Honeywell 8U-TCNTA1 I/O Termination Assembly (IOTA)

The Honeywell 8U-TCNTA1 I/O Termination Assembly (IOTA) is designed for the Series 8 C300 Controller, a core component of Honeywell’s robust Distributed Control System (DCS). The C300 Controller delivers high-performance control through its deterministic Control Execution Environment (CEE), ensuring precise and efficient process management.

C300 Controller Overview

Advanced Control Environment: Operates with Honeywell’s proven CEE software, providing superior scheduling and control execution.
Customizable Control Strategies: Supports a robust library of pre-built function blocks and algorithms, alongside Custom Algorithm Blocks (CABs) for user-defined control strategies tailored to specific requirements.
Compact and Efficient Design: Shares its hardware design with Series 8 I/O, minimizing footprint, installation, and maintenance costs.

The C300 Controller mounts directly onto the 8U-TCNTA1 IOTA, which includes passive components like FTE address switches, simplifying setup and operation.

Key Specifications

Hardware

Processor: PowerPC 8270
Power Requirement: 24 VDC (supplied by Series 8 power system)
Module Current Rating: 320mA
Dimensions: 220 mm (9″) height x 120 mm (4.75″) width
Hot-Swappable: Supports removal and insertion under power

Control and I/O

Supported I/O Types: Series 8 I/O
I/O Links: 2 configurable links, supporting up to 80 I/O modules per controller (40 per link, redundant or non-redundant)

Environmental Conditions

Operating Temperature: 0 to 60 °C
Storage Temperature: -40 to 85 °C
Humidity: 5 to 95% non-condensing
Corrosion Resistance: Harsh environments supported with 8C designation (ANSI/ISA-S71.04-1985 G3 level)

Control Capacity

Execution Units: 5500
Tagged Objects: 4095
Memory Units: 16,000
Execution Period: Adjustable (50 ms to 2000 ms)

Communication

Network: Fault Tolerant Ethernet (FTE)
Third-Party Devices: Supports Modbus Master

Applications

The Honeywell 8U-TCNTA1 IOTA and C300 Controller are ideal for critical industrial automation systems, offering flexibility, reliability, and robust performance in demanding environments.