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CHAPTER 1 FEATURES
1
CHAPTER 1 FEATURES
An Ethernet module (hereafter abbreviated as E71) is an interface module on the programmable controller side for
connecting a programmable controller system to the host system, such as a personal computer and a workstation,
over Ethernet. The module can collect and modify programmable controller data, monitor and control CPU operating
status, and exchange data in TCP/IP or UDP/IP.
The E71 has the following basic functions.
• Connection with MELSOFT products and a GOT
• Collection and modification of CPU module data from connected devices (MC protocol communications)
• Communications using SLMP
• Data communications using the predefined protocol (predefined protocol support function)
• Exchange of data with connected devices (communications using a fixed buffer and random access buffer)
• Prevention of unauthorized access through the IP filter (IP filter function)
• Prevention of unauthorized access through a remote password (remote password)
• E-mail sending/receiving (e-mail function)
• Data sending/receiving using the Web function
Another stationOwn station Connected device Connected device Web server
Programming tool
Internet
Connected device Connected device
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