Honeywell USI-0002

Multi-protocol support: The Honeywell USI-0002 stands out for its ability to handle multiple communication protocols, including Modbus RTU, ASCII, and Honeywell’s proprietary protocols. This flexibility eliminates the need for multiple interface modules, reducing system complexity and cost. Whether connecting to older RS-232 sensors or modern RS-485 actuators, the Honeywell USI-0002 ensures smooth data transmission without protocol conflicts.

Wide environmental tolerance: Designed to operate in extreme conditions, the Honeywell USI-0002 functions reliably from -40°C to +70°C, making it suitable for harsh industrial environments such as outdoor installations, refrigerated facilities, and high-temperature manufacturing plants. Its robust construction resists vibration and electromagnetic interference, ensuring consistent performance in challenging settings.

Easy integration: The Honeywell USI-0002 features a compact DIN rail design that simplifies installation in control panels with limited space. Its plug-and-play configuration, combined with user-friendly configuration software, reduces setup time. Engineers can quickly configure communication parameters via a PC interface, eliminating the need for specialized programming skills and accelerating system deployment.

Redundant communication: With two RS-232 ports and one RS-485 port, the Honeywell USI-0002 offers redundant communication paths, enhancing system reliability. In critical applications where communication failure could lead to downtime, this redundancy ensures backup connectivity, minimizing the risk of data loss or process disruption.

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Description

Detailed parameter table

Parameter name Parameter value
Product model USI-0002
Manufacturer Honeywell
Product category Universal Serial Interface module
Communication ports 2 x RS-232, 1 x RS-485
Data transfer rate Up to 115.2 kbps
Operating voltage 24 VDC ±10%
Power consumption Max 3 W
Operating temperature -40°C to +70°C
Storage temperature -55°C to +85°C
Humidity tolerance 0-95% non-condensing
Mounting type DIN rail (35mm)
Dimensions 100mm x 60mm x 30mm
Certifications CE, UL 508, CSA
Supported protocols Modbus RTU, ASCII, Honeywell Proprietary
Honeywell USI-0002

Honeywell USI-0002

Product introduction

The Honeywell USI-0002 is a versatile Universal Serial Interface module designed to bridge communication gaps in industrial automation systems. As a key component in Honeywell’s connectivity solutions, it enables seamless data exchange between diverse devices and control systems, addressing the common challenge of integrating legacy equipment with modern automation platforms.

The Honeywell USI-0002 supports multiple serial protocols, making it compatible with a wide range of sensors, actuators, and controllers. Its ability to convert between RS-232, RS-485, and various protocol formats allows it to act as a central communication hub in complex industrial setups. By standardizing data flow, the Honeywell USI-0002 enhances system visibility, simplifies troubleshooting, and lays the groundwork for more advanced data analytics in industrial environments.

Core advantages and technical highlights

Multi-protocol support: The Honeywell USI-0002 stands out for its ability to handle multiple communication protocols, including Modbus RTU, ASCII, and Honeywell’s proprietary protocols. This flexibility eliminates the need for multiple interface modules, reducing system complexity and cost. Whether connecting to older RS-232 sensors or modern RS-485 actuators, the Honeywell USI-0002 ensures smooth data transmission without protocol conflicts.

Wide environmental tolerance: Designed to operate in extreme conditions, the Honeywell USI-0002 functions reliably from -40°C to +70°C, making it suitable for harsh industrial environments such as outdoor installations, refrigerated facilities, and high-temperature manufacturing plants. Its robust construction resists vibration and electromagnetic interference, ensuring consistent performance in challenging settings.

Easy integration: The Honeywell USI-0002 features a compact DIN rail design that simplifies installation in control panels with limited space. Its plug-and-play configuration, combined with user-friendly configuration software, reduces setup time. Engineers can quickly configure communication parameters via a PC interface, eliminating the need for specialized programming skills and accelerating system deployment.

Redundant communication: With two RS-232 ports and one RS-485 port, the Honeywell USI-0002 offers redundant communication paths, enhancing system reliability. In critical applications where communication failure could lead to downtime, this redundancy ensures backup connectivity, minimizing the risk of data loss or process disruption.

Typical application scenarios

In food and beverage processing plants, the Honeywell USI-0002 plays a vital role in integrating legacy equipment with modern SCADA systems. Many processing lines use older temperature controllers and flow meters with RS-232 interfaces, while newer PLCs and HMI panels communicate via RS-485. The Honeywell USI-0002 bridges these devices, enabling real-time monitoring of pasteurization temperatures and filling rates, ensuring compliance with food safety standards and reducing manual data logging errors.

Within water treatment facilities, the Honeywell USI-0002 connects diverse sensors (pH, turbidity, pressure) and control valves spread across large sites. By consolidating data from these devices into a central control system, operators gain comprehensive visibility of treatment processes. The module’s wide temperature tolerance allows it to function reliably in outdoor pump stations, ensuring continuous monitoring of water quality parameters and enabling timely adjustments to chemical dosing systems.

In pharmaceutical manufacturing, where equipment interoperability and data integrity are critical, the Honeywell USI-0002 integrates various production line components. It connects RS-232-based weighing scales, RS-485-enabled mixing tanks, and the central MES system, ensuring accurate batch tracking and process documentation. The module’s certification compliance helps meet regulatory requirements for data traceability in pharmaceutical production.

Honeywell USI-0002

Honeywell USI-0002

Related model recommendations

Honeywell USI-0001: A single-port variant of the Honeywell USI-0002, designed for simpler systems requiring only RS-232 to RS-485 conversion. Ideal for small-scale installations with fewer devices.

Honeywell 51304653-100: A power supply module that pairs with the Honeywell USI-0002, providing stable 24VDC power in industrial environments with voltage fluctuations.

Honeywell S9000 Series Controllers: These advanced controllers work seamlessly with the Honeywell USI-0002 to manage complex automation systems, leveraging the module’s communication capabilities for expanded device connectivity.

Honeywell W7220: A wireless gateway that, when used with the Honeywell USI-0002, extends communication to wireless sensors, creating hybrid wired-wireless networks for large facilities.

Honeywell TC-CCR011: A communication redundancy module that enhances the Honeywell USI-0002‘s reliability by providing automatic failover between communication paths in mission-critical systems.

Honeywell 900H08-0101: A protocol converter that complements the Honeywell USI-0002 by handling more complex protocol translations, such as converting BACnet to Modbus for building automation integration.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing the Honeywell USI-0002, verify that the mounting location on the 35mm DIN rail is clean and free from debris. Ensure the ambient temperature is within -40°C to +70°C and that the area is protected from direct water exposure. Gather required tools: Phillips screwdriver, wire strippers, and a multimeter. Check that the 24VDC power supply is properly grounded and within the ±10% voltage tolerance. Review the wiring diagram to identify correct connections for RS-232/RS-485 devices, noting that RS-485 requires proper termination resistors (120Ω) at the module and far-end device.

Maintenance suggestions: For daily maintenance, inspect the Honeywell USI-0002 for loose connections or damaged cables, particularly after vibration events. Check the status LED—steady green indicates normal operation, while blinking red signals communication errors. Use the configuration software monthly to log communication statistics, identifying devices with frequent disconnections. If troubleshooting, first verify power supply stability (24VDC ±10%) using a multimeter. For protocol issues, export and review diagnostic logs via the software. When replacing the module, backup configuration settings first to minimize downtime, then restore them to the new Honeywell USI-0002 using the configuration tool.

Service and guarantee commitment

The Honeywell USI-0002 comes with a 24-month warranty from the purchase date, covering manufacturing defects and ensuring compliance with published performance specifications. If a fault is detected within this period, Honeywell will provide a replacement module within 48 hours of fault verification, minimizing operational downtime.

Honeywell offers dedicated technical support for the Honeywell USI-0002, including free access to configuration software updates and online troubleshooting guides. Our industrial communication experts are available via email and phone to assist with integration challenges, providing custom protocol mapping advice for complex systems. Additionally, Honeywell offers optional extended service contracts that include annual calibration checks and priority technical support, ensuring long-term reliability of the Honeywell USI-0002 in critical applications.