ISO 16484-2:2004

Overview

ISO 16484-2:2004 - Building automation and control systems (BACS) - Part 2: Hardware specifies requirements and vocabulary for the physical hardware components used in building automation. It defines terms, definitions and abbreviations needed to understand BACS hardware and to align with ISO 16484-3 (functions). The standard covers physical devices such as management servers, operator stations, controllers, field devices (sensors, actuators, room devices), cabling and interconnection, and engineering/commissioning tools. It also presents a generic system model to which varied BACS implementations and networks can be mapped.

Key topics and technical requirements

• Hardware scope and definitions: Standardized terminology for management devices, controllers, application-specific controllers, field devices, peripherals and interfaces.
• Performance and configuration: Requirements for basic hardware performance, system configuration and functionality allocation between devices.
• Management devices and operator interfaces: Requirements for data processing devices, server stations, peripherals and alarm/annunciation devices.
• Control devices: General requirements for controllers, automation stations and application-specific controllers used for building control tasks.
• Field devices: Requirements for sensors, actuators, coupling modules and local override/indication units.
• Cabling and interconnection: Guidance on physical cabling, device interfaces and the interconnection of devices within and between BACS networks.
• System communications: High-level requirements for communication between hardware components; protocol specifics are covered in ISO 16484-5.
• Engineering and commissioning tools: Requirements for tools used to configure, test and commission BACS hardware.
• Safety and environmental considerations: Informative annex on general safety requirements and environmental conditions for hardware deployment.

Practical applications

ISO 16484-2 is used when designing, procuring, installing and commissioning BACS hardware for:

• New building projects and retrofit/modernization of existing buildings
• Integration of HVAC, lighting, security, power distribution and facility management systems
• Defining procurement specifications that clearly allocate functions and hardware roles
• Ensuring interoperability and scalable networked building control architectures

Who uses this standard

• Architects, consulting engineers and system designers
• Manufacturers and product developers of controllers, sensors and BACS equipment
• Systems integrators, electrical/mechanical contractors and commissioning engineers
• Facility managers, building operators and educators in building automation

Related standards

• ISO 16484-1: Overview and definitions
• ISO 16484-3: Functions
• ISO 16484-4: Applications
• ISO 16484-5: Data communication protocol
• ISO 16484-6: Conformance testing
• ISO 16484-7: Project implementation

Keywords: ISO 16484-2, BACS hardware, building automation and control systems, controllers, sensors, actuators, cabling, BACS network, commissioning, engineering tools.