ISO/TC 205/WG 3 - Building Automation and Control System (BACS) Design

This document contains information to support the correct understanding, use and adoption of ISO 52120‑1.

This document specifies: — a structured list of control, building automation and technical building management functions which contribute to the energy performance of buildings; functions have been categorized and structured according to building disciplines and building automation and control (BAC); — a method to define minimum requirements or any specification regarding the control, building automation and technical building management functions contributing to energy efficiency of a building to be implemented in building of different complexities; — a factor-based method to get a first estimation of the effect of these functions on typical buildings types and use profiles; — detailed methods to assess the effect of these functions on a given building.

This document contains information to support the correct understanding, use and adoption of ISO 52127-1.

This document specifies operational activities, overall alarming, fault detection and diagnostics, reporting, monitoring, energy management functions, functional interlocks and optimizations to set and maintain energy performance of buildings.

This standard provides a comprehensive set of procedures for verifying the correct implementation of each capability claimed on a BACnet PICS including: (a) support of each claimed BACnet service, either as an initiator, executor, or both, (b) support of each claimed BACnet object-type, including both required properties and each claimed optional property, (c) support of the BACnet network layer protocol, (d) support of each claimed data link option, and (e) support of all claimed special functionality.

ISO 17800:2017 provides the basis for common information exchange between control systems and end use devices found in single - and multi-family homes, commercial and institutional buildings, and industrial facilities that is independent of the communication protocol in use. It provides a common basis for electrical energy consumers to describe, manage, and communicate about electrical energy consumption and forecasts. ISO 17800:2017 defines a comprehensive set of data objects and actions that support a wide range of energy management applications and electrical service provider interactions including: a) on-site generation, b) demand response, c) electrical storage, d) peak demand management, e) forward power usage estimation, f) load shedding capability estimation, g) end load monitoring (sub metering), h) power quality of service monitoring, i) utilization of historical energy consumption data, and j) direct load control.

ISO 16484-3:2005 specifies the requirements for the overall functionality and engineering services to achieve building automation and control systems. It defines terms, which shall be used for specifications and it gives guidelines for the functional documentation of project/application specific systems. It provides a sample template for documentation of plant/application specific functions, called BACS points list. The informative function block examples explain a method to display the referenced functions in system documentation; they do not standardize the method for programming functions and applications. ISO 16484-3:2005 covers requirements and definitions regarding BACS and application software, generic functions for plant/project specific applications and engineering functions for building controls and operations. It provides communication functions for the integration of other dedicated special system processes. ISO 16484-3:2005 defines a method for specifying the procurement specifications containing all essential elements required for the operational functioning of a BACS. The successful installation and operation of a BACS requires that its procurement be based on a complete and accurate functional specification.

ISO 16484-2:2004 specifies the requirements for the hardware to perform the tasks within a building automation and control system (BACS). It provides the terms, definitions and abbreviations for the understanding of ISO 16484-2 and ISO 16484-3. ISO 16484-2:2004 relates only to physical items/devices, i.e. devices for management functions, operator stations and other human system interface devices; controllers, automation stations and application specific controllers; field devices and their interfaces; cabling and interconnection of devices; engineering and commissioning tools. ISO 16484-2:2004 shows a generic system model to which all different types of BACS and their interconnections (BACS network) can fit. A graphical concept of the BACS network in terms of LAN topology will be provided in ISO 16484-5.

The purpose of ISO 16484-5:2017 is to define data communication services and protocols for computer equipment used for monitoring and control of HVAC&R and other building systems and to define, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.

ISO 16484-6:2014 defines a standard method for verifying that an implementation of the BACnet protocol provides each capability claimed in its Protocol Implementation Conformance Statement (PICS) in conformance with the BACnet standard. ISO 16484-6:2014 provides a comprehensive set of procedures for verifying the correct implementation of each capability claimed on a BACnet PICS, including support of each claimed BACnet service, either as an initiator, executor, or both, support of each claimed BACnet object-type, including both required properties and each claimed optional property,support of the BACnet network layer protocol,support of each claimed data link option, andsupport of all claimed special functionality.

ISO 16484-5:2014 defines data communication services and protocols for computer equipment used for monitoring and control of heating, ventilation, air-conditioning and refrigeration (HVAC&R) and other building systems. It defines, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings. It provides a comprehensive set of messages for conveying encoded binary, analog, and alphanumeric data between devices including, but not limited to, hardware binary input and output values, hardware analog input and output values,software binary and analog values, text string values, schedule information, alarm and event information, files, and control logic. It models each building automation and control computer as a collection of data structures called "objects," the properties of which represent various aspects of the hardware, software, and operation of the device. These objects provide a means of identifying and accessing information without requiring knowledge of the details of the device's internal design or configuration.

ISO 16484-5:2012 defines data communication services and protocols for computer equipment used for monitoring and control of heating, ventilation, air-conditioning and refrigeration (HVAC&R) and other building systems. It defines, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.

ISO 16484-5:2010 defines data communication services and protocols for computer equipment used for monitoring and control of heating, ventilation, air-conditioning and refrigeration (HVAC&R) and other building systems. It defines, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.

ISO 16484-1:2010 specifies guiding principles for project design and implementation and for the integration of other systems into the building automation and control systems (BACS). ISO 16484-1:2010 specifies the phases required for the BACS project, including: design (determination of project requirements and production of design documents including technical specifications), engineering (detailed function and hardware design), installation (installing and commissioning of the BACS), and completion (handover, acceptance and project finalization). ISO 16484-1:2010 also specifies the requirements for as-built documentation and training. ISO 16484-1:2010 is not applicable to operation and maintenance, nor is it applicable to retro or continuous commissioning, including a commissioning authority.

ISO 16484-6:2009 defines a standard method for verifying that an implementation of the BACnet protocol provides each capability claimed in its Protocol Implementation Conformance Statement (PICS) in conformance with the BACnet standard. ISO 16484-6:2009 provides a comprehensive set of procedures for verifying the correct implementation of each capability claimed on a BACnet PICS, including upport of each claimed BACnet service, either as an initiator, executor, or both, support of each claimed BACnet object-type, including both required properties and each claimed optional property, support of the BACnet network layer protocol, support of each claimed data link option, and support of all claimed special functionality.

ISO 16484-5:2007 defines data communication services and protocols for computer equipment used for monitoring and control of heating, ventilation, air-conditioning and refrigeration (HVAC&R) and other building systems. It defines, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings. ISO 16484-5:2007 provides a comprehensive set of messages for conveying encoded binary, analog, and alphanumeric data between devices including, but not limited to hardware binary input and output values, hardware analog input and output values, software binary and analog values, text string values, schedule information, alarm and event information, files, and control logic.

ISO 16484-6:2005 defines a standard method for verifying that an implementation of the BACnet protocol provides each capability claimed in its Protocol Implementation Conformance Statement (PICS) in conformance with the BACnet standard (ISO 16484-5). ISO 16484-6:2005 provides a comprehensive set of procedures for verifying the correct implementation of each capability claimed on a BACnet PICS, including the following: support of each claimed BACnet service, either as an initiator, executor, or both; support of each claimed BACnet object-type, including both required properties and each claimed optional property; support of the BACnet network layer protocol; support of each claimed data link option; support of all claimed special functionality.

ISO 16484-5:2003 defines data communication services and protocols for computer equipment used for monitoring and control of heating, ventilation, air-conditioning and refrigeration and other building systems. It defines, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.