Technical data

332 • Glossary
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
BACnet Configurator
The BACnet Configurator is free software that is used for commissioning
and configuration of WAGO BACnet/IP controllers. This includes, among
other things, logical structuring of the project and network, addressing of the
controller, configuration of the client and the service in every WAGO con-
troller and a value browser (for BACnet object properties). The BACnet
Configurator is a separate, dedicated software and should not be confused
with the I/O Configurator for the WAGO I/O-PRO CAA.
BACnet Data Types
Services utilize standardized BACnet data types and communication units,
so-called application layer protocol data units (APDUs) that are defined in
an abstract ASN.8824 syntax in accordance with ISO Standard 1 to ensure
uniform data transfer.
Elementary data types such as BOOLEAN and INTEGER, and defined
BACnet base types are used which consist of SEQUENCES und CHOICES,
for example. The latter are made up of elementary or nested, compiled data
types.
BACnet/IP
BACnet/IP is a standardized and company-neutral network protocol for
building automation services used primarily in the HVAC sector.
This protocol supports building-specific, standard objects and services for
integrating devices within networks to ensure interoperability.
This protocol is defined in three (3) layers: BACnet Virtual Link Layer
(BVLL) as a backup and bit transfer layer, BACnet Network Layer as the
transfer layer and BACnet Application as the application layer. ARCNET,
ETHERNET, BACnet/IP, PTP (Point-To-Point) are supported via RS232;
MS/TP (Master Slave/Token Passing) via RS485 and LonTalk
ANSI/EIA709.1 on the backup and bit transfer layer.
Communication between different devices is executed based on the cli-
ent/server method, with each device able to act as a client or as a server.
This protocol, which has been an ASHRAE standard since 1995, was ac-
cepted as a standard by ANSI (ANSI/ASHRAE 135-2004) and has become
anchored in the DIN EN ISO standard 16484-5 (Building Automation Sys-
tems, Data Communication Protocols).