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Core Functionality and System Role
The Honeywell CC-TUIO41 universal input/output termination assembly (IOTA) serves as a physical termination and interconnection point for Honeywell Experion PKS Series C control systems. This IOTA provides the physical mounting and field wiring interface for the CC-PUIO31 universal I/O module . The assembly supports up to 32 configurable channels, which can handle analog input (4-20mA, 0-10V), analog output (4-20mA), digital input (24VDC), and digital output (24VDC, transistor) signals . Additionally, its redundant design enables dual-module configurations for high availability applications.
Technical Specifications
The following table details the core technical parameters for the Honeywell CC-TUIO41:
| Parameter | Specification |
|---|---|
| Model Number | CC-TUIO41 |
| Part Number | 51306873-176 |
| Product Type | Universal I/O Termination Assembly (IOTA) |
| System Compatibility | Experion PKS Series C, C300 Controller |
| Channels | 32 universal, software-configurable |
| I/O Module Companion | CC-PUIO31 |
| Signal Types Supported | Analog Input (4-20mA, 0-10V), Analog Output (4-20mA), Digital Input (24VDC), Digital Output (24VDC, 0.5A) |
| A/D Resolution | 16-bit |
| Dimensions | 30.5 cm (12 in) width |
| Weight | 0.85 kg |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Protection | Coated (conformal coating) |
| Certifications | CE, CSA, FM Class I Division 2 |
Design and Installation Features
The Honeywell CC-TUIO41 features a robust, modular design that simplifies field wiring termination. The assembly provides screw terminals for direct connection of field device cables, which eliminates the need for intermediate marshalling panels . Its conformal coating enhances durability against humidity, dust, and corrosive conditions in harsh industrial environments . Furthermore, the IOTA includes reverse polarity protection and transient suppression on all I/O lines, which safeguards sensitive control electronics.
System Compatibility and Redundancy
The Honeywell CC-TUIO41 integrates with Experion PKS C300 controllers and supports redundant I/O module configurations . By installing two CC-PUIO31 modules on the same IOTA, the system automatically enables hardware-level hot-swappable redundancy. This design ensures continuous operation during module failure or replacement. The assembly also supports HART communication pass-through for intelligent field device integration. The redundancy and robust construction make this IOTA an ideal choice for mission-critical applications requiring maximum uptime .