Schneider TAC Xenta 301 Programmable Logic Controller (PLC)

Description

Schneider TAC Xenta 301 Programmable Logic Controller (PLC)

The Schneider Electric (formerly TAC) Xenta 301 is a programmable LonWorks-based controller designed primarily for managing and controlling various HVAC (Heating, Ventilation, and Air Conditioning) applications within commercial buildings. It is part of the Xenta 300 series of controllers.

📋 Product Details and Specifications (Product Parameters)

The Xenta 301 is a versatile control unit with a good balance of inputs and outputs for standard applications.

Key Features:

• Programmability: It is fully programmable using the Xenta programming tool (TAC Menta), allowing for customized control strategies.

• Network: Utilizes the LonWorks (Echelon) communication protocol, enabling integration into larger Building Management Systems (BMS).

• Local Display/Interface (Optional): Can be connected to an optional operator panel (e.g., Xenta 401) for local monitoring and parameter changes.

• Real-Time Clock (RTC): Built-in RTC for scheduling and time-dependent control functions.

Technical Specifications (Sample Parameters):

✨ Product Advantages

• Flexibility and Customization: Full programmability via Menta software allows for highly specific and complex control routines tailored to the exact requirements of a facility.

• Standardized Communication: LonWorks protocol ensures interoperability with a vast array of LonWorks devices and integration into existing LonWorks BMS infrastructure.

• Reliability: Designed for robust, continuous operation in commercial environments, typical of Schneider Electric/TAC products.

• Comprehensive I/O Mix: The combination of universal inputs and digital outputs is suitable for controlling common HVAC equipment like VAV boxes, fan coil units, and small air handling units.

• Scalability: As part of the Xenta 300 family, it can be easily integrated into a larger, centralized control system.

⚠️ Precautions (Important Notes)

• Software Dependency: Programming and advanced configuration require the proprietary TAC Menta software.

• Wiring: Always adhere to local electrical codes and the product’s installation manual regarding power supply voltage (24V AC/DC) and I/O wiring. Proper shielding and grounding are crucial for LonWorks communication reliability.

• Backup: Ensure the controller’s program and configuration are regularly backed up, especially before making significant changes.

• Environmental Limits: Install the controller within its specified temperature and humidity limits to ensure longevity.

• End-of-Life Status: As technology evolves, always check the current lifecycle status of the Xenta 301, as it may be considered a legacy product and require migration planning in modern systems.

🌍 Product Application

The Xenta 301 is primarily used for Distributed HVAC Control in commercial and institutional buildings.

• Fan Coil Unit (FCU) Control: Managing the speed of the fan and the position of water valves for zone temperature control.

• Variable Air Volume (VAV) Box Control: Regulating airflow and heating/cooling delivery to individual spaces.

• Small Air Handling Unit (AHU) Control: Basic management of a small AHU, including fan status, damper control, and temperature/humidity sensing.

• Lighting and Shading Control: Can be used for localized or coordinated control of lighting circuits or automated window shades (depending on the program).

• General Purpose Control: Any application requiring a small, networked controller with digital and analog I/O capabilities.

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