WIZ120SR-EVB WIZnet, WIZ120SR-EVB Datasheet - Page 16

• Manufacturer Part Number: WIZ120SR-EVB
• Description: Interface Development Tools EVALUATION BOARD FOR WIZ120SR
• Manufacturer: WIZnet
• Type: Serial to Ethernetr

Specifications of WIZ120SR-EVB

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: WIZ120SR
• Interface Type: Ethernet, RS-232
• Operating Supply Voltage: 5 V
• Dimensions: 110 mm x 60 mm
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Operating Supply Current: 200 mA

system can connect to the module after the inactivity time elapsed.
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.
③ Data 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,
- Size: This field specifies the size limit in the serial buffer. Once the serial buffer reaches
- Character: Register a character to trigger the conversion of serial data to network packets.
④ Operation 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
WIZ120SR User‟s Manual (WIZnet, Inc.)
Inactivity Time can also be used when the server system is unexpectedly shut down. In this
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.
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)
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.
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)
(„0‟: Function Disable)
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