Schneider TAC XENTA 701 Building Controller

Description

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The Schneider Electric TAC Xenta 701 is a high-performance, web-based controller and presentation server designed for building automation and control systems (BACS). It belongs to the legacy TAC Xenta product line, utilizing open standard communication protocols to manage HVAC, lighting, and other facility management subsystems.

Product Detailed Description

The TAC Xenta 701 is a multifunctional central device. It acts both as a network controller for a LonWorks network and as an embedded web server. This allows facility managers to access their building management system (BMS) remotely using a standard web browser, eliminating the absolute need for specialized, dedicated client software for basic monitoring and operation. It can store graphics, trend logs, and alarm profiles locally.

Technical Parameters

Product Advantages

• Web-Based Accessibility: Provides full access to graphics, scheduling, and alarms via a traditional web browser, enabling off-site troubleshooting and multi-user access.
• Open System Interoperability: Uses the LonWorks standard protocol, allowing it to integrate seamlessly with both Schneider Electric TAC components and third-party LonMark-certified devices.
• Autonomous Operation: Even if the Ethernet connection to the central server is lost, the Xenta 701 continues to execute control strategies, manage local schedules, and log historical data.
• Flexible Scalability: Can act as a standalone web controller for a small building or be networked with other Xenta units (like Xenta 200, 300, or 400 series I/O modules) for large-scale enterprise installations.

Important Considerations & Precautions

• Legacy Lifecycle Status: As part of the older TAC Xenta ecosystem, this hardware may have limited direct support or firmware updates compared to modern EcoStruxure Automation Server alternatives. Plan ahead for long-term migrations.
• Network Security: Because the device connects directly to Ethernet networks for web access, it must be placed behind a secure firewall or within a dedicated Virtual Private Network (VPN) to prevent unauthorized entry.
• LonWorks Topology Rules: Strictly follow LonWorks installation guidelines regarding total cable lengths, termination resistors, and free-topology versus bus-topology wiring limits to avoid communication packets dropping.
• Memory Limits: Be mindful of the local flash storage size when hosting complex, high-resolution graphic files or excessively long trend logs directly on the module.

Product Applications

The TAC Xenta 701 is typically deployed in medium-to-large commercial and institutional buildings:

• HVAC Control Systems: Managing central plant equipment, air handling units (AHUs), and chiller/boiler optimization routines.
• Remote Substation Monitoring: Acting as the local internet gateway for unmanned utility sites or remote pumping stations.
• Commercial Building Management: Interfacing lighting, security status, and energy metering onto a unified graphical web dashboard.
• Institutional Campuses: Serving as a localized building hub that reports back to a central master SCADA/BMS supervisor software.

Shipping Port: Xiamen, China

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