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5.2 Ethernet Module (AXM-NET)
5.2.1 Introduction to Ethernet
Ethernet was originally developed by Xerox and then developed further by
Xerox, DEC, and Intel. Ethernet uses a Carrier Sense Multiple Access with
Collision Detection (CSMA/CD) protocol, and provides transmission speeds up
to 10 Mbps.
Now Ethernet stands for LAN with CSMA/CD protocol.
Ethernet is the most current communication standard in LAN. This standard
denes the used type of cable and the method of Signal processing in LAN.
5.2.2 Function Description of Ethernet module
Please read appendix of technical data and specications of Ethernet module
before using.
* The Ethernet module supports Modbus-TCP protocol. It is used as a server,
the default value of the protocol port is 502, and the user dened range of the
protocol port is 2000~5999. The device address is communication address
2(0×1031H).
* The Ethernet module supports SMTP protocol. It has an email function and
supports “Send mail for timing” mode and “Send mail for event” mode.
* The Ethernet module supports HTTP protocol. It is used as an HTTP server, the
default value of the protocol port is 80, and the scope of the protocol port is
6000~9999.
* The Ethernet module supports SNTP protocol. It can get update time to
Coordinated Universal Time (UTC).
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