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WIZnet’s configuration tool enables product search, product settings, and firmware upload via the network¹⁾. WIZ750SR is compatible with WIZ107/108SR and uses the same configuration tool²⁾.

The following screen will appear once the program is installed and opened.

Figure: Configuration Tool for WIZ750SR & WIZ107/108SR Products

Figure: Configuration Tool Layout

The configuration tool is composed of four sections. Details of each section are available below.

• Device search, save settings, device reset and Etc.

• Lists the information of searched devices on the network

• Check and modify settings
• Composed of three tabs: Network / Serial / Options

• Shows the number of searched devices and the progress of firmware upload

• Searches for WIZ750SR on the same network.
• Search can be done via UDP Broadcast³⁾ or TCP Unicast⁴⁾
• The UDP & TCP search pop-up windows is as below.

Figure: UDP Search (broadcast)	Figure: TCP Search (unicast)

• Use TCP/UDP port 50001 to search WIZ750SR. Search can be unsuccessful due to firewall or virus protection software.
  • In this case, try to search after turning off the firewall or virus protection software.
  • Please refer to this guide if still unsuccessful.
    • Troubleshooting Guide: Device cannot be searched

• Save the settings for WIZ750SR.
• The settings will be applied through the configuration tool.
• Then the module will automatically reboot.

• Use the firmware binary file provided from WIZnet to update WIZ750SR’s firmware
• Then the module will automatically reboot.
• The following pop-up will appear once the firmware upload is complete.

Figure: Popup Message - Firmware Upload Successfully

• Use TCP/UDP port 50002 to upload firmware on to WIZ750SR. Firmware upload can be unsuccessful due to firewall or virus protection software.
  • In this case, try to upload after turning off the firewall or virus protection software.
  • Please refer to this guide if still unsuccessful.
    • Troubleshooting Guide: Firmware cannot be uploaded
• The module will not work properly if the firmware is not correctly uploaded.

• Reboots WIZ750SR.

• Returns the settings of WIZ750SR to factory default.
• Factory default setting of can be checked at WIZ750SR Factory Settings.
• Then the module will automatically reboot.

• Ping Test checks whether or not the module and PC can communicate with each other.
• If the module and PC can communicate via same network, the following ping reply will appear.

Figure: Ping Request and Reply

• Opens the Windows control panel (firewall).
• Use this icon to turn off the firewall if either the device search or firmware upload is unsuccessful.

• Ends the configuration tool.

Figure: Device List

• List of devices searched will appears.
  • Each device will be listed accordingly to each MAC addresses.

• Users can check the below information by clicking the searched MAC address.

• Using the follow IP Address (default)
  • By selecting this option, users can enter the IP address, port number, subnet mask, gateway address, DNS server into section 2.

• DHCP
  • By selecting this option, all information in section 2 is automatically allocated from the router (DHCP server).

* Details of IP address allocation are available at WIZ750SR User's Manual: IP address settings.
* PPPoE mode is not supported.

• WIZ750SR operates based on the allocated IP address from the network.
  • As explained above, users can enter the IP address, port number, subnet mask, gateway address, DNS server into section 2 if 'using the follow IP address' is selected.

• Setting for the network operation mode.
  • Users can choose among the four options that suits their application: TCP client mode, TCP server mode (default), TCP client/server mixed mode, UDP mode.
  • Details of each network operation mode are available at WIZ750SR User's Manual: Network Operation Mode.

• Users can enter the IP address or domain name of the destination or remote host when the module attempts connection in TCP client mode⁸⁾ or UDP mode.
• The port number of the destination is required.
• Details of the remote host setting are available at WIZ750SR User's Manual: Remote Host Settings.

* WIZ750SR does not support PPPoE / DDNS

• Enable debug message output
  • By enabling this option, the product information or error status can be printed via the Debug UART.
  • The serial settings of the Debug UART is fixed as 115200-8-N-1:None.

• Baud Rate
  • The supported baud rates are as below.
  • 300, 600, 1200, 1800, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200(default), 230400

• Data Bit
  • The supported data bits are as below.
  • 7, 8(default)

• Parity Bit
  • The supported parity bits are as below.
  • NONE(default), ODD, EVEN

• Stop Bit
  • The supported stop bits are as below.
  • 1(default), 2

• Flow Control
  • RS-232/TTL versions support the below serial data flow control.
    • NONE(default): Do not use flow control.
    • XON/XOFF: Software flow control
    • CTS/RTS: Hardware flow control
  • RS-422/485 versions will operate as ‘NONE’ shown above no matter which option is selected.

• WIZ750SR provides multiple serial data packing options⁹⁾. By using this option, user command frame or all other data can be collected and sent together.

• Timer
  • Range: 0 ~ 65535 / Unit: milliseconds (ms)
    • Default: 0 (Not used)
  • Collects the data until the designated time is lapsed and sent together.Will not operate if set to '0'.

• Size
  • Range: 0 ~ 255 / Unit: data length (number of bytes)
    • Default: 0 (Not used)
  • Collects the data until the designated data length is reached and sent together.
  • Will not operate if set to '0'.

• Character
  • Range & Unit: 1-byte character (Hex code)
    • Default: 00 (Not used)
  • Collects the data until the designated character is entered and sent together.
  • The designated character will be included if the data size does not exceed the buffer size. The designated character will be excluded if the data size exceeds the buffer size.
  • Will not operate if set to '0x00'.

• Serial command mode switch code: Enable
  • By enabling this option, the data communication mode (GW mode) will change to serial command mode (AT mode) when sending the command mode switch code via the serial data port.
    • Default: Enabled
  • Use the serial command mode composed of 2-byte to change settings.
  • The existing TCP connection will be lost if the mode changes to serial command mode.

• Serial command mode switch code: Trigger Code
  • This is a 3-byte code for switching the mode from data mode to serial command mode.
    • Default: [2B][2B][2B] (+++)
  • Each byte value reads hex code only.

• Range: 0 ~ 65535 / Unit: seconds
  • Default: 0 (Not used)
• If inactivity timer is set, connection is lost after the designated time without data communication is lapsed after the last data is sent.
• This setting is for TCP Server or TCP Client mode and mixed mode.

• Range: 1 ~ 65535 / Unit: milliseconds (ms)
  • Default: 3000 (Use, 3 seconds)
• The re-connection interval is for TCP Client Operation, including TCP Client of the mixed mode.
• This option is requires in order to re-connect TCP communication in case it is lost.
• The setting must be at least 1ms.

• Range: Up to 8-bytes string
  • Default: Null (Not used)
• The search identification code is for identifying the device search¹³⁾.
• If this option is selected, the assigned code must be entered when searching devices.

Figure: Search ID code (UDP broadcast search)

• Range: Up to 8-bytes string
  • Default: Null (Not used)
• Connection password is available for TCP server mode (including TCP server mode of the mixed mode).
• TCP client must send the connection password character upon connecting to WIZ750SR in order for data communication.
• TCP connection will be disconnected if the password does not match

• Send Keep-Alive: Enable
  • This option allows the connection status to be kept alive by sending the ‘keep-alive packet’ in all three TCP modes. (TCP server, TCP client, and TCP mixed mode)
    • Default: Enabled (recommended)
  • TCP connection is disconnected if there is no response to the ‘keep-alive’ packet. (Socket close / disconnect)
  • The ‘keep-alive’ packet is sent after the Ethernet packet is sent at least once from WIZ750SR.

• Send Keep-Alive Interval
  • Range: 0 ~ 65535, Unit: milliseconds(ms)
    • Default: 7000, 5000 (recommended, 7 seconds / 5 seconds)
  • The required interval for sending the ‘keep alive’ packet is as below.
    • The time until the first ‘keep-alive’ packet is sent
    • The time interval between each ‘keep-alive’ packets

• This option is recommended in case of a physical disconnection with the remote device.
  • This options is recommended especially in TCP server mode.

Device Search
Firmware Upload
Figures: Progress Bar

• Shows the result of search.
  • MAC addresses will be shown together if multiple devices are searched.
• The progress bar is shown during firmware updates.