The Honeywell DC-TUIO31 is a multi-function input/output (I/O) module designed to serve as the nervous system of industrial control architectures. As part of Honeywell’s DC series of automation components, it integrates seamlessly with both standalone controllers and larger distributed control systems (DCS), including Honeywell’s own Experion platform.
Model DC-TUIO31
Brand Honeywell
Type Mixed-Signal Input/Output Module
Power Supply 24V DC (18-30V range)
Operating Temperature -20°C to 60°C (-4°F to 140°F)
Mounting DIN rail (35mm)
Dimensions 120mm (W) x 160mm (H) x 110mm (D)
Weight 450 grams
Digital Inputs 16 channels, 24V DC, 5mA max per channel
Analog Inputs 8 channels, 4-20mA / 0-10V, 16-bit resolution
Digital Outputs 12 channels (8 relay, 4 transistor; 5A max)
Analog Outputs 4 channels, 4-20mA / 0-10V, 14-bit resolution
Communication RS485 (Modbus RTU), optional Ethernet/IP
Certifications CE, UL, CSA, ATEX Zone 2
Protection Rating IP20 (housing), IP40 (connections)
Isolation 2.5kV signal-to-ground
The Honeywell DC-TUIO31 is a multi-function input/output (I/O) module designed to serve as the nervous system of industrial control architectures. As part of Honeywell’s DC series of automation components, it integrates seamlessly with both standalone controllers and larger distributed control systems (DCS), including Honeywell’s own Experion platform.
DC-TUIO31
Unlike single-purpose I/O modules, the Honeywell DC-TUIO31 combines flexibility with ruggedness—its design accommodates both digital (on/off) and analog (variable) signals, eliminating the need for separate modules in mixed-signal environments. It functions as a translator between field devices (sensors, switches, valves, motors) and the central control system, converting raw sensor data into actionable information while relaying control commands to actuators. For system integrators, its value lies in its adaptability: it reduces cabinet space requirements through consolidated I/O handling and simplifies wiring complexity. Whether deployed in a new greenfield installation or retrofitted into an existing setup, the Honeywell DC-TUIO31 ensures reliable signal transmission, forming the critical link between operational equipment and decision-making systems.
DC-TUIO31
Main features and advantages:
The Honeywell DC-TUIO31 distinguishes itself through a blend of signal handling versatility and industrial-grade durability. Its core strength lies in its mixed-signal capability: it processes up to 16 digital inputs (24V DC) and 8 analog inputs (4-20mA/0-10V) while providing 12 digital outputs (relay/transistor) and 4 analog outputs—all within a compact 120mm-wide housing. This integration eliminates the need for multiple specialized modules, reducing both hardware costs and potential failure points.
A standout feature is its signal conditioning technology, which filters electrical noise common in factory environments. This ensures stable readings from proximity sensors in high-vibration areas like stamping presses, where electromagnetic interference from motors might otherwise corrupt data. The Honeywell DC-TUIO31 also offers configurable input ranges, allowing engineers to match sensor specifications without external resistors—a time-saver during setup.
Hardware-wise, it features a corrosion-resistant aluminum front panel and conformal-coated circuit boards, enabling reliable operation in environments with high humidity or airborne contaminants, such as food processing facilities or chemical plants. Its modular design allows for hot-swapping during maintenance, minimizing downtime when replacing modules in 24/7 operations. Compatibility with standard industrial protocols (Modbus RTU, Ethernet/IP) ensures it integrates smoothly with both Honeywell and third-party control systems, future-proofing installations against technology upgrades.
DC-TUIO31
Technical specifications:
Model DC-TUIO31
Brand Honeywell
Type Mixed-Signal Input/Output Module
Power Supply 24V DC (18-30V range)
Operating Temperature -20°C to 60°C (-4°F to 140°F)
Mounting DIN rail (35mm)
Dimensions 120mm (W) x 160mm (H) x 110mm (D)
Weight 450 grams
Digital Inputs 16 channels, 24V DC, 5mA max per channel
Analog Inputs 8 channels, 4-20mA / 0-10V, 16-bit resolution
Digital Outputs 12 channels (8 relay, 4 transistor; 5A max)
Analog Outputs 4 channels, 4-20mA / 0-10V, 14-bit resolution
Communication RS485 (Modbus RTU), optional Ethernet/IP
Certifications CE, UL, CSA, ATEX Zone 2
Protection Rating IP20 (housing), IP40 (connections)
Isolation 2.5kV signal-to-ground
Contact Us Phone:+86 16626708626 WeChat/WhatsApp:+86 16626708626 Email: 3772179818@qq.com
DC-TUIO31
Application areas:
In industrial automation environments where seamless coordination between sensors and actuators defines operational efficiency, the Honeywell DC-TUIO31 stands as a critical connectivity hub. This versatile module finds its place in diverse settings, from automotive assembly lines where it synchronizes robotic arms with conveyor belt sensors, to beverage bottling plants regulating filling valves based on container position data.
In packaging facilities, the Honeywell DC-TUIO31 excels at translating digital signals from photoelectric sensors into precise control commands for sealing machines—ensuring package integrity by adjusting heat levels based on real-time material flow. It’s equally vital in water treatment plants, where it processes analog inputs from pressure transducers to modulate pump speeds, maintaining consistent pipeline pressure across varying demand. Used in industrial automation setups ranging from small-scale material handling systems to large-scale chemical processing lines, the Honeywell DC-TUIO31 bridges the gap between field devices and control systems, ensuring data flows reliably to drive informed decisions. Its ability to handle both digital and analog signals makes it indispensable in hybrid environments where legacy equipment coexists with modern smart sensors.
DC-TUIO31
Related products:
Honeywell DC-TUIO11 – Compact version of the Honeywell DC-TUIO31 with 8 digital inputs and 4 outputs, ideal for space-constrained applications like laboratory automation.
Honeywell DC-TUIO51 – High-density variant offering 32 digital I/O points, designed for large-scale systems like automotive paint lines with extensive sensor networks.
Honeywell DC-PS24 – Redundant power supply module that ensures uninterrupted operation of the Honeywell DC-TUIO31 during mains failures.
Honeywell DC-ISO8 – Signal isolation module that eliminates ground loops between the Honeywell DC-TUIO31 and high-voltage industrial equipment.
Honeywell DC-ETH01 – Ethernet/IP communication card that upgrades the Honeywell DC-TUIO31 for direct integration with SCADA systems.
Honeywell TC-16PT – 16-point terminal block kit pre-wired for the Honeywell DC-TUIO31, reducing installation time by 40% in complex setups.
Honeywell DC-DIAG02 – Diagnostic tool that monitors the Honeywell DC-TUIO31’s output current levels, alerting to potential actuator faults.
Honeywell 51404440-100 – Calibration adapter used to verify the Honeywell DC-TUIO31’s analog signal accuracy during preventive maintenance.
DC-TUIO31
Installation and maintenance:
Before installing the Honeywell DC-TUIO31, verify that the DIN rail is properly grounded and rated for the module’s weight when fully wired. Ensure a minimum clearance of 30mm above and below the module to facilitate airflow—critical in enclosed cabinets where ambient temperatures can exceed 50°C. Check that input wiring uses twisted-pair cables for analog signals, with shields terminated at the control panel end only to prevent noise pickup from nearby motor cables.
For maintenance, schedule monthly visual inspections to check for loose terminal screws—vibration in manufacturing environments can gradually loosen connections, causing intermittent signal loss. Use the module’s built-in LED status indicators to quickly identify fault conditions: a flashing red output LED typically indicates an overcurrent situation requiring immediate attention. Every six months, perform a full signal test using a calibrated signal generator to verify analog input linearity, especially in applications where process tolerances are tight (±1% or less). When replacing the module, transfer configuration settings via the DC-Config software to minimize
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