Honeywell CC-TUI041 Universal Input Module

The Honeywell CC-TUI041 is a versatile universal input module within the Series C I/O lineup, designed to interface with a wide variety of analog sensors without the need for multiple dedicated modules. It offers 8 isolated channels that can be individually configured to accept signals from thermocouples, resistance temperature detectors (RTDs), millivolt sources, and 4-20 mA transmitters. This flexibility significantly reduces spare parts inventory and simplifies engineering for distributed control systems (DCS) such as Experion PKS.

Key Features

• Multi-Signal Compatibility: Each channel supports thermocouples (types B, E, J, K, N, R, S, T), RTDs (Pt100, Ni100, Cu10), millivolt (±100 mV), and 4-20 mA with external resistor.

• High Accuracy: 18-bit resolution with built-in cold-junction compensation for thermocouples and lead-wire compensation for RTDs.

• Channel-to-Channel Isolation: 500 VDC isolation prevents ground loops and enhances signal integrity in noisy environments.

• Automatic Configuration: The module is auto-detected by Experion PKS; channel settings are easily assigned via software.

• Diagnostics and Alarms: Continuous monitoring for open circuits, out-of-range values, and module health with visual LED indicators.

Technical Specifications

• Number of Channels: 8 differential inputs

• Input Types: Thermocouple, RTD, mV, mA (with external shunt)

• Resolution: 18 bits

• Sampling Rate: 100 ms per channel (typical)

• Accuracy: ±0.1% of reading for thermocouples; ±0.05% for RTDs

• Operating Temperature: -40°C to +70°C

• Isolation: 500 VDC channel-to-channel and channel-to-backplane

• Certifications: CE, CSA, FM Class I Division 2, ATEX

Applications

The CC-TUI041 is ideal for applications requiring mixed sensor types, such as furnace temperature monitoring (thermocouples), motor winding temperature (RTDs), and analog transmitter inputs. It is commonly used in refining, petrochemical, power, and food processing industries. By consolidating multiple input types into one module, it simplifies system design and reduces the need for signal conditioners.

Configuration and Integration

Using Honeywell’s Control Builder software, engineers can quickly assign each channel’s input type, scaling, and alarm thresholds. The module supports hot-swap replacement and redundant I/O link configurations for critical processes. Its integration with Experion PKS enables seamless data sharing with historians, asset management systems, and advanced control applications.

Reliability and Environmental Robustness

Designed for harsh industrial settings, the CC-TUI041 operates reliably across a wide temperature range and withstands high vibration and humidity. It complies with international EMC standards and is backed by Honeywell’s rigorous quality assurance. The module’s universal input capability not only reduces inventory but also future-proofs installations against sensor technology changes.

The Honeywell CC-TUI041 universal input module delivers unparalleled flexibility, accuracy, and ease of use, making it a cornerstone of modern DCS architectures.