DEI-2288NE Direct Digital Controller – 8 Inputs / 8 Outputs for BMS Systems
Posted on: 06/08/2026
Medium and large-scale AHU and HVAC systems often require a central controller capable of handling multiple input/output signals simultaneously, while easily integrating into Building Management Systems (BMS). The DEI-2288NE Direct Digital Controller (DDC) meets these demands exceptionally well and is officially distributed by DLK from the DEI brand (Taiwan).
Introduction to DEI-2288NE
DEI-2288NE is a high-performance DDC controller specifically designed to monitor and operate HVAC, AHU, and smart building automation systems. With a flexible configuration of 8 inputs and 8 outputs (AI/DI, AO/DO), the device allows for the control of diverse peripheral devices such as fans, valves, and sensors within a single unit.
Detailed Technical Specifications
|
Parameter |
Details |
|
Brand |
DEI (TAIWAN) |
|
Power Supply |
24 VAC/VDC, 50/60 Hz |
|
Communication Port |
RS-485 (Modbus RTU) |
|
Number of Inputs |
8 (Flexible AI/DI configuration) |
|
Number of Outputs |
8 (Flexible AO/DO configuration) |
|
Operating Temperature |
0°C to 50°C (32°F to 122°F) |
|
Operating Humidity |
10% to 90% RH (non-condensing) |
|
Mounting Type |
Standard DIN Rail |
|
Display |
Integrated LCD and push buttons for direct operation |
|
Warranty |
12 months (optional upgrade to 36 months) |
Installation and Usage Instructions
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Mounting: Install the controller inside the electrical enclosure on a standard DIN rail, ensuring a well-ventilated location away from excessive temperature and humidity.
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I/O Mapping: Identify and map out the input/output allocation (I/O mapping) for each connected peripheral device (temperature sensors, valves, fans, etc.) before wiring.
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Wiring: Connect the 24 VAC/VDC power supply and wire the inputs/outputs strictly according to the established I/O mapping table, using signal wires with suitable cross-sectional areas.
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BMS Bus Connection: Wire the RS-485 (Modbus RTU) bus back to the central BMS system and set a unique device address to avoid conflicts with other devices on the network.
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Logic Programming: Program intelligent control logic via the configuration software (refer to the technical catalog) to optimize energy usage and system performance.
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Local Verification: Use the built-in LCD screen and push buttons to check input/output statuses directly on the controller.
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Commissioning: Test the complete system to confirm stable Modbus communication and verify that all peripheral devices respond correctly according to the programmed logic.
Note: When connecting multiple DEI-2288NE controllers on the same RS-485 bus, ensure termination resistors are properly installed at both ends of the bus line to prevent signal interference.
Practical Applications
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Centralized monitoring and control for AHU and FCU systems in smart buildings.
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Integration of various sensors (temperature, humidity, pressure) and actuators/drives (valves, fans) into a single controller.
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Seamless connection to BMS systems via Modbus RTU for unified operational management.
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Ideal for projects requiring customized, flexible control logic tailored to specific operational needs.
Why Buy DEI-2288NE at DLK?
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100% Authentic DEI Products: Imported directly with complete CO/CQ documentation.
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Technical Expertise: Comprehensive support in creating I/O mapping tables and control logic suited to your system.
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Full Documentation: Full technical catalogs (PDF) provided for project submissions.
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Transparent Warranty: Clear warranty terms and prompt post-sales technical support.
Contact DLK for Consultation & Quotation
Looking to purchase genuine DEI-2288NE direct digital controllers with full CO/CQ documentation and fast nationwide delivery? Contact DLK TRADING SERVICE COMPANY LIMITED today for expert technical advice and competitive pricing.