INTERNET OF THINGS
UNIT_II PART-II
,BACnet
BACnet (Building Automation and Control Network) is a data communications protocol that
defines the services used to communicate between building automation end-devices and building
control systems.
A data communication protocol is a set of rules governing the exchange of data over a computer
network that covers everything from what kind of cable to use to how to form a particular request
or command in a standard way.
The BACnet protocol is a completely non-proprietary open communication software standard.
There are no proprietary chip sets or special electronics required to implement it.
The standard itself is now controlled by the ANSI (American National Standards Institute) and
ASHRAE (American Society of Heating Refrigeration and Air-Conditioning Engineers) Standard
135- 1995.
The intent of this open standard is to allow building owners the opportunity to pick and choose
BACnet-compliant equipment from various vendors.
,“Building Automation and Control Networks” (BACnet) is a data transfer
protocol for building automation and control. BACnet simplifies communication
between products from different manufacturers within building automation.
● Standardized data exchange for building automation
● Uniform communication on the management, automation and field level
● Cross-system integration of devices of different building control systems, e.g., elevator
surveillance, access control, power supply or radio applications
The protocol allows equipment such as air conditioning units, pumps and ventilation devices to
communicate with a programmable logic controller (PLC). This creates buildings with a high
degree of automation
, BACnet device
A BACnet device is often comprised of a microprocessor-based controller and
software combination that is designed to understand and use the BACnet protocol.
A BACnet device is typically a controller, gateway, or user interface.
Every BACnet device contains a device object that defines certain device
information, including the device object identifier or instance number.
A BACnet device object instance number must be field-configurable to be unique
across the entire BACnet network where the device in installed. For brevity this
number is often called the device instance.
In addition to the device instance, each BACnet device contains a collection of
information about the device and any input and output points that it monitors and
controls.
UNIT_II PART-II
,BACnet
BACnet (Building Automation and Control Network) is a data communications protocol that
defines the services used to communicate between building automation end-devices and building
control systems.
A data communication protocol is a set of rules governing the exchange of data over a computer
network that covers everything from what kind of cable to use to how to form a particular request
or command in a standard way.
The BACnet protocol is a completely non-proprietary open communication software standard.
There are no proprietary chip sets or special electronics required to implement it.
The standard itself is now controlled by the ANSI (American National Standards Institute) and
ASHRAE (American Society of Heating Refrigeration and Air-Conditioning Engineers) Standard
135- 1995.
The intent of this open standard is to allow building owners the opportunity to pick and choose
BACnet-compliant equipment from various vendors.
,“Building Automation and Control Networks” (BACnet) is a data transfer
protocol for building automation and control. BACnet simplifies communication
between products from different manufacturers within building automation.
● Standardized data exchange for building automation
● Uniform communication on the management, automation and field level
● Cross-system integration of devices of different building control systems, e.g., elevator
surveillance, access control, power supply or radio applications
The protocol allows equipment such as air conditioning units, pumps and ventilation devices to
communicate with a programmable logic controller (PLC). This creates buildings with a high
degree of automation
, BACnet device
A BACnet device is often comprised of a microprocessor-based controller and
software combination that is designed to understand and use the BACnet protocol.
A BACnet device is typically a controller, gateway, or user interface.
Every BACnet device contains a device object that defines certain device
information, including the device object identifier or instance number.
A BACnet device object instance number must be field-configurable to be unique
across the entire BACnet network where the device in installed. For brevity this
number is often called the device instance.
In addition to the device instance, each BACnet device contains a collection of
information about the device and any input and output points that it monitors and
controls.
