Novatek ET- 485, Руководство пользователя

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ET-485
NOVATEK-ELECTRO
Terms and abbreviations

10Base-T
–
Ethernet standard for twisted pair communication with the speed of 10Mbit/s;

100Base-T
–
Ethernet standard for twisted pair communication with the speed of 100Mbit/s;

8P8C/RJ45
–
is an unified socket for 10Base-T / 100Base-T network connections;

Twisted pair
–
is a pair of insulated conductors inside the cable, which are twisted together in order to reduce the distortion of the transmitted
signal;

Indicator
– is a LED element;

Client
–
is a device, which is addressing the other devices (server) with a request to perform certain functions;

Package
–
is a block of data to be transmitted between devices;

Unit
–
is the ЕТ-485 Protocol converter;

Server
–
is a unit, which performs specific functions at the request of other units;

ASCII
–
is a table of standard codes for information interchange;

Ethernet
–
is a standard for packet network communication and transmitting data between units (e.g., PCs);

HTTP
–
is a protocol for transferring Web-pages and other data over "client-server " technology;

Internet
–
is a global routing system of units for storing and transferring data;

IP (protocol)
–
is a routable protocol for transferring data over Ethernet. It is a part of TCP/IP and used for Internet;

IP (address)
–
is a node address, which is unique within a single network, operating over the IP protocol;

IPv4
–
is a four byte IP-address;

MAC (address)
–
is an address, used for device authentication during Ethernet transmissions. It is usually unique although qualified personnel can
change it under certain circumstances.

MAC-48
–
is a six byte MAC-address;

Modbus
– is a standard and protocol for packet communication over the "client-server " technology for industrial electronic units;

Modbus RTU
–
is a communication protocol of the unit for bite wise transfer of the package;

Modbus ASCII
–
is a communication protocol of the unit for the transfer of package in the form of ASCII-symbols;

Modbus TCP
– is a protocol for transferring Modbus packages under the TCP/IP standard;

RS-485/EIA-485
–
is a network standard for communicating units over the twisted pair;

TCP/IP
–
is a standard and a set of protocols for transferring data along the networks with delivery verification;

WEB
–
is a system for accessing documents on the server, used in the Internet.

WEB-page
–
is a document, file, recourse, which is available on the Web-server;

WEB-browser
–
is a WEB-server client for accessing the WEB-pages, which is primarily using the HTTP protocol.