Technical data

Glossary • 353

WAGO-I/O-SYSTEM 750

BACnet/IP Controller

UDP (Users Datagram Protocol)

The user datagram protocol is a communication protocol between two com-

puters and an alternative to TCP (Transmission Control Protocol). As with

TCP, UDP communicates via Internet Protocol, although it is somewhat less

reliable due to its uncontrolled communication method.

URL (Uniform Resource Locator)

Address form for Internet files which are mostly applied within the World

Wide Web (WWW). The URL format makes a unique designation of all

documents on the internet possible. It describes the address of a document or

objects that can be read by a web browser. URL includes the transmission

type (HTTP, FTP), the computer that contains the information and the path

on the computer. A URL has the following format:

Document type://Computer name/List of contents/File name.

UTP (Unshielded Twisted Pair)

The UTP cable is a symmetrical, non-protected cable with twisted colored

wires in pairs. This cable type, either of a two-pair or four-pair design, is the

cable type most used for floor wiring and terminal wiring.

Vendor ID (BACnet)

The BACnet standard defines numerical identifiers for suppliers. These IDs

can be obtained free of charge from ASHRAE and are a prerequisite for de-

velopment, marketing and operation of BACnet components in a standard

BACnet network.

The vendor ID for WAGO Kontakttechnik GmbH & Co. KG is "222". A list

of all assigned vendor IDs is available at the following Internet page:

http://www.bacnet.org/VendorID/index.html