Honeywell IQ3XCITE-128-100-240

Product Overview
The IQ3XCITE-128-100-240 is a Honeywell IQ3XCITE series programmable controller used in building automation, HVAC control, and intelligent facility management systems. The IQ3XCITE family provides embedded control logic, network communication, scheduling, alarming, and integration capabilities for commercial buildings, campuses, hospitals, data centers, and industrial facilities. The model number indicates an IQ3XCITE controller with 128-point capacity, a 100-series hardware variant, and 240 V AC power supply.

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Description

Honeywell IQ3XCITE-128-100-240

Technical Specifications

  • Brand: Honeywell
  • Product Family: IQ3XCITE
  • Model: IQ3XCITE-128-100-240
  • Controller Type: Programmable automation controller
  • Point Capacity: 128 points depending on configuration
  • Power Supply: 240 V AC
  • Communication: Ethernet-based building automation network depending on configuration
  • Application Domain: HVAC, building automation, energy management
  • Mounting: DIN rail or panel mounting depending on enclosure

Functional Features

  • Executes control logic for HVAC and building automation systems.
  • Supports up to 128 control points depending on configuration.
  • Provides scheduling, setpoint control, and alarm management.
  • Integrates with Honeywell building management platforms.
  • Supports analog and digital I/O expansion depending on connected modules.
  • Provides network communication for remote monitoring and configuration.
  • Supports trend logging and historical data storage.
  • Allows programming of control sequences for air handling units, chillers, boilers, fans, pumps, and dampers.

Application Scenarios

  • Commercial office building HVAC control
  • Hospital and healthcare facility environmental control
  • Data center cooling and monitoring
  • Campus-wide building automation
  • Industrial facility energy management
  • Chiller plant and boiler plant control
  • Air handling unit and fan coil unit supervision

Performance Parameters

  • Point capacity: 128 points
  • Power supply: 240 V AC
  • Control execution: programmable logic depending on application
  • Network interface: Ethernet-based building automation communication
  • I/O support: analog inputs, analog outputs, digital inputs, digital outputs depending on configuration
  • Data logging: trend and alarm history storage
  • Exact CPU speed, memory size, protocol support, and environmental ratings must be confirmed from the official IQ3XCITE datasheet.

Material Composition

  • Industrial-grade plastic or metal enclosure
  • Printed circuit board with microprocessor
  • Power supply module for 240 V AC operation
  • Ethernet communication interface
  • Terminal blocks for field wiring
  • Status indicator LEDs
  • Mounting brackets or DIN rail clips

Structural Features

  • Compact controller enclosure suitable for control panels.
  • Front or side terminal connections for field devices.
  • Ethernet port for network communication.
  • Status LEDs for power, communication, and fault indication.
  • Modular I/O expansion depending on system design.
  • DIN rail or panel-mount installation.
  • Clear labeling for power, network, and I/O terminals.

Working Principle
The IQ3XCITE-128-100-240 receives input signals from field devices such as temperature sensors, pressure transmitters, flow meters, status switches, and occupancy sensors. It executes programmed control logic to regulate HVAC equipment, energy systems, and building processes. The controller sends output commands to actuators, relays, variable frequency drives, and valves. It also communicates with supervisory systems for monitoring, alarming, scheduling, and historical data collection.

Installation Requirements

  • Verify 240 V AC power supply compatibility before wiring.
  • Install in a clean, dry, and ventilated control panel.
  • Use appropriate wire sizes for power and signal terminals.
  • Separate low-voltage signal wiring from high-voltage power wiring.
  • Connect the Ethernet port to the building automation network.
  • Assign a unique network address before commissioning.
  • Upload and verify control programs before placing equipment in automatic mode.
  • Follow local electrical codes and Honeywell installation guidelines.

Precautions

  • Do not connect power before verifying voltage rating.
  • Do not modify control logic without understanding equipment safety requirements.
  • Back up controller configuration before maintenance.
  • Verify I/O point assignments against field wiring.
  • Protect network access with appropriate security settings.
  • Confirm exact capabilities from the official IQ3XCITE product documentation, as features vary by model and firmware.