AccuEnergy AcuRev 2000, Руководство пользователя

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5.3 Ethernet communication
5.3.1 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 defines the
used type of cable and the method of Signal processing in LAN.
5.3.2 Function Description of Ethernet module
Please read appendix of technical data and specifications 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 defined range of the protocol port is
2000~5999. The device address is the same as the meter.
* 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 SNMP protocol. It is used as a SNMP agent, providing
management to MIB library, so you can get data from the meter.
* The Ethernet module supports SNTP protocol. It can get update time to Coordinated
Universal Time (UTC).