Description

The Schneider Electric AS-BDAU-204 is a sophisticated data acquisition and processing unit designed for integration within Schneider Electric’s extensive building management and automation systems. This advanced module serves as a critical interface between field devices and higher-level building management systems, enabling comprehensive data collection, processing, and distribution across modern building automation networks. The Schneider Electric AS-BDAU-204 is engineered to provide reliable data acquisition from various sensors and actuators while offering local control capabilities for building automation applications. Its robust design and advanced communication capabilities make it an essential component in creating intelligent building ecosystems that optimize energy efficiency, operational performance, and occupant comfort through precise environmental monitoring and control.

As part of Schneider Electric’s building management solutions, the Schneider Electric AS-BDAU-204 supports multiple communication protocols and interfaces, allowing seamless integration with diverse building systems including HVAC, lighting, access control, and energy management systems. The unit typically features powerful processing capabilities that enable local execution of control strategies, reducing dependence on central servers and enhancing system responsiveness. The modular design and scalable architecture of the Schneider Electric AS-BDAU-204 facilitate flexible system configuration and future expansion, making it suitable for both new installations and retrofit projects in commercial, institutional, and industrial buildings.

AS-BDAU-204 SCHNEIDER

Technical Specifications

Parameter Name	Parameter Value
Product Model	AS-BDAU-204
Manufacturer	Schneider Electric
Product Type	Building Data Acquisition Unit
Processor	32-bit RISC processor
Memory	32 MB RAM, 16 MB Flash
Digital Inputs	8 universal inputs (configurable)
Analog Inputs	8 inputs (0-10V, 0-20mA, configurable)
Digital Outputs	4 relay outputs (5A, 250V AC)
Analog Outputs	4 outputs (0-10V, 0-20mA)
Communication Ports	2x RS-485, 1x Ethernet 10/100BASE-T
Protocol Support	Modbus, BACnet IP, BACnet MSTP, TCP/IP
Operating Voltage	24V AC/DC ±15%
Power Consumption	15W typical
Operating Temperature	0 to 50°C (32 to 122°F)
Relative Humidity	10 to 90% non-condensing
Enclosure Rating	IP20

Main Features and Advantages

The Schneider Electric AS-BDAU-204 offers exceptional flexibility through its universal input configuration capability, allowing each input channel to be software-configured for various signal types including digital, analog, and pulse counting functions. This versatility significantly reduces spare parts inventory and simplifies system design. The unit features advanced data processing capabilities with local storage and trend logging functions, enabling comprehensive data analysis and reporting without constant communication with central servers. Its robust construction ensures reliable operation in typical building environments, while the wide operating voltage range provides stability during power fluctuations.

The multi-protocol communication capability of the Schneider Electric AS-BDAU-204 allows seamless integration with building management systems from various manufacturers, ensuring interoperability in multi-vendor environments. The unit supports advanced control algorithms and scheduling functions, enabling sophisticated local control strategies that optimize energy usage and equipment performance. The web server functionality provides direct access for configuration, monitoring, and troubleshooting through standard web browsers, reducing the need for specialized software tools. These features, combined with Schneider Electric’s comprehensive support ecosystem, make the Schneider Electric AS-BDAU-204 a reliable and future-proof solution for modern building automation challenges.

Application Field

The Schneider Electric AS-BDAU-204 is extensively deployed in commercial building automation systems for monitoring and controlling HVAC equipment, including air handling units, fan coil units, and VAV boxes. In office buildings, the unit manages environmental parameters such as temperature, humidity, and air quality while optimizing energy consumption through sophisticated control strategies. The retail sector utilizes the Schneider Electric AS-BDAU-204 for store-level automation, controlling lighting, HVAC, and other building systems to maintain comfortable shopping environments while minimizing operational costs. Educational institutions employ these units for campus-wide building management, enabling centralized monitoring and control of multiple buildings from a single platform.

Healthcare facilities benefit from the Schneider Electric AS-BDAU-204‘s precise environmental control capabilities for maintaining strict temperature and humidity requirements in critical areas such as operating rooms and laboratories. The hospitality industry uses these units for hotel room automation, integrating HVAC, lighting, and curtain control to enhance guest comfort while optimizing energy usage. In industrial facilities, the Schneider Electric AS-BDAU-204 provides reliable monitoring and control of support systems including ventilation, compressed air, and process cooling equipment. The unit’s flexibility and robustness also make it suitable for specialized applications in museums, archives, and data centers where precise environmental control is essential.

AS-BDAU-204 SCHNEIDER

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