TCP, TCP client has difference between connecting and disconnecting, to confirm the data transport reliable. Usually used in the data interaction between device and server, which is the commonest communication way.

2. Under TCP client mode, USR-TCP232-ED2 supports recognize the abnormal connection automatically. About

15s internal to send Keep Alive to keep active after build. If there is abnormal disconnection, USR-TCP232-ED2 will find it and reconnection.USR-TCP232-ED2 connects the server as a TCP, remote port is 0, connecting with random port every time.

3. connecting the remote IP automatically, but do not receive any other connecting quest.

4. Supporting the similar RFC2217, USR-cloud and modbus TCP. In LAN, if the USR-TCP232-ED2 is static IP, please

be sure that set the IP of USR-TCP232-ED2 in the same LAN and set gateway correctly, or USR-TCP232-ED2 is can not communication.

5. Note: keep alive, similar RFC2217, USR-cloud and modbus TCP are instructed in the bellow.

6. TCP client communication case: ① USR-TCP232-ED2 work in TCP client mode, remote IP:172.16.11.8, remote port:8234, click to save then search

the USR-TCP232-ED2 again and check the parameters.

Also you can set in the webpage, remote IP and port are as above, then save and restart.

Diagram 4.2.1-2 TCP Client Setup Software Setting

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Diagram 4.2.1-3 TCP Client Webpage Setting

② connecting the TCP server, the IP of my computer:172.16.11.8, local host port:8234(can be modify), testing

software show the connection information:172.16.11.68:24( if the local port of USR-TCP232-ED2 is 0, here will distribute a port randomly for USR-TCP232-ED2, e.g.172.16.11.68:49155).

③ setting the correct serial port parameters, click the serial port and the sent, receive the bi-direction data

transmission.

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Diagram 1.4-1 TCP Connection Testing

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4.2.2. TCP Server Mode

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Diagram 4.2.2-1 TCP Server Mode

1. Under TCP server mode ,module monitoring the local port, receive and build connection when there is

connecting quest, receive the data and sent all to the client connected. If access the TCP server of USR-TCP232-ED2 across the public net, user should build termination mapping on the router. (mapping way: http://www.usr.cn/Download/155.html) also TCP server supports Keepalive to monitoring connection timely.

2. Used in communicating with the TCP client in LAN. Adopt to the situation where is no server and several PC

and phone sending quest. And same as TCP client , TCP server has different between connecting and disconnecting to confirm data transport stable.

3. TCP server supports similar RFC2217 and modbus TCP

4. At most USR-TCP232-ED2 can receive 8 client to connect when work as TCP server. The max number of the

client can be connected can be set.

5. Under TCP server,USR-TCP232-ED2 listens the local port and do not monitoring, if the questing number more

than max number you set, kick off the oldest one.

6. communication case: USR-TCP232-ED2 work in CP server mode, local port 23. Open the testing software and have the mode to be TCP

client, writing the remote IP and remote local port, the click connection and testing data transporting.

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Diagram 4.2.2-2 TCP Server Setup Setting

Diagram 4.2.2-3 TCP Server Webpage Setting

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4.2.3. UDP Client mode

Diagram 4.2.2-4 TCP Connection Testing

Diagram 4.2.3-1 UDP Client Mode

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1. This mode belongs to UDP protocol.

2. UDP client is a wireless transport protocol, provide the transmission service that easy and not reliable. No

difference between the disconnecting and connecting, make the IP and port then send data to it. No requirement for drop package. Small data package and fast frequency, send data to point IP.

3. Under UDP client mode ,USR-TCP232-ED2 communicate with the remote port of the remote IP, if the data

comes from other tunnel, it will not be received by USR-TCP232-ED2.

4. Under the UDP client, USR-TCP232-ED2 can realize the UDP broadcast if the remote address is

255.255.255.255; meanwhile, it also can receive the broadcast data. 3010 and above firmware supports broadcast in

LAN, like

xxx.xxx.xxx.255.

5. Communication case:

1 Build a UDP, the IP of the PC: 172.16.11.8, port:20108 2 USR-TCP232-ED2 work in UDP client mode, remote port is 20108

Diagram4.2.3-1 UDP Setup Setting

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Diagram 4.2.3-2 UDP Webpage

3 Click the serial port send. Received data, the testing software remote IP and port change into IP and port for

USR-TCP232-ED2, then click net send and send data to serial port.

Diagram 4.2.3-3 UDP Connection Testing

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4.2.4. UDP Server mode

Diagram 4.2.4-1 UDP Server Mode

1. Do not check the original IP address basic on the common UDP, under UDP server mode, USR-TCP232-ED2

received the UDP data package and change the remote IP change into data original IP and port, the turn back to the last IP and port.

2. Used in communicating with several device and do not want to use the TCP for the high speed.

3. Application case:

set USR-TCP232-ED2 into UDP server mode, local port is 23

Click two testing software, work mode:UDP; remote IP and port is the IP and port of USR-TCP232-ED2. then click send, the serial port will receive the data , click serial port send, the testing software will display the data that received by the recent one communicating with USR-TCP232-ED2.

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Diagram 4.2.4-2 Setup Setting Software

Diagram 4.2.4-3 Webpage Setting

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Diagram 4.2.4-4 Connection Testing

4.2.5. HTTPD client

1. Under the HTTPD client mode, user’s device send questing data to appointed HTTP server via USR-TCP232-ED2,

then USR-TCP232-ED2 received the data from HTTP serve and analyze it and send to serial device.

2. No need to care of the data converse between the serial port data and net data package, easy parameters

configuring and can realize the serial device send questing data to HTTP server.

3. When sending data to HTTP server, the URL, header, remote IP, remote port and other information can be set via USR-TCP232-ED2, then save them. Every time send data, USR-TCP232-ED2 will add URL and header. In terms of the returned data, user can choose whether to drop the header.

4. Application case:

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Diagram 4.2.5-1 HTTP Client Webpage Setting

1. Set into HTTPD client mode via webpage, and set correspond remote IP and port.

2. Setting the HTTPD type, HTTPD URL and httpd client header

3. Hook whether remove HTTPD head when the data send back.

4. Then save them, and restart.

5. Open the serial port to send data and the serial data will submit to your webpage, meanwhile the serial device also received the information that server return.

6. Detailed information can refer to the below diagram.

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Diagram4.2.5-2 HTTP Work Mode

4.2.6. Websocket

Webpage to serial port function can realizes the interaction between the serial port and webpage for

USR-TCP232-ED2. user’s device data display to webpage, and realize the interaction between the webpage and device.

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Diagram 4.2.6-1 Websocket Mode

Web to serial port function display:

1. Setting web to serial port, default port:6432

2. Enter webpage, click the web to serial, bond out “connect success” and means that you can receive and send. Open the Testing software, configuring the serial parameters then open the serial port.

3. Click to send ASCII code, serial receive the data. Click send in testing software, the webpage receive the data.

Diagram 4.2.6-2 Web to Serial Webpage

Webpage to serial port, user should possess of some web program, design the webpage, asking their device data and deal with the data. Then the result will display on the web. After design the webpage, download the webpage to USR-TCP232-ED2 according to the defined webpage to realize the development.

1. Build a connection and connect to USR-TCP232-ED2 function connectx(){ try{ socket=new WebSocket('ws://'+window.location.host+':6432'); socket.binaryType = "arraybuffer";

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}catch(e){

Browser

Version

Chrome

Supported in version 4+

Firefox

Supported in version 4+

Internet Explorer

Supported in version 10+

Opera

Supported in version 10+

Safari

Supported in version 5+

alert('error'); return; } socket.onopen = sOpen; socket.onerror=sError; socket.onmessage=sMessage; socket.onclose=sClose }

2. Receive the data function sMessage(msg)

3. Send data function send()

USR-TCP232-ED2 User Manual www.usriot.com

Form 4.2.6-1 Webpage Browser and Version

4.2.7. USR-VCOM

Diagram 4.2.6-1 VCOM

Receive the data assigned VCOM data, and send it in the data of net data using VCOM to solve the PC as a serial port and can not connect with device,which is convenient for users. E.g.

1. Take USR-TCP232-ED2 in TCP Server mode as a server, which is convenient for user to change the computer and

connected.

2. Setting the way to connect the VCOM and USR-TCP232-ED2 manually: ① Open the VCOM and add the serial port, choose the port: COM2(avoid the exist COM port) protocol use the TCP client, remote IP set to the IP of the USR-TCP232-ED2, remote port is the port of the USR-TCP232-ED2. note fill the device name. ② Click sure, observe if the connection is established, if the connection has established, and you can test the data

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transport transmission.

3.More information reference the below:

http://www.usr.cn/Search/getList/keyword/%E8%99%9A%E6%8B%9F%E4%B8%B2%E5%8F%A3/

4.3. Serial Function

4.3.1. Serial port Basic Parameters

Diagram 4.3.1-1 Serial Port Basic Parameters

Serial basic parameters includes: baud rate, parity, data and stop

1. Baud rate: serial communication rate, can be set from:600~1Mbps, baud rate supports random baud rate.

2. Data: the length of the data, range from 5~8

3. Stop: can be set from 1~2

4. Parity: none, odd, even, mark, space.

Via setting serial port parameters, keep consistent with the device to make sure communicating.

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4.3.2. Flow Control

USR-TCP232-ED2 User Manual www.usriot.com

Diagram 4.3.2-1 Serial Flow Control

Flow control: the way for serial port flow control, users can choose to enable 485 or not, control the receive and send for 485, 3010 and later default enable 485 control mode, under the condition that no hardware flow control, enable 485.

1. NONE: default serial port mode, under this mode, 3010 and later version enable 485

2. RTS/CTS: hardware flow control. The hardware flow control for USR-TCP232-ED2 supports RTS/CTS.

3. Xon/Xoff: software flow control. 3010 and later version enable the software flow control.

Hardware or software flow control deal the serial port data for better. When the serial port received buffer data out than the threshold value, inform the remote port stop sending data until complete buffering, then inform to deal with data.

Usually used in the situation that rich in time.

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4.3.3. Serial Port Mapping

The serial packing time and length of USR-TCP232-ED2 can be set. Packing the serial port data according to the packing time and packing length under the transparent transmission mode .

The frame mechanism of serial port is based on the packaging time and the packaging length. The case are as fellow.

1. Packing time set as 10ms and the length as 512.

If the internal time for serial received the data more than 10ms, or the length more than 512, USR-TCP232-ED2 send packing to net when the serial port receive data.

2. If the packing time is 0 and the packing length is not 0, only the packing length work; and if the packing length is

0 and he packing time is not 0, only the packing time work.

3. Set the packing time is 0 ms and the packing length is 0 When the packing time is 0ms, USR-TCP232-ED2 works the default packing time: if the interval that serial port received data more than packing time for send 4 byte, USR-TCP232-ED2 send packing. E.g. baud rate 115200, 4 bytes packing time is: T=0.4ms, (if the value less than 0.1ms. Packing time calculates as 0.1ms.

T＝1/baud rate*10*4

4. For the limit of the serial port speed, users should control the flow when USR-TCP232-ED2 receive the data from net and send to serial, or there will be data over flow in serial. So when send net data to serial, user should calculate the data flow. E.g.

Calculate way: if sending M bytes need N s. the way to check for possible overflow methods (if the net situation is

ok, the time can be ignored ). The time for M bytes:

T＝1/baud rate*10*m

If there is no overflow, M bytes of data must be transmit within Ns, N>2T is require for USR-TCP232-ED2 to work properly. If the baud rate is less than 9600, keep n>T. Serial packing time: default is 4 bytes time, can be set from0~255. Serial packing length:default 1460, can be set from the 0~1460.

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4.3.4. Similar RFC2217

Similar RFC2217 is a simple RFC2217 protocol, working with the VCOM and changing serial port parameters

candynamically to realize the communication with variable serial port parameters.

Enable this function, using USR-VCOM can open this function,which can realize the serial baud of the PC software

and USR-TCP232-ED2 automatically match. No need to pay attention to serial port baud rate setting.

Diagram 4.3.4-1 Similar RFC2217 Function

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name

Package head

Baud rate

Median parameter

Parity sum bytes

331

instr

3 byte to reduce miscalculation

High in front, and the minimum is 600( 00 02 58 )

data/stop/parity, next chart

Four sum except the package head .

115200,N,8,1

55 AA 55

01 C2 00

9600, N,8,1

55 AA 55

00 25 80

A8 A no.

instr

value

Describe

1:0

data bits select

5 data bits

6 data bits

7 data bits

8 data bits

stop 0

1 stop

2 stop

Parity enable 0

Disable parity

Enable parity

5:4

Parity type

ODD

Diagram 4.3.4-2 RFC2217 Function

For the encryption of data transmission in some industrial situation, some device will change the data length, baud,

parity and other parameters in the transmission, and USR-TCP232-ED2 supports this function.

Protocol length is 8 bytes, details are as fellows. The value in example are in HEX type.

Form4.3.4-1 RFC 2217 Function Protocol

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EVEN

Mark

Clear

7:6

none

Please fill 0

Form4.3.4-2 Serial Port Parameters Basic Meaning

Enable Note:

1) When using RFC2217, click setting software RFC2217 to enable this function.

2) When the serial port parameters change, send the RFC2217 package, after USR-TCP232-ED2 received the RFC2217 command, modify the serial parameters and can not transparent transmission.

4.4. Special Function

4.4.1. Heartbeat Package Function

Under Transparent transmission mode, have the USR-TCP232-ED2 sent heartbeat package to net server or the

serial port。

Heartbeat package send to the net to keep connecting with server and works in TCP client and UDP client mode. Send heartbeat package to serial port and instead of the query command from net to reduce the communication

flow.

3010 and above version supports heartbeat function which can send to serial and net.

Diagram 4.4.1-1 Heartbeat Webpage

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Diagram 4.4.1-2 Heartbeat Function

Note: net heartbeat package and serial heartbeat package can be not used.

4.4.2. Modbus Gateway

Modbus gateway includes modbus RTU transmission, modbus ASCII transmission, modbus RTU to TCP, modbus

polling and serial query.

Diagram4.4.2-1 Modbus TCP

Modbus RTU and modbus TCP: can realize the modbus serial port protocol and modbus net protocol convert.

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Diagram 4.4.2-1 Modbus TCP Polling

Modbus polling:supports more than one master PC query the data of slave PC, the timeout can be set. 3010 and

above version supports this function.

4.4.3. Registration Package

Under the net transparent transmission mode, user can have the module sent registration package to server to

recognize the original of the data or work as the authorization code for server function.

Registration can be sent when the connection build between the module and server, also it can inset a registration package data in front of the data package. The data registered can be MAC address or the definition registration package(at most the definition registration can be 40 byte.)

3010 and above version supports the registration package.

Send registration package when building connection usually used in the situation that connecting the server needed to register.

Diagram 4.4.3-1 Building send Registration Package

Carrying the registration package:insert the package in front of the registration and used in the protocol transmission.

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Diagram 4.4.3-2 Carrying Registration Package

Diagram 4.4.3-3 Registration Webpage

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4.4.4. USR-cloud

Diagram 4.4.3-1 USR-cloud

USR-cloud aim to solve the problem of the communication between device and device, device and upper machine( android, IOS,PC).USR-cloud used to transparent transport the data, the device connected can access remote data without modify.USR-cloud can used in remote monitor, the internet of things, the internet of cars and intelligent house, so the USR-TCP232-ED2 installed USR-cloud. More information can be scan http://console.usriot.com

Diagram 4.4.3-2 USR-cloud Software Setting

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Note: under the TCP client mode .

Also can be set in the webpage as fellows:

USR-TCP232-ED2 User Manual www.usriot.com

Diagram 4.4.3-3 USR-cloud Webpage Setting

USR-cloud software is a platform for communication between devices and PC software. The cloud software is mainly used for data transmission or monitoring remotely. This function only works in TCP client mode and supports the devices with firmware 3009 and later versions.

 Login link of USRIOT Cloud: http://console.usriot.com  Remote server address: console.usriot.com  Local port: The port of device, Remote port: Cloud software’s port  Device ID: It is assigned to device by cloud software  Communications Code: Password generated after adding the device to cloud software

The following is test account of USR-cloud:

Account:jin321_

Password:1987322

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4.4.5. Net Printing

Diagram 4.4.5-1 Net Printing

USR-TCP232-ED2 can connect with the serial printing, operating the printing via net, and change the serial printer into net printer, 3010 and above version supports this function.

Testing way:

1. Configuring module parameters:work mode:TCP server, local port:9100

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Diagram 4.4.5-2 Net Printing

4.4.6. Customize Webpage

USR-TCP232-ED2 supports customize webpage. The user can upgrade their webpage into USR-TCP232-ED2 via customize webpage. To be more convenient for user, we have prepared upgrade webpage package

Including webpage code(USR-TCP232-ED2 default webpage code and medium webpage code), webpage tools can be download.

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Diagram 4.4.6-1 Package Update

Steps to realize the customize webpage:

1. If you will customize webpage, please contact with the USR supports or the sale.

Modify the webpage code, open “UpgradeHtml.exe”, destination IP is the IP of USR-TCP232-ED2, the final name of file is “fs”, product choose the”M4”, then click the upgrade.

Diagram 4.4.6-2 Webpage Upgrade

4.4.7. Customize MAC

The unique MAC in the world for USR-TCP232-ED2, begin with D8B04, checked in the webpage. If the user have special demand, can set instant MAC via webpage. Please do not all F. restore to the factory setting and the MAC will be back to the factory MAC.

The below is MAC setting webpage.

Diagram 4.4.7-1 Customize MAC

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4.4.8. Restart Timeout

Restart timeout( no data restore) used to keep USR-TCP232-ED2 long time stable work. When net port can not receive the data, or have note receive data for long time, USR-TCP232-ED2 will restart in the time to prevent the communication from the abnormal. The time can be set via webpage and AT command, range from 60~65535s, default value is 3600s. When the time less than 60s, default is 0 which means that disable this function.

Diagram 4.4.8-1 Reset timeout

4.4.9. Clear Buffer Data

Before data connection, the data already received by serial port will be put in the buffer zone. The received buffer of serial is 2Kbyte. After connecting the TCP connection, clear the buffer data or not can be choose in the webpage,. The default value is not clear. If user enable the short connection, this function will do not work.

Diagram4.4.9-1 Clear Buffer Data

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4.4.10. Short Connection

This function is used to save the server resource and also used in the situation that several point to one. Short connection make sure all the connection can work, do not need any extra way to filtrate.

TCP short connection can used under the TCP client mode. Enable the short connection and send data, if there is no data received any data in serial port or the net port, it will disconnect.

Default disable, the interval time can be set, range from 2~255s, default 3s. setting diagram are as fellow:

Diagram 4.4.10-1 Short Connection

5. Parameters Setting

This character shows how to set USR-TCP232-ED2 parameters to realize the application.

The way to set USR-TCP232-ED2 including setup software, webpage setting and serial port setting.

Configuring steps:

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Modify the user name and password→ setting the access way to the IP address→ serial parameter→ the related parameters for working method.

To ensure the normal using of software, the following steps are necessary

1.When using setting software to setting parameter, USR-TCP232-ED2 and the PC of the setting software are in a LAN.

2.Close the antivirus software and firewall software.

3.Close the irrelevant network card.

5.1. Net Protocol Setting Parameters

5.1.1. Setup Software Setting Parameters

Click setup software and search USR-TCP232-ED2, searched all USR-TCP232-ED2. Display the device IP, device name, MAC and version for USR-TCP232-ED2.

Diagram 5.1.1-1 Searching

1. Click the USR-TCP232-ED2 you searched. At first you should check the password, if the password is correct,

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there will show the information for USR-TCP232-ED2, if the password is error, software will bond out the window that you should enter the username and password, the click enter. Both default username and password are admin. All the default parameters setting and there will not bond out username and password.

Diagram 5.1.1-2 Username and Password

2. Basic Parameters setting

Click Tidy Show and you will see all the basic parameters we can set, setting the parameters you need, and then

base save, and you can save the parameters you set, keep others in default.

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Diagram 5.1.1-3 Basic Parameters

 Websocket port: refer to the character “ webpage to serial”, this port is the webpage to serial port  Web port: the default port to access the webpage is 80.  Username: the username for USR-TCP232-ED2 to log in, the certification code to modify the parameters which can

prevent other user in the same LAN from changing USR-TCP232-ED2 parameters.

 Password: as the username, the password for USR-TCP232-ED2.  Device name:defaultUSR-TCP232-ED2 and can be modify  User MAC: the MAC address of the USR-TCP232-ED2  IP address type: static IP and DHCP  Module static IP: the static IP for USR-TCP232-ED2, keep it in the same LAN with your router.  Subnet mask: default is 255.255.255.0  Gateway: usually is the IP for router, setting correctly and user can communicating across the LAN and DDNS.

3. Port setting

Modify the parameters you need to setting then save them.

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Diagram 5.1.1-4 Serial Port Parameters

 Baud rate: serial port communication baud rate, can be the standard baud rate or customize.  Parity/ data/ stop:serial parameters: parity:none, odd, even, mark, space; data:5,6,7,8; stop:1,2.  Flow control: None/RS485/Hardware, Hardware means hardware flow control, none or RS485 means no flow

control.

 Work mode: TCP Server /TCP Client/ Httpd Client/UDP Client/UDP Server  Remote IP/remote port:the IP and port of server connected when USR-TCP232-ED2 work as a client including TCP

Client/ Httpd Client/UDP Client  Local port: the port that USR-TCP232-ED2 build connection, recommend set to be 0 when USR-TCP232-ED2 work

as TCP client, which means build in random connection.

 TCP server style: none  Modbus TCP: setting when using the modbus TCP to modbus RTU  Pack time and packlen: used in the serial port mapping  Synchronize baud rate(RFC2217)

4. Firmware upgrade:

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If the module firmware need to upgrade to the high vision,user can consult with sales to get the upgraded firmware and click the device, upgrade the vision. When you upgrade it, connect directly the device and PC and notice that PC upgrading module is forbidden.

Select the device, then choose upgrade the firmware.

Diagram 5.1.1-5 Firmware Upgrade

5.1.2. Setting Protocol Setting Parameters

Via the protocol, you can complete: search, set, save parameters, restore. For user to make their own setup parameters.

1. Net setting parameters steps

1 Built socket:

Build a UDP socket, remote IP :255.255.255.255, remote port:1901.

2 Setting command steps

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function

Package head

length (order~ parameters bit)

order

MAC (6 bits)

Username and password (12 bits)

parameters

Parity (sum)

FF0101---02

restore

FFxx02

[MAC]

[usrname] [password]

Read setting

FFxx03

[MAC]

[usrname] [password]

Storage setting

FFxx04

[MAC]

[usrname] [password]

basic setting

FFxx05

[MAC]

[usrname] [password]

basic parameters

serial port 0 setting

FFxx06

[MAC]

[usrname] [password]

serial port parameters

serial port 1 setting

FFxx07

[MAC]

[usrname] [password]

serial port parameters

serial port 2 setting

FFxx08

[MAC]

[usrname] [password]

serial port parameters

USR-cloud

0x10

[MAC]

[usrname] [password]

 Send searching order on the internet.  USR-TCP232-ED2 return the IP address and MAC.  Net port read the parameters of USR-TCP232-ED2.  Combine the MAC address the username, password and the parameter that need setting to be a setting

command.

 Send setting command.  USR-TCP232-ED2 return setting right.  Upper send storage setting command.  USR-TCP232-ED2 return setting right.  Restart command.  The return command of USR-TCP232-ED2 right (wrong).

2. Net setting command content

1 Command query

Note: the parity is sum parity: begin at the length add to the first digit of the parity. The sum is the value to parity, and reserve the lower bits.

Some command example

 Search command

Search command is: FF 01 01 02, parity sum 02 = 01 + 01.

 Restore command

FF 13 02 D8 B0 4C C0 0D 65 61 64 6D 69 6E 00 61 64 6D 69 6E 00 2D

parity sum:

2D = 13 + 02 + ... + 6E + 00

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Form 5.1.2-1 Command Query

Page 55

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Name

bits

E.g.

Instr

Uc Sequence Num

1xxFill what you read

Uc CRC

1xxFill what you read

Uc Version

1xxFill what you read

Uc Flags

IP address type 8this 0: DHCP: 1: static IP

Us Location URL Port

20 19

Fill what you read

Us HTTP Server Port

50 00

HTTP server port

Uc User Flag

Fill what you read

Ul Static IP

38 00 A8 C0

Static IP

Ul Gateway IP

01 00 A8 C0

Gateway

Ul Subnet Mask

00 FF FF FF

Subnet Mask

Uc Mod Name

55 53 52 2D 54 43 50 32 33 32 2D 45 00 00 00 00

Name for USR-TCP232-ED2 Username

61 64 6D 69 6E 00

username

password

61 64 6D 69 6E 00

password

Uc Net Send Time

Fill what you read

Ui Id201 00

device ID

Uc Id Type

Device ID type(0~3) 0:no use 1:send ID when connect 2:send ID when send data 3:both

ucUserMAC

FF FF FF FF FF FF

Device MAC address

ucReserved

Unused

Name

Bits

E.g.

Instr

Note: username and password are 5 bytes+00, fill the blanks with 0

 Read setting command

Send (16bits): FF 13 03 D8 B0 4C C0 0D 65 61 64 6D 69 6E 00 61 64 6D 69 6E 00 2E  Storage setting command

Send (16bits):FF 13 04 D8 B0 4C C0 0D 65 61 64 6D 69 6E 00 61 64 6D 69 6E 00 2F ③ detailed example for some command  Basic parameter setting command

e.g. FF 56 05 D8 B0 4C C0 0D 65 61 64 6D 69 6E 00 61 64 6D 69 6E 00 04 78 03 00 20 19 50 00 02 07 00 A8 C0 01 00 A8 C0 00 FF FF FF 55 53 52 2D 4B 33 00 00 00 00 00 00 00 00 00 00 61 64 6D 69 6E 00 61 64 6D 69 6E 00 02 01 00 00 D8 B0 4C C0 0D 65 10 0E 00 00 01 00 00 00 31  Port parameters command details

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Form 5.1.2-2 Basic Parameter Web Setting

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Ul Baud Rate

00 C2 01 00

Serial port baud rate

Uc Data Size

108Serial port data bits(0X05/0x06/0x07/0x08)

Uc Parity

Serial port parity 1: no, 2: odd, 3: even, 4: mark, 5: space

Uc Stop Bits

101Serial port stop(0x01/0x02)

Uc Flow Control

100Serial port flow control(0x01: no, 0x03: HW)

Ul Telnet Timeout

00 00 00 00

Time for net reconnection

Us Telnet Local Port

17 00

Local port

Us Telnet Remote Port

17 00

Remote port

Ui Telnet URL

31 39 32 2E 31 36 38 2E 30 2E 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Send the IP address or domain name in ASCII code, e.g:92.168.0.1 Ul Telnet IP Addr

00 00 00 00

No effect, set randomly

Uc Flags

Special selection Enable modbus function: 0x010(bit2) Enable similar RFC2217 function: 0x08(bit3) Enable USR-cloud function: 0x010(bit4)

Uc Work Mode

Work mode: 0: UDP, 1: TCP Client, 2: UDP Server, 3: TCP Server, 4: HTTPD Client

uiPackLen

C8 00 00 00

Serial packing length

ucPackTime

10ASerial packing time

ucTimeCount

191Fill what you read

TCP server type

11Fill what you read

ucReserved

random

Reserve to extend

name

bits

E.g.

Instr

TAG_STATUS

Packet_length

CMD_DISCOVER_TARGET

Board_type

Board_ID

Client_IP_address

5~8

C0 A8 00 07

device IP( higher in front )

E.g.

FF 52 06 D8 B0 4C C0 0D 65 61 64 6D 69 6E 00 61 64 6D 69 6E 00 00 C2 01 00 08 01 01 01 00 00 00 00 17 00 17 00 31 39 32 2E 31 36 38 2E 30 2E 32 30 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09 03 00 00 00 00 00 00 81 01 01 01 01 85

3. Net return the command

1 The result of search command return

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Form 5.1.2-3 Serial Port Parameters

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MAC_address

9~14

AC CF 23 20 FE 3D

device MAC( higher in front )

Firmware_version

15~18

D0 07 12 34

D0 07 : Firmware version( lower in front) 12 34: encryption version, others are not encrypted version; encrypted version can upgrade the encrypt program and no encrypted one should analyze the encryption then send.

Application_title

19~34

55 53 52 2D 54 43 50 32 33 32 2D 35 30 30 00 00

device name

checksum

(this value can be ignore) Check sum initial value is 0x00, reduce every bits of TAG_STATUS in order,till the last bit, and the result is checksum.

Form 5.1.2-7 Return Command e.g. search command returned result(36 bytes): FF 24 01 00 00 C0 A8 01 6B D8 B0 4C C0 0D 65 C3 0B 01 00 55 53 52 2D 4B 33 00 00 00 00 00 00 00 00 00 00 8E Parity is minus the sum parity, original value is 0x00, then minus every bytes one by one as below: 0x8E = 00 - FF - 24 - 01 - 00 - 4B - ... - 31 - 00 - 00

2 Restart command return result

Respond (4 bits): FF 01 02 4B if the password right 4B = 'K'

FF 01 02 45 username password wrong 45 ＝'E'

3 Read order command return result

Return all the parameters of USR-TCP232-ED2 net, totally 180 bytes without parity No protocol and return directly Returned content:180 bytes(basic parameters + serial parameters+ USR-cloud)

4 Storage setting command return result

Correct: FF 01 04 4B

5 Other return

Parity and return: return 'E' + right value: Correct perform: FF 01 CMD‘K’: Username password wrong return: FF 01 CMD‘P‘: Other wrong return: FF 01 CMD‘E’.

5.2. Webpage Setting Parameters

Open the browse and enter the IP of USR-TCP232-ED2,( default is 192.168.0.7) and user can open the

USR-TCP232-ED2 login windows. Enter username:admin, password:admin, then click enter and enter the webpage.

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Diagram 5.2-1 Username and Password

Click the English on the right up, change the language.

Diagram 5.2-2 Language

Note: default is English.

1. Current status webpage

 Module name: default is USR-TCP232-ED2  Firmware revision: the current version is 3016  Current IP address: default is static IP(192.168.0.7),here using DHCP to connect the PC.  NAC address  Run time: count time from power on.  TX count(ETH): the send number of the data from power on.  RX count(ETH):the received number of the data from power on.

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 Conn status(ETH): using in the debugging, check the connection.

2. Local IP config

Diagram 5.2-3 local IP

 IP type: DHCP or static IP  Static IP  Sub mask:subnet mask  Gateway:gateway address

3. TTL1

Diagram 5.2-4 Port 1 Parameters Configuring

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 Baud rate  Data  Parity  Stop bits  Flow mode: none/ hardware  Port mapping: UART packet time and length can be set here  Similar RFC2217  Enable UART heartbeat package  Work mode: TCP server,TCP client, UDP server,UDP client, HTTPD client  Remote server address  Local/ remote port number  Print:net printing function,default disable

4. Web to serial

Diagram 5.2-5 Webpage to Serial

5. Misc Config

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Diagram 5.2-6 Misc Config

 Module name:default:USR-TCP232-ED2 and can be change  Websocket port  Net port  MAC address( can be modify)  Username  Password  Buffer data before connected: whether to clear the buffer data.  Reset timeout: after set time interval, serial or net have not receive the data, USR-TCP232-ED2 will reset, and 0

means this function disable.

6. Reboot

Diagram 5.2-7 Reboot

Save all the parameters and click restart module to work.

5.3. AT Command

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5.3.1. Net AT Command

Net AT command, the command collection that delivery via net port and module under the command mode,

details are like the serial port command.

Net AT command mode: keep the module and PC in the same LAN, and the user can setting via AT command. Send www.usr.cn via UDP, if the module and PC in the same LAN, PC will receive the return data from

USR-TCP232-ED2, which means module have enter the net AT command and can configure it.

Under AT command mode, if there is no command for 30s, USR-TCP232-ED2 will exit the AT command.

5.3.2. Serial AT Command

AT+ command is the command collection that perform the command transport using UART and module under the

order mode. Later we will interpret the type in detail.

Powered successfully, we can setting the module with UART. The default UART port parameters of the module are: baud rate1152000, no parity, data 8 and stop 1. Instr AT command test tools.UART interface commend to use secureCRT software tool or USR pro APP. Below are using

the secureCRT with UART to perform.

From transparent transport to order mode need two step as below:

 Fill “+++”in the UART. After the module receive the “++++”,it will send a “a” to confirm;  Fill the confirming “a” in the UART, after the module receive and send “+ok”, enter the command mode.

Diagram 5.3.1-1 Enter the AT Command

Instr: if no feedback after fill “++++”and “a”, as the above.

Fill “+++”and “a” need to achieve in the time to reduce the chance of entering command mode while working

normally accidentally. Detail requirement are as fellows.

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Error code

Instr

-1

Invalid format

-2

Invalid order

-3

Invalid operator

-4

Invalid parameter

-5

Not allow

Num

command

Instr

1EEnable/disable the echo function

Diagram 5.3.1-2 Time Tree

Time requirement: T1>the interval of serial port package T2<300ms T3<300ms T5<3s

The order change into temporary command mode from transparent transport mode:

1. Serial mode device send “+++”to module continuously. The module receive and send “a” back. Before sending“+++”is the packaging time and can not send any data.

2. After receive “a” feedback a “a”in 3s.

3. After the module receive “a, send “ok”to the device, and enter “AT”command

4. After the device receive “+ok” and know the module enter the AT command mode, then send AT command.

The order change into net transparent transport from AT command mode:

1.Serial device send “AT+ENTM”to module.

2.After the module receive the command, feedback “+ok”, then back to the previous working mode.

5.3.3. Error AT Command

Form 5.3.3-1 Error Code List

5.3.4. AT Command

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2Zrestart module

VER

Query the vision

ENTM

Exit AT command mode and enter the transparent transmission

MAC

Query module MAC address

RELD

Reset default settings

WANN

Setting/ query WAN port parameters

DNS

Setting/ query DNS server address

USERMAC

Setting customize MAC

WEBU

Setting/ query username and password

WEBPORT

Setting/ query webpage port

Setting/query search key world

PLANG

Setting/query webpage language

UARTN

Setting/ query serial port N parameters

UARTTLN

Setting/ query serial port N packing parameters

SOCKMN

Setting/ query N serial port socket M parameters

SOCKLKMN

Query the connection status

WEBSOCKPORT1

Setting/ query websocket port number

REGENN

Setting/ query registration package N type

REGTCPN

Setting/ query registration package N position

REGUSRN

Setting/ query the content of registration package that customized, support ASCII

REGCLOUDN

Setting/ query USR-cloud parameters

HTPTPN

Setting/ query in httpd client mode, the asking way of the http

HTPURLN

Setting/ query the URL in httpd client mode

HTPHEADN

Setting/ query the package head in httpd client

HTPCHDN

Setting/ query HTP remove the package head

HEARTENN

Setting/ query heartbeat package enable

HEARTTPN

Setting/ query method of the heartbeat package send

HEARTTMN

Setting/ query the heartbeat package time

HEARTDTN

Setting/ query customize heartbeat package, supports ASCII

PDTIME

Query the product time

MID

Setting/ query module name

USERMAC

Setting customize MAC

RECENN

Setting/ query RFC2217 enable

SOCKSLN

Setting/ query short connection function

SHORTON

Setting/ query short connection time

RSTIM

Setting/ query timeout reset time

UARTCLBUF

Setting/ query clear serial port cache before module build connection function enable/disable

SOCKTONN

Setting/query timeout reconnection time

MODTCPN

Setting/query modbus TCP function

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MODPOLLN

Setting/query modbus polling function

MODTON

Setting/query modbus polling time 42

NETPRN

Setting/query net printing function

UDPONN

Setting/query not detect the remote IP and port under UDP mode

CFGTF

Setting current parameters saved to be the default parameters

PINGN

Setting ping function remote IP and have a ping

HEARTUSERN

Setting/query port N customize heartbeat package, supports ASCII and HEX

REGUSERN

Setting/query port N customize registration package, supports ASCII and HEX

5.3.5. AT Command Details

1. AT+E

 Function: setting/query module AT command echo setting  Format:

 query

AT+E <CR> <CR><LF>+OK=<on/off><CR><LF>

 setting

AT+E=<on/off><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 On: enable echo, echo the enter command under AT command  Off: under the AT command, enter command do not echo

E.g. : AT+E=0N

USR-TCP232-ED2 User Manual www.usriot.com

Form 5.3.4-1 AT Command

2. AT+Z

 Function: restart module  Format:

 setting

AT+Z<CR>

<CR><LF>+OK<CR><LF> Parameters: none Note: perform this function, module restart

3. AT+VER

 Function: setting/query module firmware version  Format:

 query

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 Parameters:

4. AT+ENTM

 Function: exit AT command mode and enter the transparent transmission  Format:

 Parameters: none

5. AT+MAC

 Function: query module MAC  Format:

 Parameters:

USR-TCP232-ED2 User Manual www.usriot.com

AT+VER<CR>

 ver:setting/query module firmware version

 setting

AT+ENTM<CR>

Perform this function, module enter the transparent transmission from AT command mode

 query

AT+MAC<CR>

 mac: MAC of the module(for example 01020304050A)；

6. AT+RELD

 Function: restore module setting to default factory setting  Format:

 Parameters: none

7. AT+WANN

 Function: setting/query IP(DHCP/STATIC)of the WAN that module accessed；  Format:

 Parameters:

 setting

AT+RELD<CR>

 query

AT+WANN<CR>

<CR><LF>+OK=<mode,address,mask,gateway><CR><LF>  setting

AT+WANN=<mode,address,mask,gateway><CR>

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 mode：mode of the net IP

 static：static IP

 DHCP：automatically IP(address,mask,gateway please ignore them)  address： IP address  mask：subnet masks  gateway：gateway address

E.g. : AT+WANN=static,192.168.0.7,255.255.255.0,192.168.0.1

8. AT+DNS

 Function: setting/query the server address of the DNS  Format:

 query

AT+DNS<CR> <CR><LF>+OK=< address ><CR><LF>

 setting

AT+DNS=< address ><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 address： DNS server address

E.g. : AT+DNS=208.67.222.222

9. AT+WEBU

 Function: setting/query login username and password  Format:

 query

 setting

 Parameters:

 username：username, at most for 5 bytes, please be sure no black  password：pass word, at most for 5 bytes

E.g. : AT+WEBU=admin,admin

10. AT+WEBPORT

 Function: setting/query the port of the module Web Server ；  Format:

 query

AT+WEBU<CR> <CR><LF>+OK=<username,password><CR><LF>

AT+WEBU<CR> <CR><LF>+OK =<username,password><CR><LF>

AT+WEBPORT<CR> <CR><LF>+OK=<port><CR><LF>

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 setting

AT+WEBPORT<CR> <CR><LF>+OK =<port><CR><LF>

 Parameters:

 port：the port of the build-in webserver of module, default is 80.

E.g. : AT+WEBPORT=80

11. AT+SEARCH

 Function: setting/query the searching port and keyword of the module in LAN  Format:

 query

AT+SEARCH<CR> <CR><LF>+OK=<port,keywords><CR><LF>

 setting

AT+SEARCH =<port,keywords><CR><LF> <CR><LF>+OK<CR><LF>

 Parameters:

 port：search port of the module; default: 48899  keywords：searching keyword of the module.default: www.usr.cn (at most for 20 bytes length)

E.g. : AT+SEARCH=48899, www.usr.cn

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12. AT+PLANG

 Function: setting/query module net language version for login webpage.  Format:

 Parameters:

E.g. : AT+PLANG=CN

13. AT+UARTN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query UARTN interface parameters  Format:

 query

AT+ PLANG <CR> <CR><LF>+OK=<language><CR><LF>

 setting

AT+PLANG =<language><CR> <CR><LF>+OK<CR><LF>

 language：

 cn: default for Chinese  en: default for English

 query ：

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AT+UARTN<CR> <CR><LF>+OK=<baudrate,data_bits,stop_bit,parity,flowctrl ><CR><LF>

 setting ：

AT+UARTN=<baudrate,data_bits,stop_bit,parity,flowctrl ><CR><LF> <CR><LF>+OK<CR><LF>

 Parameters:

 baudrate：baud rate

 9600,19200,38400,57600,115200,230400,380400,460800(details according to module

customize, module can supports random baud rate. )

 data_bits：data: 5、6、7、8  stop_bits：stop 1、2( details refer to the module supporting  parity：parity

 NONE

 EVEN

 ODD

 MARK

 SPACE  flowctrl：hardware flow control(CTS RTS)

 NFC：no hardware flow control

 FCH：hardware flow control

 FCR：software flow control

E.g. : AT+UART=115200,8,1,NONE,NFC

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14. AT+UARTTLN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query the customize Packaging mechanism  Format:

 query

 setting

 Parameters:

 time：bytes interval：0～255 ms；.  length：longest bytes for data package:0～1460 byte.

E.g. : AT+UARTTL1=0,0

15. AT+SOCKMN

 (M: the port number of the socket, A~H. N：serial port number, 1~8. single socket please ignore the MN)  Function: setting/query web protocol parameters  Format:

AT+ UARTTLN<CR> <CR><LF>+OK=<time,length><CR><LF>

AT+ UARTTLN=<time,length> <CR> <CR><LF>+OK<CR><LF>

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 query

AT+SOCKMN<CR> <CR><LF>+OK=<protocol,IP,port ><CR><LF>

 setting

AT+SOCKMN=< protocol,IP,port ><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 Protocol：protocol type

 TCPS TCP server

 TCPC TCP Client

 UDPS UDP server

 UDPC UDP client

 HTPC Httpd client  IP：if the module work in client mode, the IP address is server IP.  Port: protocol port, The decimal system, less than 65535

E.g. : AT+SOCKA1=TCPC,192.168.0.201,8234

16. AT+SOCKLKMN

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 (M: the port number of the socket, A~H. N：serial port number, 1~8. single socket please ignore the MN)  Function: query if there is TCP connection

 query

 Parameters:

 sta.: please refer to 2.2.3 Web Server

17. AT+WEBSOCKPORT1

 Function: setting/query port number Websocket  Format:

 query

 setting

 Parameters:

 Port:the port listened by Websocket

E.g. : AT+WEBSOCKPORT1=123

AT+ SOCKLKMN<CR> <CR><LF>+OK=<sta><CR><LF>

AT+ WEBSOCKPORT1<CR> <CR><LF>+OK=<port><CR><LF>

AT+ WEBSOCKPORT1=<port> <CR> <CR><LF>+OK<CR><LF>

18. AT+REGENN

 (N：the number of the port, 1~8. for single port socket, ignore the N)

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 Function: setting query registration package mechanism  Format:

 query

 setting

 Parameters:

 status：

E.g. : AT+REGEN1=USR

19. AT+REGTCPN

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AT+REGENN <CR> <CR><LF>+OK=<status><CR><LF>

AT+REGENN =<status><CR> <CR><LF>+OK<CR><LF>

 USR：user defined registration package, at most for 20 bytes  MAC：MAC do as a registration package  CLOUD：disable registration function  OFF: disable registration function

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting query under TCP client mode, registration package perform mechanism  Format:

 query

 setting

 Parameters:

 status：

E.g. : AT+REGTCP1=all

20. AT+REGUSRN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query content of the defined registration package  Format:

 query

 setting

AT+REGTCPN<CR> <CR><LF>+OK=< status><CR><LF>

AT+REGTCPN =< status><CR> <CR><LF>+OK<CR><LF>

 First：send registration st first time  Every：data carry registration package  ALL: both

AT+ REGUSRN<CR> <CR><LF>+OK=<data><CR><LF>

AT+ REGUSRN =<data><CR>

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 Parameters:

 data： registration content, at most for 40 bytes

E.g. : AT+REGUSR1=12345

21. AT+REGCLOUDN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query the device ID and password of the USR-cloud  Format:

 query

AT+REGCLOUDN<CR> <CR><LF>+OK=<ID,CODE><CR><LF>

 setting

AT+REGCLOUDN=<ID,CODE><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 ID：device ID  CODE: communication password

E.g. : AT+REGCLOUD1=12345678901234567890, 12345786

22. AT+HTPTPN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query the questing way under the HTTPD Client mode  Format:

 setting

 Parameters:

 status：

E.g. : AT+HTPTP1=GET

23. AT+HTPURLN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query HTTPD Client 的 URL.  Format:

 query

query AT+HTPTPN<CR> <CR><LF>+OK=< status><CR><LF>

AT+HTPTPN=< status><CR> <CR><LF>+OK<CR><LF>

 GET  POST

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AT+HTPURLN<CR> <CR><LF>+OK=<URL><CR><LF>

 setting

AT+HTPURLN =<URL><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 URL：under the HTTPD Client, URL of the GET or POST

E.g. : AT+HTPURL1=1/PHP

24. AT+HTPHEADN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query the header of the HTTP protocol  Format:

 query

AT+HTPHEADN<CR> <CR><LF>+OK =<string><CR><LF>

 setting

AT+HTPHEADN =<string><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 string：the defined header information, at most for 180 bytes

Note: every enter using the <<CRLR>> to instead There is a <<CRLF>> fellow the HTTPD, how many HTTPD and how many <<CRLF>>.

E.g. : AT+HTPHEAD=Accept:text<<CRLF>>

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25. AT+HTPCHDN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query filter the header of the HTTP return information.  Format:

 query ：

AT+ HTPCHDN <CR> <CR><LF>+OK=<sta><CR><LF>

 setting ：

AT+ HTPCHDN =<sta><CR> <CR><LF>+OK<CR><LF>

 Parameters: Sta：

 ON：enable  OFF：disable

E.g. :AT+HTPCHD1=ON

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26.

AT+HEARTENN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query enable heartbeat package or not  Format:

 query ：

 setting ：

 Parameters:

 status：

E.g. : AT+HEARTEN1=ON

27. AT+HEARTTPN

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AT+ HEARTENN <CR> <CR><LF>+OK=< status><CR><LF>

AT+ HEARTENN =< status><CR> <CR><LF>+OK<CR><LF>

 ON:enable heartbeat package  Off：disable heartbeat package

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query heartbeat package send method  Format:

 query ：

 setting ：

 Parameters:  status：

E.g. : AT+HEARTTP=NET

28.

AT+HEARTTMN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query heartbeat package time  Format:

 query

 setting

AT+ HEARTTP <CR> <CR><LF>+OK=< type><CR><LF>

AT+ HEARTTP =< type ><CR> <CR><LF>+OK<CR><LF>

 NET: send heartbeat package to net  COM：send heartbeat package to serial

：

AT+ HEARTTM <CR> <CR><LF>+OK=< time><CR><LF>

：

AT+ HEARTTM =< time><CR>

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 Parameters:

 Time：default 30s, range from 1 to 65535s.

E.g. : AT+HEARTTM=30

29. AT+HEARTDTN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting query the content of the defined heartbeat package  Format:

 query ：

AT+ HEARTDT <CR> <CR><LF>+OK=< data><CR><LF>

 setting ：

AT+ HEARTDT =< data><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 data：ASCII code in 40 bytes

E.g. :AT+HEARTDT=www.usr.cn.

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30. AT+PDTIME

 Function: query product time  Format:

 Parameters:

31. AT+MID

 Function: setting/query module name  Format:

 Parameters:

 query ：

AT+PDTIME<CR> <CR><LF>+OK=<time><CR><LF>

 Time: product time, e.g. 2016-10-18 11:20:02

 query ：

AT+ MID <CR> <CR><LF>+OK=< name ><CR><LF>

 setting ：

AT+ MID =< name ><CR> <CR><LF>+OK<CR><LF>

 name：module name, at most for 15 bytes, please be not blank

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E.g. :AT+ MID =USR- tcp232-410 s

32. AT+USERMAC

 Function: setting defined mac  Format:

 setting ：

AT+ USERMAC =< MAC ><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 MAC：MAC address of the module (e.g. 002233445566)

E.g.: AT+USERMAC=002233445566

33. AT+RFCENN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting enable RFC2217  Format:

 query ：

AT+RFCENN<CR> <CR><LF>+OK=<status><CR><LF>

 setting ：

AT+ RFCENN =<status><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 ON：enable RFC2217  OFF：disable RFC2217

E.g. : AT+RFCEN=ON

USR-TCP232-ED2 User Manual www.usriot.com

34. AT +SOCKSLN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting short connection function  Format:

 query ：

AT+ SOCKSLN <CR> <CR><LF>+OK=<sta><CR><LF>

 setting ：

AT+ SOCKSLN =<sta><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 sta：status

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 ON:enable the short connection function  OFF: disable the short connection function

E.g. : AT+ SOCKSL =ON

35. AT+ SHORTON

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting short connection time  Format:

 query ：

 setting ：

 Parameters:

 time：short connection time 2-255s

e.g.: AT+ SHORTO =3

USR-TCP232-ED2 User Manual www.usriot.com

AT+ SHORTON <CR> <CR><LF>+OK=<time><CR><LF>

AT+ SHORTON =<time><CR> <CR><LF>+OK<CR><LF>

36. AT+RSTIM

 Function: setting/query timeout restart  Format:

 query ：

 setting ：

 Parameters:

 time：short connection time：0, 60-65535s, less than 60s:disable

E.g. : AT+ RSTIM =3600

37. AT+UARTCLBUF

 Function: setting/query module clear serial port buffer  Format:

 query ：

 setting ：

 Parameters:

AT+ RSTIM <CR> <CR><LF>+OK=<time><CR><LF>

AT+ RSTIM =<time><CR> <CR><LF>+OK<CR><LF>

AT+ UARTCLBUF <CR> <CR><LF>+OK=<sta><CR><LF>

AT+ UARTCLBUF =<sta><CR> <CR><LF>+OK<CR><LF>

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 sta  ON:clear  OFF:disable this function

E.g.: AT+ UARTCLBUF =ON

38. AT+SOCKTONN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: setting/query reconnect time  Format:

 query ：

 setting ：

 Parameters:

 time：timeout reconnection time: 1~99999s, default: 86400s

E.g. :AT+ SOCKTONN =86400

USR-TCP232-ED2 User Manual www.usriot.com

AT+ SOCKTONN <CR> <CR><LF>+OK=<time><CR><LF>

AT+ SOCKTONN =<time><CR> <CR><LF>+OK<CR><LF>

39. AT+MODTCPN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting Modbus TCP function  Format:

 query ：

 setting ：

 Parameters:

 sta：  ON：enable modbus TCP  OFF：disable modbus TCP

E.g.: AT+ MODTCP1 =ON

40. AT+MODPOLLN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting Modbus polling  Format:

 query ：

AT+ MODTCPN <CR> <CR><LF>+OK=<sta><CR><LF>

AT+ MODTCPN =<sta><CR> <CR><LF>+OK<CR><LF>

AT+ MODPOLLN <CR>

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 setting ：

 Parameters:

 sta  ON：enable Modbus polling  OFF：disable Modbus polling

E.g. : AT+ MODPOLL1 =ON

41. AT+MODTON

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting Modbus polling time  Format:

 query ：

 setting ：

 Parameters:

 time：modbus polling time：200~9999s, default: 200s

E.g.: AT+ MODTO1=200

USR-TCP232-ED2 User Manual www.usriot.com

AT+ MODPOLLN =<sta><CR> <CR><LF>+OK<CR><LF>

AT+ MODTON <CR> <CR><LF>+OK=<time><CR><LF>

AT+ MODTON =<time><CR> <CR><LF>+OK<CR><LF>

42. AT+NETPRN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting net printing function  Format:

 query ：

AT+ NETPRN <CR> <CR><LF>+OK=<sta><CR><LF>

 setting ：

AT+ NETPRN =<sta><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 sta  ON：enable net printing  OFF：disable net printing

E.g .: AT+ NETPR1=ON

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43.

AT+UDPONN

 (N：the number of the port, 1~8. for single port socket, ignore the N)  Function: query /setting UDP do not detect the remote IP and port  Format:

 query ：

 setting ：

 Parameters:

 Sta  ON：enable do not detect the remote IP and port under UDP mode  OFF：disable do not detect the remote IP and port under UDP mode

E.g. : AT+ UDPON1=ON

USR-TCP232-ED2 User Manual www.usriot.com

AT+ UDPONN <CR> <CR><LF>+OK=<sta><CR><LF>

AT+ UDPONN =<sta><CR> <CR><LF>+OK<CR><LF>

44. AT+CFGTF

 Function: setting to save the current parameter into default parameter  Format:

 setting ：

AT+ CFGTF <CR> <CR><LF>+OK=<sta><CR><LF>

 Parameters:

 Sta：saved：have saved the parameters

E.g. : AT+ CFGTF

45.

AT+PINGN

 Function: setting ping the remote IP and have a ping.  Format:

 setting

AT+ PINGN =<ip><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 ip：remote IP or domain name, at most for 30 bytes.

E.g.: AT+PING1=www.baidu.com.

：

46.

AT+HEARTUSERN

 Function: query /setting the defined heartbeat package of the port N, supports ASCII and HEX

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 Format:

 query ：

AT+ HEARTUSERN <CR> <CR><LF>+OK=< data,type ><CR><LF>

 setting ：

AT+ HEARTUSERN =< data,type ><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 data：content of the defined heartbeat package , ASCII can be 40 bytes and HEX can be 80 bytes at

most  type：heartbeat package content enter format: ASCII or HEX

E.g.: AT+ HEARTUSERN = 01020305,HEX

47. AT+REGUSERN

 Function: query /setting the defined registration package of the port N, supports ASCII and HEX  Format:

 query ：

AT+ REGUSERN <CR> <CR><LF>+OK=< data,type ><CR><LF>

 setting ：

AT+ REGUSERN =< data,type ><CR> <CR><LF>+OK<CR><LF>

 Parameters:

 data：defined registration package content,ASCII can be 40 bytes and HEX can be 80 bytes at most  type：registration package content enter format: ASCII or HEX

E.g. :AT+ REGUSERN = 01020305,HEX

USR-TCP232-ED2 User Manual www.usriot.com

6. Contact us

Company: Jinan USR IOT Technology Co., Ltd Address: Floor 11,Building1,No.1166 Xinluo Street,Gaoxin Distric,Jinan,Shandong,250101 China Tel: 86-531-55507297 86-531-88826739-803 Web: http://www.usriot.com/ Skype: lisausr Support: http://h.usriot.com/index.php?c=frontTicket&m=sign Email: [email protected] [email protected]

7. Disclaimer

The document provides information about USR-TCP232-ED2 module, it doesn ’ t grant any license to the

intellectual property rights. Except the responsibility declared in the product sale clause, USR does not assure any other

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USR-TCP232-ED2 User Manual www.usriot.com

vision

Modify instr

Time

V1.0.1

The first one

2016-10-17

V1.1.1

Add AT command, restart timeout and short time connection

2017-05-03

V1.1.2

Modify the serial port instr in the function feature, change into 3 TTL work independently

2019-06-03

responsibilities. In addition, USR does not make any warranties for the sale and use of this product, including the suitability of products for a particular purpose, merchant ability or fitness for any patent, copyright or other intellectual property infringement. USR may make changes to specifications and products description without notice.

8. Modified History

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