Wiznet WIZ120SR User manual

WIZ120SR User‟s Manual
(Version 1.0)
© 2009 WIZnet Co., Inc. All Rights Reserved.
☞For more information, visit our website at http://www.wiznet.co.kr

WIZ120SR User‟s Manual ii
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WIZ120SR User‟s Manual iii
COPYRIGHT NOTICE
Copyright 2009 WIZnet, Inc. All Rights Reserved.
Technical Support: [e-mail]
Sales & Distribution: [e-mail]
For more information, visit our website at http://www.wiznet.co.kr

WIZ120SR User‟s Manual iv
Table of Contents
1. Introduction ...............................................................................................1
1.1 Key Features ..................................................................................1
1.2 Products Contents (EVB model)...........................................................2
1.3 Product Specifications.......................................................................3
1.3.1. WIZ120SR Module...................................................................................................3
1.3.2. WIZ120SR Test Board.............................................................................................4
2. Getting Started ...........................................................................................5
2.1 Hardware Installation Procedure...........................................................5
2.2 Configuration Tool............................................................................5
2.2.1. Network Configurations ..........................................................................................5
2.2.2. Port Setting ...............................................................................................................9
3. Firmware Upload....................................................................................... 13
4. Serial Configurations .................................................................................. 15
4-1. Serial Command Format ........................................................................ 15
4-2. WIZ120SR Configuration with Serial Command............................................. 18
5. PIN Assignment and Dimension ...................................................................... 20
6. Demonstration and Test............................................................................... 22
Document Revision History ................................................................................. 26

WIZ120SR User‟s Manual v
Figures
FIGURE 1. WIZ120SR TEST BOARD ...............................................................................4
FIGURE 2. CONFIGURATION TOOL (NETWORK CONFIGURATION)....................................................5
FIGURE 3. PPPOECONNECTION PROCESS IN SERIAL CONSOLE .....................................................7
FIGURE 4. CONFIGURATION TOOL (SERIAL CONFIGURATION) .......................................................9
FIGURE 5. BOARD SEARCH WINDOW ............................................................................. 13
FIGURE 6. OPEN DIALOG BOX FOR UPLOADING ................................................................... 14
FIGURE 7. FIRMWARE UPLOADING WINDOW....................................................................... 14
FIGURE 8. COMPLETE UPLOADING ............................................................................... 14
FIGURE 9. SERIAL CONFIGURATION ENABLE SETTING............................................................. 18
FIGURE 10. WIZ120SR PIN ASSIGNMENT........................................................................ 20
FIGURE 11. WIZ120SR BOARD DIMENSIONS (UNIT :MM)........................................................ 21
FIGURE 12.SERIAL TERMINAL PROGRAM CONFIGURATION........................................................ 23
FIGURE 13. NETWORK TERMINAL PROGRAM CONFIGURATION .................................................... 23
FIGURE 14. RECEIVED DATA BY NETWORK TERMINAL PROGRAM .................................................. 24
FIGURE 15. DEVICE TERMINAL PROGRAM ........................................................................ 25

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Tables
TABLE 1. PRODUCTS CONTENTS....................................................................................2
TABLE 2. WIZ120SR MODULE SPECIFICATIONS ....................................................................3
TABLE 3. SERIAL COMMAND –COMMAND FRAME FORMAT ......................................................... 15
TABLE 4. SERIAL COMMAND -REPLY FRAME FORMAT ............................................................. 15
TABLE 5. SERIAL COMMAND -STX &ETX...................................................................... 15
TABLE 6. SERIAL COMMAND –REPLY CODE ....................................................................... 15
TABLE 7. SERIAL COMMAND –COMMAND CODE ................................................................... 17
TABLE 8. SERIAL COMMAND TESTING PROCEDURE ................................................................ 19
TABLE 9. SERIAL COMMAND CONSOLE DISPLAY ................................................................... 19
TABLE 10. WIZ120SR PIN ASSIGNMENT ........................................................................ 20

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1. Introduction
WIZ120SR is a 2 ports gateway module that converts RS-232 protocol into TCP/IP protocol.
This module enables remote gauging, remote management of the device through the network
based on the Ethernet and the TCP/IP by connecting to existing equipments with RS-232 serial
interface. In other words, WIZ120SR is a protocol converter that transmits the data sent by
serial equipment as TCP/IP data type or vice versa.
1.1 Key Features
-Direct Connection to Serial Devices
Adds Network Function Simply and Quickly
Provides Firmware Customization
-Supports 2 Ports Serial
-Provides System Stability and Reliability by using W5100 Hardwired Chip
-Includes Configuration Tool Program
-Supports PPPoE Connection for ADSL
-Supports Password for the Security
-Supports Serial Configuration –with Simple and Easy command
-10/100 Ethernet Interface and max 230Kbps Serial Interface
-Supports Static IP, DHCP, PPPoE
-Supports DNS function
-RoHS compliant

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1.2 Products Contents (EVB model)
WIZ120SR Module
WIZ120SR Test Board
Serial Cable
(to connect Serial device and Test board)
Network Cable
(Crossover Cable)
Power
(DC 5V 500mA Adaptor)
CD
(includes Manual, Hardware Schematic and
Software)
Table 1.Products Contents

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1.3 Product Specifications
1.3.1.WIZ120SR Module
Category
Specifications
Protocol
TCP, UDP, IP, ARP, ICMP, IGMP, MAC, DHCP, PPPoE, DNS
Network Interface
10/100 Base-T Ethernet (Auto detection)
Serial Port
2 UART(RS232, 3.3V LVTTL)
CPU
ARM Cortex-M3
Serial line format
Data bits : 7, 8
Parity : None, Odd, Even
Stop bits : 1, 2
Serial flow control
None, XON/XOFF, CTS/RTS
Serial signal
TXD, RXD, RTS, CTS, GND
Software
Remote Download and Configuration
Serial Transmission Speed
1200bps ~ 230Kbps
Temperature
-20~70°C (Operating), -40~85°C (Storage)
Humidity
10~90%
Power
3.3V, 300mA(MAX)
Connector type
1x14 2mm Pin header X 2
Size
50mm x 30mm x 8.85mm
Table 2.WIZ120SR Module Specifications

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1.3.2. WIZ120SR Test Board
Figure 1. WIZ120SR Test Board
Power Switch
WIZ120SR Module
Reset Switch
Port Status LED
Power LED
RJ45
Connector
Power
Adapter
Port 2
RS232 Connector
Port 1
RS232 Connector
Select
Boot
Reserved
(not mounted)

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2. Getting Started
2.1 Hardware Installation Procedure
For the testing, the module and test board should be prepared.
STEP1: Insert the WIZ120SR module into the sockets on the test board.
☞Be careful of connecting the JP1 on the module to the correct JP1 on the test
board.
STEP2:Connect the RJ-45 connector of WIZ120SR test board to the Ethernet hub
or LAN port of PC with network cable.
STEP3: Connect the DB9 jack of WIZ120SR and serial device with RS-232 serial line.
STEP4:Connect the 5V (500mA) DC power adaptor to the WIZ120SR test board.
2.2 Configuration Tool
2.2.1.Network Configurations
Figure 2. Configuration Tool (Network Configuration)
①Version : Displays the firmware version.
②Enable Serial Debug Mode : If this mode is enabled, you can monitor the status and socket
messages of WIZ120SR (listen OK, connect fail etc.) through the serial terminal. In this mode,

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debug messages can cause abnormal operation of the serial device. Therefore, you should use
this mode only for debugging.
③Connection Status : This field shows the Connection Status of UART0 and UART1 in
WIZ120SR. The message “Connected” will be displayed when a peer successfully connects to
WIZ120SR.
④Board List : If you click the “Search” button, all the MAC addresses on the same subnet
will be displayed.
⑤ IP Configuration Method: Select an IP setting mode (Static, DHCP, PPPoE mode).
-Static: ”Static” is an option for setting the WIZ120SR IP as static.
1. Select a MAC address which you want to set as static IP in the „board list‟.
2. The “Local IP, Subnet, Gateway” box will be enabled, and then input address in those fields.
3. Click the “setting” button to apply your configurations.
Notice: PPPoE ID and Password box are disabled in this mode.
- DHCP: Select this option to use the DHCP mode.
1. Select the MAC address on the board list.
2. Check „DHCP‟ and click the „Setting‟ button.
3. A module will acquire network information from the DHCP server. (Please wait a moment to
acquire network information from the DHCP server.)
4. When a module on the board list is selected, the IP address, Subnet mask and Gateway are
displayed.
If the module could not acquire the network information from the DHCP server, the IP address,
the Gateway Address and the Subnet mask will be initialized as 0.0.0.0.
- PPPoE : WIZ120SR support PPPoE for ADSL users. When you select PPPoE in “IP Configuration
Method”, the PPPoE ID and the Password box is enabled.
1. To setup PPPoE, directly connect WIZ120SR to a PC and execute Configuration Tool program.
2. Select „PPPoE‟ in the “IP Configuration Method” tab and input your ID & Password.
3. Click “setting” button to apply.
4. Connect Module to ADSL Line to establish your PPPoE connection.
5. When “Enable Serial Debug Mode” is selected, you can see PPPoE access status
via Serial Console.

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Figure 3. PPPoE Connection Process in Serial Console
⑥IP Address Information
- Local IP : WIZ120SR‟s IP Address
- Subnet : WIZ120SR‟s Subnet Mask
- Gateway : WIZ120SR‟s Gateway Address
☞If you are unclear about your Local IP, Subnet Mask, Gateway information, you have to
get this information from your network administrator. If the IP address is not correct, IP
collision or network problems may occur.
⑦PPPoE ID/Password : When you select „PPPoE‟ mode, you should input your ID and
Password which are provided by your ISP company.
⑧Direct IP Search
Direct IP Search can be used for searching for WIZ120SR which is not in the same subnet.
If the Direct IP search is checked, the configuration tool uses the TCP instead of UDP
broadcast to search for module. Therefore, network information of the module such as IP
address, subnet mask and gateway are required.
When you check Direct IP search, the field for IP address will be activated. In this field, input
the IP address of the module, and click the “Search” button.
☞If module does not have valid network information, Direct IP search is not available.
In this case, you must check to see whether you have a connection to either your WAN or
NAT area using a PING test. If not connected, proceed to connect to either one or both
and try the Direct IP search again.
⑨Search
The Search function is used to search for all existing modules on the same LAN. By using UDP
broadcast, all modules on the same subnet will be found.

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The module found will be displayed as MAC address in the “Board list”.
⑩Setting
This function is to apply your configurations.
When you select the MAC address from the “Board list”, the default value of the module will
be displayed. Modify your configurations and click “Setting” button to apply your settings.
The module will re-initialize and save with your modified configurations.
You can change the configurations by following the steps below:
①Select the MAC address of the device which you would like to modify in the “Board List”
②Modify the settings according to your needs
③Click the “Setting” button to apply your settings
④The module will be initialized by a re-booting process
⑤To verify your settings, please click „Search‟ button and view your new settings
⑪Upload
Firmware will be uploaded through your network.
The Procedure of Firmware upload is explained details in “Chapter 3. Firmware Upload”
⑫Exit : Close the configuration tool program window.

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2.2.2.Port Setting
Figure 4. Configuration Tool (Serial Configuration)
You should set to UART configuration after checking UART tab whether it is UART0 or UART1.
The numbers on the screenshot correspond to the descriptions listed below.
①Serial
This menu is used for setting up your serial configurations.
☞In order to apply your settings, click the “Setting” button
②Inactivity time
When there is no data transmission, the connection will close automatically after the time
specified in the Inactivity time.
If the default value ‘0‟ is set as the Inactivity time, the network connection is maintained
even though there is no data transmission. In order to close the connection, you should use
the „Close‟ commands.
This function is useful when you have two or more systems which are connected to the
WZ120SR module. When one system is connected to the WIZ120SR, other systems cannot
connect to the module simultaneously. If you defined a time in the Inactivity time, the other

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system can connect to the module after the inactivity time elapsed.
Inactivity Time can also be used when the server system is unexpectedly shut down. In this
case, there will not be any data communication. After the time defined in the Inactivity time
elapsed, WIZ120SR will close the connection and enter into waiting state.
③Data Packing Condition
You can specify how the serial data can be packed to be sent to the Ethernet. There are 3
delimiters - time, size and character. If all of them are set as „0‟, whenever the serial data is
arrived, they are sent to the Ethernet immediately.
- Time: This field specifies the waiting time. When there is no more input from the serial port,
the module will wait for the specified time and then send out the serial data to the
network. For example, if 2000 ms is specified, the module will send out the packet at
2000 ms after the last input from the serial port. If there is no data in the serial buffer,
the module will not send out any data packets.
(„0‟: Function Disable)
- Size: This field specifies the size limit in the serial buffer. Once the serial buffer reaches
this limit, the data will be sent out to the Ethernet. If the serial buffer is greater than
the size limit, the module will create an Ethernet packet and store the extra data, and
send out to the Ethernet when the limit is reached again.
(„0‟: Function Disable)
- Character: Register a character to trigger the conversion of serial data to network packets.
Whenever the registered character is inside the serial buffer, all the data before the
registered character is sent out to the network excluding the character itself. The
character must be in Hexadecimal.
(„0‟ : Function Disable)
If any one of these conditions is met, the data will be sent to Ethernet.
Ex) Delimiter: Size=10, Char=0x0D
Serial data : 0123456789abc
Ethernet data : 0123456789
☞“abc” remains in the serial buffer of the module and will not be sent until the
specified size or character has been fulfilled.
④Operation mode
- Client / Server / Mixed
This field is to select the communication mode based on TCP (Server mode, Client mode, and
mixed mode). TCP is a protocol which requires connection establishment (known as “three
way handshake”) before the data is sent or received. On the other hand, UDP sends out data
without a connection establishment.
TCP Server mode means WIZ120SR operates as a server. WIZ120SR waits for a connection from
the peer to a specified port number.
The TCP Client mode allows the WIZ120SR to operate as a client on the connection

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establishment. TCP Client mode tries to connect to the peer IP and peer port number. The
mixed mode supports both mode of operations (server and client).
<TCP server mode>
In the TCP Server mode, WIZ120SR waits for connection requests.
TCP Server mode can be useful for checking the status of a system by connecting to a
device or for accepting to connect from control center.
In order to operate in this mode, Local IP, Subnet, Gateway Address and Local Port
Number should be configured first.
Data transmission proceeds as the followings:
1. The host connects to the WIZ120SR which is configured as TCP Server mode.
2. After the connection is established, data can be transmitted in both directions –from
the host to the WIZ120S or vice versa.
<TCP client mode>
When TCP client mode is set in WIZ120SR, it attempts to establish a connection to the
server.
To operate this mode, Local IP, Subnet, Gateway Address, Peer IP, and Peer port number
should be set. If your server IP is represented as a domain name, please use the DNS
function.
Data transmission proceeds as follows:
1. As long as power is supplied, the WIZ120SR board can establish a connection to the
server with peer IP and Peer Port number.
2. When the connection is established, data can be transmitted in both directions –from
the host to the WIZ120SR or vice versa.
<Mixed mode>
In the mixed mode, WIZ120SR automatically begins to operate as the TCP Server, and
waits for the connection request from peers. However, if WIZ120SR receives data from
the serial device before a connection is established, it changes to the client mode and
sends the data to the peer IP. Therefore, in the mixed mode, the server mode has priority
over the client mode, unless data from a serial device is received first. To go back into
Sever mode, close the Client mode connection and the WIZ120SR will automatically
revert to Server mode.
Similar to the TCP Server mode, the Mixed mode is useful for monitoring the status of the
serial device. In an emergency, the module can be switched by the device/user to Client
mode to establish the connection to the peer and deliver the emergency status of the
device.
- Use UDP mode
In the UDP mode, the connection establishment is omitted. Please set the IP address and port
number of the peer then your packet will send out.
UDP Protocol does not provide reliable data communication; as a result, you must evaluate
whether UDP is suitable for your application or not.
- Local Port : This field is to set the network port number in WIZ120SR.
☞You should set to different port number from each other UART port.

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⑤Serial Configurations
Serial Configurations are not set by using the network interface (PC configuration tool), but
you should set from the Serial interface using Serial Commands. Click the check button
“Enable” to enter serial configurations mode. For more details, please refer to section 4
“Serial Configuration” below.
☞This function is only supported by „UART 0‟.
⑥Password
For security purposes, you can restrict the access of the module by imposing a password.
‟Password‟ function is only available in Server mode. If „password‟ function is enabled, the
client should input the password to access the module.
1. Execute Configuration Tool program.
2. Select „Server‟ in the “Operation Mode”.
3. Check “Enable” of “Password(TCP Server)” and enter a password of your choice
4. Click the “Setting” button
5. When the client tries to access this module, client should send the 'password' to the
server module before access is granted.
⑦Destination Information
When your module is set as “Client mode” or “Mixed mode” or “UDP mode”, peer IP and port
should be set in order for WIZ120SR to connect to the server (or peer).
- Use DNS : If your application needs the DNS function, click the select button and input the
domain name and the DNS Server IP address. Domain Name System (DNS) is a database system
that associates the Domain name with the actual IP address. The purpose of the DNS system is
to resolve the Domain name and represent it as an IP address. As a result, your device can
connect to an actual IP address.
- DNS Server IP: Input your DNS IP address or DNS server address provided by your Internet
Service Provider (ISP)
- Domain name : Input Domain name of connecting node. (Ex: www.wiznet.co.kr)
DNS function is good for peer IP that is not fixed (DHCP) or peer that have domain name. As a
result, you do not need to change peer IP configuration every time the peer IP change.

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3. Firmware Upload
①Run „WIZ120SR Configuration Tool‟ program, and click the “Search” button.
②If the module is properly connected to the network, the “Searching Complete” message
and the MAC address will be displayed on the “Board List” as shown in Figure.5.
Figure 5. Board Search Window
③Select a module shown in the “Board list”, and click the “Upload” button.
☞Before uploading the firmware through Ethernet, you should set the network
information of WIZ120SR first, by Configuration Tool program as shown above in Figure
5. By using Ping test, you can check whether your network is configured correctly or
not.
④When the window as shown in Figure 5 is displayed, select file to upload and click the
“Open” button.

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Figure 6. Open dialog box for uploading
☞Do not upload any other files except for WIZ120SR application firmware file.
⑤A dialogue box titled “Processing” will be displayed as below.
Figure 7. Firmware uploading window
⑥When uploading is completed, a message box with “Complete Uploading” will be
displayed as shown in Figure 8.
Figure 8. Complete Uploading