Usr USR-TCP232- E, USR-TCP232- ED, USR-TCP232-400, USR-TCP232-401, USR-TCP232-500 User Manual

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Multifunctional serial to Ethernet module user manual http://en.usr.cn

Multifunctional

Multifunctional S

(USR-TCP232- E ) (USR-TCP232-ED) (USR-TCP232- 400 ) (USR-TCP232-401) (USR-TCP232- 500 ) (USR-TCP232-504)

（ USR-TCP232-52E)(USR-TCP232-52PE)

erial

S erial

erial to

thernet

to E

E thernet

thernet converter

converter

File version: V1. 3.2

Jinan USR IOT Technology Co., Ltd. works on LAN and WAN and wireless for MCU to

Ethernet Solutions, Ethernet, WIFI, GPRS, Zigbee and Wireless modules, we can supply

custom design for those usage, look ing forward to cooperat e with you.

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Contents

Multifunctional S erial to E thernet converter ..................................................................................... 1

1. Introduction ................................................................................................................................... 5

1.1. Overview ........................................................................................................................... 5

1.2 Features ............................................................................................................................... 5

1.2. Applications ....................................................................................................................... 6

1.3. Order information .............................................................................................................. 6

1.4. Electrical c haracteristics .................................................................................................... 7

2. Work Mode ................................................................................................................................... 8

2.1. Block diagram .................................................................................................................... 8

2.2. UDP mode .......................................................................................................................... 8

2.3. TCP Client mode ............................................................................................................... 9

2.4. UDP Server mode ............................................................................................................ 10

2.5. TCP Server mode ............................................................................................................. 11

2.6. Httpd Client mode ............................................................................................................ 12

2.7. TCP Auto mode ............................................................................................................... 14

2.8. WEB to Serial mode ........................................................................................................ 16

3. Hardware interface: ..................................................................................................................... 17

3.1. USR-TCP232-E ............................................................................................................... 17

3.1.1. Hardware ............................................................................................................... 17

3.1.2. Power ..................................................................................................................... 17

3.1.3. LED status ............................................................................................................. 18

3.1.4. Serial(TTL) interface ............................................................................................. 18

3.2. USR-TCP232-ED ............................................................................................................ 18

3.2.1. Hardware ............................................................................................................... 18

3.2.2. Power ..................................................................................................................... 19

3.2.3. LED status ............................................................................................................. 19

3.2.4. Serial(TTL) interface ............................................................................................. 20

3.3. USR-TCP232-400 ............................................................................................................ 22

3.3.1. Hardware ............................................................................................................... 22

3.3.2. Power ..................................................................................................................... 22

3.3.3. LED status ............................................................................................................. 23

3.3.4. RS232 interface ..................................................................................................... 23

3.3.5. RS485 /RS422 interface .................................................................................... 24

3.4. USR-TCP232-401 ............................................................................................................ 24

3.4.1. Hardware ............................................................................................................... 24

3.4.2. Power ..................................................................................................................... 25

3.4.3. LED status ............................................................................................................. 25

3.4.4. RS232 interface ..................................................................................................... 25

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3.4.5. RS485 interface ................................................................................................. 26

3.5. USR-TCP232-500 ............................................................................................................ 26

3.5.1. Hardware ............................................................................................................... 26

3.5.2. Power ..................................................................................................................... 27

3.5.3. LED status ............................................................................................................. 27

3.5.4. RS232 interface ..................................................................................................... 27

3.5.5. RS485 /RS422 interface .................................................................................... 28

3.6. USR-TCP232-504 ............................................................................................................ 29

3.6.1. Hardware ............................................................................................................... 29

3.6.2. Power ..................................................................................................................... 29

3.6.3. LED status ............................................................................................................. 30

3.6.4. RS485 interface ................................................................................................. 30

3.7. USR-TCP232-52E ........................................................................................................... 30

3.7.1. Hardware ............................................................................................................... 30

3.7.2. Power ..................................................................................................................... 31

3.7.3. LED status ............................................................................................................. 33

3.7.4. RS232 interface ..................................................................................................... 33

3.7.5. RS485 interface ................................................................................................. 33

3.7.6. RJ45 interface .................................................................................................... 34

3.8. USR-TCP232-52PE ......................................................................................................... 34

3.8.1. Hardware ............................................................................................................... 34

3.8.2. Power ..................................................................................................................... 34

3.8.3. LED status ............................................................................................................. 34

3.8.4. RS232 interface ..................................................................................................... 35

3.8.5. RS485 interface ................................................................................................. 35

3.8.6. RJ45 interface .................................................................................................... 35

3.9. RJ45 interface .................................................................................................................. 35

3.10. Reload ............................................................................................................................ 36

4. Paramters configuration .............................................................................................................. 36

4.1. Web page ......................................................................................................................... 36

4.2. Serial port ........................................................................................................................ 36

4.3. network command(setup software) .................................................................................. 37

5. Specific functions ........................................................................................................................ 38

5.1. Hardware flow control ..................................................................................................... 38

5.2. User MAC address ........................................................................................................... 39

5.3. Firmupdate ....................................................................................................................... 40

6. Module USES ............................................................................................................................. 42

6.1. Hardware connection ....................................................................................................... 42

6.2. Login ................................................................................................................................ 43

6.3. Default working mode test ............................................................................................... 45

6.4. Common questions .......................................................................................................... 46

6.4.1. Work across network segment ............................................................................... 46

6.4.2. Ping is OK but can not open web pages ................................................................ 47

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6.4.3. After firm update, can not open web page ............................................................. 47

6.4.4. When connection established, server received serval chars .................................. 47

6.4.5. Every serval seconds, module reconnect ............................................................... 48

7. C ontact us .................................................................................................................................... 49

8. Modified history .......................................................................................................................... 50

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Introduction

1. Introduction

Introduction

1.1.

Overview

1.1.

Overview

1.1.

1.1. Overview

Overview

The USR-TCP232- E45 is an intelligent plug-and-play RS232 to Ethernet adapter that

enables any device or machine with a serial port, to become Ethernet network and

Internet enabled. Go from Ethernet to serial with the USR-TCP232- E45 . It features a

powerful built-in device server, so you can access your serial device from anywhere in the

world over internet! The USR-TCP232- E45 is easily configured via Ethernet, and can

also be set up through the serial port and web pages .

We Provide Network products and the best service to our customers.

• Chips • Modules • Software • Products

1.2

Features

1.2

Features

1.2

1.2 Features

Features

1. New Cortex-M3 kernel, industrial working temperature range, elaborate optimization

TCPIP protocol stack, stable and reliable.

2. A RS232 port, can set COM port and working mode independently, work

independently, support RTS/CTS hardware flow control.

3. A RS232/RS485 compatible port, auto adaptation.

4. RS232 and RS485 can be used together, work independently, distinguish the

connected serial port via port number.

5. Auto-MDI/MIDX function, discretionarily connect cross-over or direct network cable,

automatic switching.

6. Support TCP Server, TCP Client, UDP, UDP Server, HTTPD Client various of work

modes.

7. Support virtual serial work way, provide corresponding software.

8. Serial port highest baud rate from 110bps to 102 4 0 00 bps(COM0 only max

256000bps) .

9. wide voltage input, more applications.

10. Support DHCP automatically access IP, can inquire the facility within network

through the UDP broadcast protocol.

11. Supply the protocol for VIP customers, can integrate parameter seting function to

users ’ software applications.

12. Provide PC TCP/IP SOCKET programming example, VB , C++ , Delphi , Android , IOS.

13. The built-in web page, also parameter setting via web, can customize web pages for

users.

14. Can also set via UDP, provide the set up protocol and software source code.

15. Reload button, a key restore default Settings.

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16. RJ45 status indicator light, RJ45 interface built-in isolation transformer, 2 KV

isolation.

17. The global only MAC address bought from IEEE, the user can define MAC address

(please state when you make order) .

18. Support upgrade firmware via network.

19. Support IP and domain name at the same time

20. Support up to 4 link from client when act as TCP Server, send and receive data with

id.

21. Can modify MAC address you wanted.

22. Can modify http server port for module built-in http server.

23. Support Keepalive.

1.2.

Applications

1.2.

Applications

1.2.

1.2. Applications

Applications

 Fire and Security Panels

 Vending Machines

 Point of Sale T erminals

 Remote equipment management

 IT management services

 Access Control

 Industrial Control

 Home Automation

 Instrumentation

 Building Control

 Power Management

1.3.

Order

1.3.

Order

1.3.

1.3. Order

Order information

Type

Type Part

Serial to Ethernet Converter USR-TCP232- E 2 * TTL 232

Serial to Ethernet Converter USR-TCP232- ED 3 * TTL232

Serial to Ethernet Converter USR-TCP232- 400 1 * RS232 , 1 * RS485 /RS422

Serial to Ethernet Converter USR-TCP232- 401 1 * RS232 , 1 * RS485

Serial to Ethernet Converter USR-TCP232- 500 2 * RS232 , 1 * RS485 /RS422

Serial to Ethernet Converter USR-TCP232- 504 3 * RS485

Serial to Ethernet Converter USR-TCP232- 52E 2 * RS232, 1 * RS485, 2 * RJ45

Serial to Ethernet Converter USR-TCP232- 52PE 2 * RS232, 1 * RS485, 2 * RJ45(POE)

Note:

For webpages: PORT0, PORT1 and PORT2, represent below:

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information

Part

Numbers

Part

Numbers

Part Numbers

Numbers Electric

Diagram 1 - 1 Order information

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Electric

Electric interface

interface

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TCP232-E: PORT0 represent UART0, PORT1 represent UART1, PORT2 not available in

hardware;

TCP232-ED: PORT0 represent UART0, PORT1 represent UART1, PORT2 represent

UART2;

TCP232-400/401: PORT0 represent RS232 ， PORT1 represent RS485 ， PORT2 not available; TCP232-500: PORT0 and PORT1 represent RS232_0 and RS232_1 ， PORT2 represent

RS485/422;

TCP232-504: PORT0, PORT1, PORT2 represent RS485_0 、 RS485_1 and RS485_2; TCP232-52E/52PE:PORT0 and PORT1 represent RS232_0 and RS232_1 ， PORT2 represent

RS485

1.4.

Electrical

1.4.

Electrical

1.4.

1.4. Electrical

Electrical c

DC Power Supply Voltage : Two DC Voltage can be choose （ for USR-TCP232-E, others see Hard interface ）

VCC ： type: 3.3V , min: 3.15 ， max: 3.45 V VDD ： type:

Operating supply current : Max: 180 MA

Operating Temperature : -40~85 ° C

Storage temperature : -40~85 ° C

haracteristics

c haracteristics

haracteristics

5V,

min: 4.5V ， max: 5.5V

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Work

2. Work

Work Mode

2.1.

Block

2.1.

Block

2.1.

2.1. Block

Block diagram

Take USR-TCP232-E for example ， show demo application of module USR-TCP232-E.

Mode

diagram

power

TTL

User

device

Diagram 2 - 1 USR-TCP232-E application demo

2.2.

UDP

2.2.

UDP

2.2.

2.2. UDP

UDP mode

When in UDP mode, after power on, module listen on specific port.

mode

1. Module listen a UDP port

2. Data transfer With out connection, only data packet

Serial to Ethernet

Converter

USR

TCP 232

- E

1 . PC listen a UDP port

MCU

AVR

PIC

ARM

AVR

PIC

ARM

AVR

PIC

ARM

232

Ethernet

Module work at UDP mode

Diagram 2 - 2 UDP mode

When received data from this udp port, send it to serial port;otherwise, when data is received

from serial port, send it to ethernet.

The assist software can be download from link below:

http://www.usr.so/Download/121.html

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Diagram 2 - 3 UDP mode communication test

Note:

1) local port and remote port can be different.

2) Max UDP send length(ethernet to serial) is 1472 bytes. If you want to send more than 1472

Bytes, please div it into shorter packet.

2.3.

TCP

2.3.

TCP

2.3.

2.3. TCP

TCP Client

Open web pages and config module to

Telent Mode: TCP Client

Remote port number: 23

Telnet Server Addr: 192.168.0.131

Client

Client mode

mode

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Use USR-TCP232-Test,

Diagram 2 - 4 TCP Client mode

Diagram 2 - 5 TCP Client communication test

2.4.

UDP

2.4.

UDP

2.4.

2.4. UDP

UDP Server

Like the socket UDP server in pc API. Many to one data transfer supported, the data

from uart/232/485 part will be transformed to the last UDP packet’s address.

Here show 2 UDP client communicate with server, server send data to the last client

communicates with it.

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Server

Server mode

mode

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Diagram 2 - 6 Client 1 <-> server

Diagram 2 - 7 Client 2 <-> server

2.5.

TCP

2.5.

TCP

2.5.

2.5. TCP

TCP Server

TCP Server mode have 2 parameters: max link number and link type

1. max link number: 1 ~ 4;

2. Link type: typical, completely transparent, send data to all client;

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Server

Server mode

mode

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extend1, communicate with id, otherwise abandon;

extend2, communicate with id, otherwise send to all client.

For link type extended 1 and extended 2:

When receive data from ethernet, module will send data to serial port with head ‘ I

‘ N

’

,followed by data. ’ I’represent incoming data, ‘ N

When user MCU want send data to module serial port, start with head ‘ O

represent send out, ‘ N

When new TCP connection incoming, module will send ‘ C’‘ N

that there is current link ‘ N

When link number have exceed maximum, new link requirment will lead to message ‘ F’‘ F ’ .

When disconnect, module will send ‘ D

Note:

serial data need to be sent in one package to module.

’

represent which client.

’

accessed, total link number ‘ M ’ .

’

‘ N

’

represent client index.

’

‘ N

’

data... ‘ O

’

‘ M

’

to serial port, indicating

’

‘ M ’ , represent current link N is delete, left link

’

Diagram 2 - 8 web page configuration

2.6.

Httpd

2.6.

Httpd

2.6.

2.6. Httpd

Httpd Client

This function is easier used for web page developer. We establish one web server page, add

this:

[<?php echo $_GET['data']; ?>]

Means we can GET data from HTTP client’s request. Open this URL:

www.usr.cn/1.php?data=12345 , the web page is downbelow, we can see that the web server have

got the data(12345),

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Client

Client mode

mode

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www.usr.cn/1.php?

Diagram 2 - 9 Request www.usr.cn/1.php?

www.usr.cn/1.php?

www.usr.cn/1.php? and upload data

Then we take another way, set USR-TCP232-E module Work mode HTTPD Client, Target

www.usr.cn,

address www.usr.cn,

www.usr.cn,

www.usr.cn, Target port 80,

Diagram 2 - 10 config HTTPD Client

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Diagram 2 -

Note.

HTTPD Client based on TCP Client.

2.7.

TCP

2.7.

TCP

2.7.

2.7. TCP

TCP Auto

When power on, module work as TCP Server, listen on local port, but if there is data received

from serial port before any connection, module will try to connect remote IP and port as TCP

Client.

Auto

Auto mode

mode

module act as HTTPD Client

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Diagram 2 - 12 TCP Auto act as Server

Diagram 2 - 13 TCP Auto act as Client

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2.8.

WEB

2.8.

WEB

2.8.

2.8. WEB

WEB to

Communication mode between serial port and web pages.

Serial

to Serial

Serial mode

mode

Diagram 2 - 14 config module to WEB to Serial mode

Select Telnet mode Web to Serial ，

Diagram 2 - 15 WEB to Serial communication demo

Note:

1 、 received window show data only when click on “ read ” button or select “ Auto read ” button.

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2 、 whether WEB to Serial mode or not, send web data to serial always work.

Hardware

3. Hardware

Hardware interface:

3.1.

USR-TCP232-E

3.1.

USR-TCP232-E

3.1.

3.1. USR-TCP232-E

USR-TCP232-E

About the new PCB libraries file, we can load from website.

interface:

3.1.1.

3.1.1. Hardware

Hardware

Diagram 3 - 1 USR-TCP232-E

1) Mechanical dimesion : ( L × W × H): 5 5 × 30 × 23 .2 (mm) including RJ45 and connector ；

2) PCB dimension (L × W): 50 .4 × 30.0 (mm) ；

3) 5V 3.3V double power input ， choose 1 input

1) 2 * serial(2 * TTL)

2) TTL serial port support hardware flow control

3.1.2.

3.1.2. Power

supply high quality 5 V / 1 A power adapter.

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Power

Power supply socket, The input voltage range 3.3V or

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, current 150 MA. We default

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3.1.3.

3.1.3. LED

LED

status

LED

status

LED status

status

Except for Link and Data of RJ45, there is one work LED interface

ID name

1 Work

2 Link(green) On RJ45, when ethernet link established, on.

3 Data(yellow) On RJ45, wnen ethernet data communicate, twinkle.

Description

Just interface, have no LED on module,

If you needed, take this pin with LED and 510 ohm

resistor to GND.

See Pin8 for further explantion.

Diagram 3 - 2 LED definition

3.1.4.

3.1.4. Serial(TTL)

3.2.

3.2. USR-TCP232-ED

Serial(TTL)

Serial(TTL) interface

The serial port is TTL level ( 2 * TTL serial port, can be directly connected to MCU ) .

number name Description

1 TXD0 Uart0 transmit data pin

2 RXD0 Uart0 receive data pin

3 CTS0 Uart0 RS232 clear to send

4 RTS0 Uart0 require to send

5 RXD1 Uart1 receive data pin

6 TXD1 Uart1 transmit data pin

USR-TCP232-ED

interface

Diagram 3 - 3 connector interface(include uart0 and uart1)

3.2.1.

3.2.1. Hardware

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Hardware

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Diagram 3 - 4 USR-TCP232-ED

1) Mechanical dimesion : ( L × W × H): 44.45 × 31.75 × 15.4 (mm) including RJ45 and connector ；

2) PCB dimension (L × W): 44.45 × 31.75 (mm) ；

3) 5V 3.3V double power input ， choose 1 input

4) 3 * serial(3 * TTL)

5) TTL serial port support hardware flow control

3.2.2.

3.2.2. Power

supply high quality 5 V / 1 A power adapter.

3.2.3.

3.2.3. LED

Power

Power supply socket, The input voltage range 3.3V or

LED

status

LED

status

LED status

status

Except for Link and Data of RJ45, there is one work LED interface

ID name

1 Work

2 Link(green) On RJ45, when ethernet link established, on.

3 Data(yellow) On RJ45, wnen ethernet data communicate, twinkle.

Description

Twinkle every 1 seconds

Diagram 3 - 5 LED definition

, current 150 MA. We default

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3.2.4.

3.2.4. Serial(TTL)

Serial(TTL)

Serial(TTL) interface

interface

Diagram 3 - 6 view from bottom

Diagram 3 - 7 pin diagram

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The serial port is TTL level ( 3 * TTL serial port, can be directly connected to MCU ) .

number name Description

1 ETH_TX+ Ethernet TX+

2 ETH_TX- Ethernet TX-

3 ETH_RX+ Ethernet RX+

4 ETH_RX- Ethernet RX-

5 LED_DAT A Ethernet Data

6 TXD0 Uart0 transmit data pin

7 RXD0 Uart0 receive data pin 8 485_en(RTS0) RS485 enable （ Uart0 require to send ）

9 Reload Restore to factory

10 RST reset

11 GND ground

12 GND ground

13 +5V +5V power

14 +5V +5V power

15 LED_LINK Ethernet link

16 +3.3V +3.3V power

17 RXD1 Uart1 receive data pin

18 TXD1 Uart1 transmit data pin

19 RXD2 Uart2 receive data pin

20 TXD2 Uart2 transmit data pin

21 CTS0 Uart0 RS232 clear to send

22 RTS1 Uart1 require to send

23 CTS1 Uart1 RS232 clear to send

Diagram 3 - 8 connector interface(include uart0, uart1, uart3)

Note:

1) Uart2 have no RTS and CTS

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3.3.

USR-TCP232-400

3.3.

USR-TCP232-400

3.3.

3.3. USR-TCP232-400

USR-TCP232-400

3.3.1.

3.3.1. Hardware

Hardware

Diagram 3 - 9 USR-TCP232-400

1) Mechanical dimesion : ( L × W × H): 90 × 84 × 2 5 (mm) including RJ45 and connector;

2) PCB dimension (L × W): 80.3 × 50. 3 (mm) ;

3) +5 ~ +18V power input;

4) DC power plug, 5.08 connector power input

5) 2 * serial(1 * RS232, 1 * RS485/422)

6) 1 * RS232 support hardware flow control

7) 1 * RS485/RS422

8) Specific: PIN 9 of the RS232 DB9 can connect to power for special uses.

3.3.2.

3.3.2. Power

serial com (through the PCB jumper short circuit, default closed).

Power

This system has three power supply interface, a power hub, a 5.08 terminal, pin 9 of the two

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Power supply socket, outer diameter 5.5 mm inner 2.1 mm standard size, inside plus, outside

minus. The input voltage range 5 ~ 1 8

A power adapter.

Power supply socket, the terminal and pin 9 of the com , mutual unicom, can choose one

power supply in, and another power supply out, better adapt to the use environment.

3.3.3.

3.3.3. LED

3.3.4.

3.3.4. RS232

LED

status

LED

status

LED status

status

Equipment have 4 indicator lights in total, sequence from left to right .

ID Name Description

1 Power(red) Bright after power on

2 Work(green) Flash at work

3 Link(green) In RJ45 port, bright after network connection

4 Data(yellow) In RJ45 port, flash if there are datas on network

RS232

RS232 interface

interface

current 150 MA. W e default supply high quality 5 V / 1

Diagram 3 - 10 LED definition

The serial port is male (needl), RS232 level (can be directly connected to computer serial),

part of RS232 pin sequences consistent to computer COM port. When connected with the

computer, we need to use cross cable (2-3 cross, 7-8 cross, 5-5 direct, 7-8 can don ’ t connect, but

musn ’ t direcly connect to computer . Otherwise, it might lead to irregularly work).

The DB9 interface contains the RS232, RS485 and RS422 interfaces.

Number RS232 RS485 RS422 Description

1 - B(-) TX- RS485 minus or RS422 transmit minus

2 RXD - - RS232 device receive data pin

3 TXD - - RS232 device transmit data pin

4 - - RX- RS422 receive minus

5 GND GND GND Signal ground

6 - A(+) TX+ RS485 plus or RS422 transmit plus

7 RTS - - RS232 require to send

8 CTS - - RS232 clear to send

9 - - RX+ RS422 receive plus

Diagram 3 -

Note: this DB9 interface include RS232 and RS485/RS422.

DB9 interface

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3.3.5.

3.3.5. RS485

A (+), B (-) to B (-).

and RS485 interface, but can only use one in a time, autoadaptation, connect as RS485 is RS485

function, connect as RS422 wiring is RS422 function.

3.4.

3.4. USR-TCP232-401

3.4.1.

3.4.1. Hardware

RS485

RS485 /RS422

RS485 two wirings terminal, A

RS422 interface also connected to RS232 nine needles binding post. The device have RS232

USR-TCP232-401

Hardware

/RS422

/RS422 interface

interface

(DATA

+), B (DA TA), when connected with RS485, A (+) to

Diagram 3 - 12 USR-TCP232-401

1) Mechanical dimesion : ( L × W × H): 90 × 84 × 2 5 (mm) including RJ45 and connector;

2) PCB dimension (L × W): 80.3 × 50. 3 (mm) ;

3) +5 ~ +18V power input;

4) DC power plug, 5.08 connector power input

5) 2 * serial(1 * RS232, 1 * RS485)

6) 1 * RS232 support hardware flow control

7) 1 * RS485

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3.4.2.

3.4.2. Power

minus. The input voltage range 5 ~ 1 8

A power adapter.

3.4.3.

3.4.3. LED

Power

This system has three power supply interface, a power hub, a 5.08 terminal.

Power supply socket, outer diameter 5.5 mm inner 2.1 mm standard size, inside plus, outside

current 150 MA. W e default supply high quality 5 V / 1

LED

status

LED

status

LED status

status

Equipment have 4 indicator lights in total, sequence from left to right .

ID Name Description

1 Power(red) Bright after power on

2 Work(green) Flash at work

3 Link(green) In RJ45 port, bright after network connection

4 Data(yellow) In RJ45 port, flash if there are datas on network

Diagram 3 - 13 LED definition

3.4.4.

3.4.4. RS232

part of RS232 pin sequences consistent to computer COM port. When connected with the

computer, we need to use cross cable (2-3 cross, 7-8 cross, 5-5 direct, 7-8 can don ’ t connect, but

musn ’ t direcly connect to computer . Otherwise, it might lead to irregularly work).

RS232

RS232 interface

The serial port is male (needl), RS232 level (can be directly connected to computer serial),

The DB9 interface contains the RS232, RS485 and RS422 interfaces.

Number RS232 Description

interface

1 - -

2 RXD RS232 device receive data pin

3 TXD RS232 device transmit data pin

4 - -

5 GND Signal ground

6 - -

7 RTS RS232 require to send

8 CTS RS232 clear to send

9 - -

Diagram 3 - 14 DB9 interface

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3.4.5.

3.4.5. RS485

A (+), B (-) to B (-).

RS485

RS485 interface

RS485 two wirings terminal, A

interface

Diagram 3 - 15 choose RS485 for 401 if you want to use RS485

(DATA

+), B (DA TA), when connected with RS485, A (+) to

3.5.

USR-TCP232-500

3.5.

USR-TCP232-500

3.5.

3.5. USR-TCP232-500

USR-TCP232-500

3.5.1.

3.5.1. Hardware

Hardware

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Diagram 3 - 16 USR-TCP232-500

1) Mechanical dimesion : ( L × W × H): 155 × 100 × 34 (mm) , including RJ45 and connector

2) PCB dimension (L × W): 130.5 × 90.2 (mm) ;

3) +5 ~ +48V power input

4) DC power plug, 5.08 connector power input

5) 3 * serial(2 * RS232, 1 * RS485/422)

6) 2 * RS232 support hardware flow control

7) 1 * RS485/RS422

8) Specific: PIN 9 of the RS232 DB9 can connect to power for special uses.

3.5.2.

3.5.2. Power

serial com (through the PCB jumper short circuit, default closed).

minus. The input voltage range 5 ~ 48

A power adapter.

power supply in, and another power supply out, better adapt to the use environment.

3.5.3.

3.5.3. LED

Power

This system has three power supply interface, a power hub, a 5.08 terminal, pin 9 of the two

Power supply socket, outer diameter 5.5 mm inner 2.1 mm standard size, inside plus, outside

current 150 MA. W e default supply high quality 5 V / 1

Power supply socket, the terminal and pin 9 of the com , mutual unicom, can choose one

LED

status

LED

status

LED status

status

Equipment have 4 indicator lights in total, sequence from left to right .

ID Name Description

1 Power(red) Bright after power on

2 Work(green) Flash at work

3 Link(green) In RJ45 port, bright after network connection

4 Data(yellow) In RJ45 port, flash if there are datas on network

Diagram 3 - 17 LED definition

3.5.4.

3.5.4. RS232

connected to computer serial), part of RS232 pin sequences consistent to computer COM port.

When connected with the computer, we need to use cross cable (2-3 cross, 7-8 cross, 5-5 direct,

7-8 can don ’ t connect, but musn ’ t direcly connect to computer. Otherwise, it might lead to

irregularly work).

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RS232

RS232 interface

It have 2 * RS232 interface. The serial port is male (needl), RS232 level (can be directly

The DB9 interface contains the RS232, RS485 and RS422 interfaces.

interface

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Note: none

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Number

name

RXD RS232 device receive data pin

TXD RS232 device transmit data pin

GND Signal ground

Description

7 RTS RS232 require to send

CTS RS232 clear to send

9 VCC Default not used. there is one pad jumper, default

disconnect, when connect, it can power supply outside

serial device.

Diagram 3 - 18 DB9 interface

3.5.5.

3.5.5. RS485

RS485

RS485 /RS422

/RS422

/RS422 interface

interface

RS485 two wirings terminal, A

(DATA

+), B (DA TA), when connected with RS485, A (+) to

A (+), B (-) to B (-).

RS422 interface also connected to RS232 nine needles binding post. The device have RS232

and RS485 interface, but can only use one in a time, autoadaptation, connect as RS485 is RS485

function, connect as RS422 wiring is RS422 function.

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3.6.

USR-TCP232-504

3.6.

USR-TCP232-504

3.6.

3.6. USR-TCP232-504

USR-TCP232-504

3.6.1.

3.6.1. Hardware

Hardware

Diagram 3 - 19 USR-TCP232-504

1) Mechanical dimesion : ( L × W × H) 95 × 85 × 25 (mm) , including RJ45 and connector;

2) PCB dimension (L × W): 80 × 50 (mm) ;

3) +5 ~ +18V power input;

4) DC power plug, 5.08 connector power input

5) 3 * serial(3 * RS485)

3.6.2.

3.6.2. Power

minus. The input voltage range 5 ~ 48

A power adapter.

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Power

This system has three power supply interface, a power hub, a 5.08 terminal.

Power supply socket, outer diameter 5.5 mm inner 2.1 mm standard size, inside plus, outside

current 150 MA. W e default supply high quality 5 V / 1

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3.6.3.

3.6.3. LED

3.6.4.

3.6.4. RS485

A (+), B (-) to B (-).

3.7.

3.7. USR-TCP232-52E

LED

status

LED

status

LED status

status

Equipment have 4 indicator lights in total, sequence from left to right .

ID Name Description

1 Power(red) Bright after power on

2 Work(green) On PCB board(can not be seen)

3 Link(green) In RJ45 port, bright after network connection

4 Data(yellow) In RJ45 port, flash if there are data on network

Diagram 3 - 20 LED definition

RS485

RS485 interface

RS485 two wirings terminal, A

USR-TCP232-52E

interface

(DATA

+), B (DA TA), when connected with RS485, A (+) to

3.7.1.

3.7.1. Hardware

Hardware

Diagram 3 - 21 USR-TCP232-52E

1) Mechanical dimesion : ( L × W × H): 103 × 105 × 28 (mm) ;

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2) PCB dimension (L × W): 100 × 76 (mm) ;

3) DC+5 ~ +28V power input;

4) DC power plug, 3.81connector power input;

5) 3 * serial(2 * RS232, 1 * RS485);

6) 2 * RS232 support hardware flow control;

7) 1 * RS485;

8) Specific: PIN 9 of the RS232 DB9 can connect to power for special uses;

9) 2*RJ45 , 10/100M adaptive ,y ou can t ake advantage of the free foot cable to achieve 5-28V

power supply network port .

Diagram 3 - 22 PCB inches

3.7.2.

3.7.2. Power

serial com (through the PCB jumper short circuit, default closed) and RJ45 .



 3.81 pitch terminal blocks, terminal external customers through the introduction of 5-28V

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Power

This system has four power supply interface, a power hub, a 3.81 terminal, pin 9 of the two

Power supply socket, outer diameter 5.5 mm inner 2.1 mm standard size, inside plus, outside

minus. The input voltage range 5 ~ 28 V . We default supply high quality 5 V / 1 A power

adapter.

power supply line .

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Power supply socket, the terminal and pin 9 of the com , mutual unicom, can choose one



power supply in, and another power supply out, better adapt to the use environment.

Network power, you can use an external network cable to supply power to the module, power



supply range of 5-28V .

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3.7.3.

3.7.3. LED

3.7.4.

3.7.4. RS232

connected to computer serial), part of RS232 pin sequences consistent to computer COM port.

When connected with the computer, we need to use cross cable (2-3 cross, 7-8 cross, 5-5 direct,

LED

status

LED

status

LED status

status

Equipment have 5 indicator lights in total, sequence from left to right .

ID Name Description

1 Power(red) Bright after power on

2 Work(green) Flash at work

3 Link 1 (green) In RJ45 1 port, bright after network connection

4 Link 2 (green) In RJ45 2 port, bright after network connection

5 Link 3 (green)

RS232

RS232 interface

It have 2 * RS232 interface. The serial port is male (needl), RS232 level (can be directly

interface

bright after network connection

Diagram 3 - 23 LED definition

module

7-8 can don ’ t connect, but musn ’ t direcly connect to computer. Otherwise, it might lead to

irregularly work).

The DB9 interface contains the RS232.

Number

8 CTS RS232 clear to send

9 VCC Default not used. there is one pad jumper, default

3.7.5.

3.7.5. RS485

A (+), B (-) to B (-).

RS485

RS485 interface

RS485 two wirings terminal, A

interface

name

RXD RS232 device receive data pin

TXD RS232 device transmit data pin

GND Signal ground

RTS RS232 require to send

Description

disconnect, when connect, it can power supply outside

serial device.

Diagram 3 - 24 DB9 interface

(DATA

+), B (DA TA), when connected with RS485, A (+) to

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3.7.6.

3.7.6. RJ45

While supporting DC5-28V POE power supply network cable, reducing the power supply wiring .

3.8.

3.8. USR-TCP232-52PE

3.8.1.

3.8.1. Hardware

1) Mechanical dimesion : ( L × W × H): 103 × 105 × 28 (mm) ;

2) PCB dimension (L × W): 100 × 76 (mm) ;

3) DC+5 ~ +28V power input;

4) DC power plug, 3.81connector power input;

5) 3 * serial(2 * RS232, 1 * RS485);

6) 2 * RS232 support hardware flow control;

7) 1 * RS485;

8) 2*RJ45 , 10/100M adaptive ,y ou can t ake advantage of the free foot cable to achieve 5-28V

RJ45

interface

RJ45

interface

RJ45 interface

interface

With two network interfaces, can be achieved hand in hand communications equipment.

USR-TCP232-52PE

Hardware

power supply network port .

3.8.2.

3.8.2. Power

Network power supply standard 48V POE .

3.8.3.

3.8.3. LED

Power

LED

status

LED

status

LED status

status

Equipment have 5 indicator lights in total, sequence from left to right .

ID Name Description

1 Power(red) Bright after power on

2 Work(green) Flash at work

3 Link 1 (green) In RJ45 1 port, bright after network connection

4 Link 2 (green) In RJ45 2 port, bright after network connection

5 Link 3 (green)

bright after network connection module

Diagram 3 - 25 LED definition

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3.8.4.

3.8.4. RS232

connected to computer serial), part of RS232 pin sequences consistent to computer COM port.

When connected with the computer, we need to use cross cable (2-3 cross, 7-8 cross, 5-5 direct,

7-8 can don ’ t connect, but musn ’ t direcly connect to computer. Otherwise, it might lead to

irregularly work).

3.8.5.

3.8.5. RS485

RS232

RS232 interface

It have 2 * RS232 interface. The serial port is male (needl), RS232 level (can be directly

The DB9 interface contains the RS232 .

Number

RS485

RS485 interface

interface

name

8 CTS RS232 clear to send

RXD RS232 device receive data pin

TXD RS232 device transmit data pin

GND Signal ground

RTS RS232 require to send

interface

Description

Diagram 3 - 26 DB9 interface

RS485 two wirings terminal, A

A (+), B (-) to B (-).

3.8.6.

methods PSE.

3.9.

3.9. RJ45

AUTO MDI/MDIX, can discretionarily connect cross-over or direct network cable. That is to say,

you can use direct cable to connect with computer or test.

RJ45

interface

RJ45

interface

RJ45

RJ45 interface

interface

Two network communication interface, accepting 1,2,3,6 and 4,5,7,8 standard in two

RJ45

RJ45 interface

Internet access port connection, module network interface is 10 M / 100 M adaptive, support

interface

Pin Name Description

1 TX+ Transceiver Data+

2 TX- Transceiver Data-

3 RX+ Receive Data+

4 n/c Not connected

5 n/c Not connected

6 RX- Receive Data-

(DATA

+), B (DA TA), when connected with RS485, A (+) to

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7 n/c Not connected

8 n/c Not connected

Diagram 3 - 27 RJ45 interface

3.10.

3.10. Reload

Reload button, device will be factory settings.

Using web pages can also restore default settings.

4. Paramters

Reload

This button is used to restore factory settings. Press the button and power on, then free this

Default settings main parameters as follows Address type ： static IP Static IP Address ： 192.168.0.7 User name ： admin password ： admin Module name ： USR-TCP232-E

Diagram 3 - 28 restore defaults through web pages

Paramters

Paramters configuration

configuration

4.1.

Web

4.1.

Web

4.1.

4.1. Web

Web page

Usually, this series of TCP232 module is configured through web pages.

4.2.

Serial

4.2.

Serial

4.2.

4.2. Serial

Serial port

After module already power on, press Reload(for USR-TCP232-E, pull Reload low), module

will go in Serial config mode(in this mode we can config paramters through serial command), then

module serial port 0 will switch to 9600, 8, n, 1, and send char ‘ U ’ , indicating that module already

in serial config mode.

after config complete, module will send ‘ K

Verify error will be ‘ E’and correct verify byte.

Free Reload(for USR-TCP232-E, pull Reload high), module will save paramters and reboot,

config take effect.

name Byte Description example Hex(low front)

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page

port

’

out, indicating config success;

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head 2 Head( 55 BA/55 C1/55 C2 ) 55 BA 55 BA

Target IP 4 Target IP 192.168.0.201 C9 00 A8 C0 Target port 2 Target port 8234 2A 20 Module IP 4 Module IP 192.168.0.7 07 00 A8 C0

Module port 2 Module port 20108 8C 4E

gateway 4 Gateway IP 192.168.0.201 C9 00 A8 C0

1 for TCP Client ; 0 for UDP ; 2

Work mode 1

Baud rate 3 Serial baud rate 115200 00 C2 01

serial param 1 Databit s , stopbit s, v erifybit s N,8,1 03

Unique ID 3

Subnet mask 4 Subnet mask, low front 255.255.255.0 00 FF FF FF

Sum verify 1

Total cmd ： 55 BA C9 00 A8 C0 2A 20 07 00 A8 C0 8C 4E C9 00 A8 C0 01 00 C2 01 03 00 00 00 00 FF FF FF B9

for UDP Server ; 3 for TCP

Server

ID-H, ID-L, ID-type , 0 for no

use

Sum verification, from target

ip until end

(sum itself not included)

Diagram 4 - 1 protocol structure and example

TCP Client 01

No use 00 00 00

sum B9

Note.

1. Head definition.

55 BA for write Port0 ， 55 BC for read port0;

55 C1 for write Port1 ， 55 C3 for read port1;

55 C2 for write Port2 ， 55 C4for read port2(Port2 only for-500).

2. For further information, see <USR-TCP232-XX config protocol V3.doc>.

4.3.

network

4.3.

network

4.3.

4.3. network

network command(setup

1. through software USR-TCP232-E45 Setup V1.0.5.0;

2. Network command(need to ask for protocol before purchasing).

Downbelow is the Setup for USR-TCP232-E45, http://www.usr.so/Download/90.html

command(setup

command(setup software)

software)

http://www.usr.so/Download/90.html

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Diagram 4 - 2 Setup software

(1) click ‘ Search Device ’ ;

(2) Select device in search list;

(3) Modified paramters such as static ip;

(4) Click ‘ Base Save ’ , paramters will be saved;

(5) Click ‘ Save Config ’ , the paramters will take effect;

(6) Search again, module will appear in new paramters.

Note.

After modified paramters, need first ‘ Base Save’or ‘ Save COMX ’ , then ‘ Save Config ’ .

If not, the paramters will only be saved, but not take effect.

Specific

5. Specific

Specific functions

5.1.

ModbusRTU

5.1.

ModbusRTU

5.1.

5.1. ModbusRTU

ModbusRTU to

The whole series product support ModbusRTU to ModbusTCP. When you use it, you have to

select the protocols, just here:

functions

to ModbusTCP

ModbusTCP

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Here, the usement and function is presented below.

 Selection None, that indicate we are using Transparent mode, no protocol convertion.

 Selection ModbusTCP, means we use protocol convertion from Modbus RTU to

ModbusTCP.

 In the comm side(RS232 or RS485), it's ModbusRTU protocol , the ethernet side is

ModbusTCP.

 The ethernet side must be a Master, who send query frame first, and the Modbus RTU device

respond with data to the command.

The function acts as below.

ModbusRTU to ModbusTCP

User Device

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ModbusRTU ModbusTCP

TCP 232-401

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5.2.

Hardware

5.2.

Hardware

5.2.

5.2. Hardware

Hardware flow

RS232 interface support hardware flowcontrol （ RTS/CTS ）

Pin name Description IO type Operater

RTS Request to Send O module

CTS Clear to Send I Outside device(PC)

When RTS = 0, enable the other side to send, at this time, TTL is 0 volt, RS232 is -3V ~

-15V;

When CTS = 0, represent module is enabled to send, at this time, TTL is 0 volt, and RS232 is

-3V ~ -15V;

When the logic is reverse, represent that disable the other side to send or was disabled the

module to send.

When connect with PC’s RS232 interface, we can use the serial cable(cross).

5.3.

User

5.3.

User

5.3.

5.3. User

User MAC

MAC

MAC address

flow

flow control

control

address

Diagram 5 - 1 Pin description

User MAC address default is 6 bytes of 0xff ， that is: FF-FF-FF-FF-FF-FF,

If defaults ， use the factory MAC address such as: ac- cf-23-20-fe-3d;

If not, user MAC address will take effect.

When modify this address, insert ‘ -’between bytes, or insert nothing. Click ‘ Update Settings

to save parameters, reset to take effect.

Diagram 5 - 2 user MAC address

In Current config and status, can see the currently MAC address in use. Diagram below is

’

using the factory MAC.

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Diagram 5 - 3 currently MAC in use

5.4.

Firmupdate

5.4.

Firmupdate

5.4.

5.4. Firmupdate

Firmupdate

Use search and config software to update firmware, only

once for one time, can not cross network segment.

1. Search and select one module

Diagram 5 - 6 search and select

2. ‘ Device’-> firmware update

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Diagram 5 - 7 firmware update

Click to start update progress.

Diagram 5 - 8 in update progress

3. Update success, click exit.

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Diagram 5 - 9 success

Note. After update, if can not search module, restore to factory will fix this problem.

Module

6. Module

Module USES

USES

6.1.

Hardware

6.1.

Hardware

6.1.

6.1. Hardware

Hardware connection

For the convenience of use, we designed evaluation board for module USR-TCP232-E , with

the RS232 to TTL conversion circuit, convenient for user communicate with computer .

Here we take USR-TCP232-E for example, The default configuration:

IP address: 192.168.0.7

Subnet mask: 255.255.255.0

The default gateway: 192.168.0.1

connection

Diagram 6 - 1 IP Address Selection

To test briefly, you can connect the module with computer via network cable, or you can also

connect the module and computer to switch or router at the same time. No need to distinguish

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cross and direct connect cable, the module have automatic switch function. And, change computer

IP to 192.168.0. *, such as 192.168.0. 161 we test.

Connect the module serial to computer through TTL to RS232 turn wiring. if you use TTL to

USB turn wiring, please pay attention to the quality of the turn wiring, most low price USB turn

TTL module on market is low quality at present.

Power up, 5 V connect to VDD or 3.3 V connect to VCC, keep the voltage stable, 150 MA

current at least.

power

TTL

User

device

6.2.

Login

6.2.

6.2. Login

pages.

User name and password are “ admin ” , this can be modified when login into the system.

Serial to Ethernet

Converter

USR

TCP 232

Diagram 6 - 2 Application

- E

Ethernet

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Diagram 6 - 3 Login web page

Webpage as follows, PORT2 is not available , 2. TTL(uart0) Settings and 3. TTL(uart1)

Settings respectively corresponding to UART 0 and UART 1 Settings, 4. Miscellaneous Settings is

used to set some parameters such as module IP and module name.

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Diagram 6 - 4 web page of USR-TCP232-E

Note:

For webpages: PORT0, PORT1 and PORT2, represent below:

TCP232-E/ED: PORT0 represent UART0, PORT1 represent UART1, PORT2 not available; TCP232-400/401: PORT0 represent RS232 ， PORT1 represent RS485 ， PORT2 not available; TCP232-500: PORT0 and PORT1 represent RS232_0 and RS232_1 ， PORT2 represent

RS485/422;

TCP232-504: PORT0, PORT1, PORT2 represent RS485_0 、 RS485_1 and RS485_2

6.3.

Default

6.3.

Default

6.3.

6.3. Default

Default working

To test briefly in default working mode, on the foundation of the hardware connection, use

the matched software USR-TCP232-Test to make transmit t ing and receiving test. The left side is

serial port, use software default settings, the right side is the network part, set to TCP Client and

server to be IP 192.168.0.7, port 23.

By default, the two COM port to be set as TCP Server mode, port is 23/26.

This illustration shows the 10 ms two-way simultaneous automatically transmit screenshots.

As the allocated memory of the display control is limited, in order to test large amount of data

transceiver, here will suspend the receive display, only statistical data. Below is the effect after

testing for a few hours, and transmit t ing millions of bytes. Stable and reliable, without a byte loss.

working

working mode

mode

mode test

test

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Diagram 6 - 5 default working mode communication

Specially

Specially instruction:

(default 0, closed). Such as setting the Telnet Time out, to prevent the complicated internet

circumstances influencing communication stability, and solving the off lineelink,communication

feign death, TCP connection to be occupied problems.

the module will be active to switch off the client links, release resources, wait for new links,

transmit t ing or receiving data will clear the time.

the module will be active to switch off the server links and try to relink.

6.4.

6.4. Common

6.4.1.

6.4.1. Work

instruction:

For the robustness of your application system, we suggest you using the time out function

In the TCP Server mode, if still have no new data transceiver when it is time out set t ing time,

In the TCP Client mode, if still have no new data transceiver when it is time out set t ing time,

Common

Common questions

Work

Work across

questions

across

across network

network

network segment

segment

If your TCP232 device’s IP is 192.168.0.7, and remote PC’s IP is 192.168.1.7, we need to

config.

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Multifunctional serial to Ethernet module user manual http://en.usr.cn

Subnet mask of TCP232 device, PC, and router to 255.255.0.0, if not ,the TCP232 module

will not communicate normally.

6.4.2.

6.4.2. Ping

Some possible causes

1. Module is set a static ip and conflicts with another ethernet device.

2. Cross network and false subnet mask .

3. HTTP server port is modified(default 80).

Solutions:

1. Set another static or use DHCP.

2. Set correct subnet mask.

3. Set this port to 80 or open web page with correct port.

6.4.3.

6.4.3. After

6.4.4.

6.4.4. When

Ping

but

can

not

open

Ping

but

can

Ping is

is OK

OK but

but can

After

After firm

Reload this module back to factory settings.

When

When connection

Possible causes.

firm

update,

firm

update,

firm update,

update, can

connection

connection established,

not

can not

not open

can

can not

established,

established, server

open

open web

not

open

not

open

not open

open web

web

web pages

server

server received

web

web page

pages

page

received

received serval

serval

serval chars

chars

1) Telnet Protocol use Telnet(usually should be RAW).

2) Module id type is not 0.

Diagram 6 - 6 T elnet Protocol

Diagram 6 - 7 Module id type

Solutions.

1) Telnet Protocol choose

2) Module id type set 0.

RAW.

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6.4.5.

6.4.5. Every

Every

Every serval

Telnet Timeout was set to none 0 value.

Solutions

1) Give Telnet Timeout 0 or send data before timeout.

serval

serval seconds,

seconds,

seconds, module

module

module reconnect

reconnect

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7. C

C ompany : Jinan USR IOT Technology Co., Ltd

A ddress : 1- 724--728 , Huizhan Guoji Cheng, Gaoxin Qu, Jinan, Shandong, China

Web: http:// en.usr.cn Skype: lisausr

Em ail : sales@usr.cn tec@usr.cn

ontact

C ontact

ontact us

el: 86- 531-55507297 86- 531-88826739 -803

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Modified

8. Modified

Modified history

1) V1.0 file established

2) V1.1 take -E, -400, -500 into one file; add TCP Auto, HTTPD Client and so on.

3) V1.2 add Keepalive

4) V1.2.1 add -ED, -401, -504

5) V1.2.3 add-52E,52PE

6) V1.2.5 modify errors

history

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Usr USR-TCP232- E, USR-TCP232- ED, USR-TCP232-400, USR-TCP232-401, USR-TCP232-500 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Overview

1.2 Features

Applications

Order information

Block diagram

UDP mode

Hardware

Hardware interface:

USR-TCP232-E

Power

LED status

Serial(TTL) interface

USR-TCP232-ED

Hardware

Power

LED status

Serial(TTL) interface

USR-TCP232-400

Hardware

Power

LED status

RS232 interface

USR-TCP232-401

Hardware

Power

LED status

RS232 interface

RS485 interface

USR-TCP232-500

Hardware

Power

LED status

RS232 interface

USR-TCP232-504

Hardware

Power

LED status

RS485 interface

USR-TCP232-52E

Hardware

Power

RS232 interface

RS485 interface

RJ45 interface

USR-TCP232-52PE

Hardware

Power

LED status

RS232 interface

RS485 interface

RJ45 interface

RJ45 interface

Reload

Paramters configuration

Web page

Serial port

Specific functions

Firmupdate

Module USES

Hardware connection

Login

Common questions