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Description

The Honeywell CC-TDOR11 is a redundant Digital Output Relay IOTA (Input/Output Termination Assembly) designed for high-availability control applications within the Experion distributed control system (DCS) architecture. This module serves as a critical interface between the control system electronics and field-side discrete actuators, providing reliable relay-based switching for 24 VDC digital output signals. By facilitating galvanic isolation and redundant signal paths, the CC-TDOR11 protects sensitive control hardware from field-side electrical disturbances and minimizes the risk of single-point failures in industrial automation loops.

Features

  • Redundant architecture supporting high-availability output signal distribution.
  • Relay-based discrete output switching for enhanced isolation.
  • Designed for 24 VDC control voltage environments.
  • 12-inch IOTA form factor for high-density cabinet integration.
  • Galvanic isolation between control logic and field-side actuators.
  • Optimized for low-maintenance, reliable operation in continuous process environments.

Applications

The CC-TDOR11 is engineered for demanding industrial environments including oil and gas refining, chemical processing, and power generation. Typical applications include:

  • Control of field solenoids and actuators.
  • Interfacing with motor starter circuits.
  • Activation of alarm systems and signaling devices.
  • High-reliability discrete output signal routing in redundant control architectures.

Technical Specifications

Model CC-TDOR11
Brand Honeywell
Product Type Digital Output Relay IOTA
Control Voltage 24 VDC
Operating Temperature 0 to 60 deg C
Architecture Redundant relay-based output
Form Factor 12-inch IOTA

Installation Guidelines

  • Ensure the control system is powered down before installing or removing the IOTA module from the backplane.
  • Mount the module within a clean, climate-controlled industrial cabinet to maintain the specified operating temperature range.
  • Use appropriate ESD protection measures when handling the module to prevent damage to internal electronic components.
  • Ensure all field wiring is properly terminated and secured to the IOTA terminals to prevent intermittent contact or signal loss.
  • Route field signal cables away from high-voltage power lines and high-EMI sources to maintain signal integrity.
  • Verify that the redundant path configuration is correctly mapped in the controller software during system commissioning.

FAQ

What is the primary function of the CC-TDOR11?

The CC-TDOR11 acts as a termination assembly that provides relay-based isolation and redundant switching for digital output signals, allowing the control system to safely operate field devices like solenoids and motor starters.

Is this module compatible with all Honeywell systems?

The CC-TDOR11 is specifically designed for use within the Honeywell Experion and related DCS architectures that support the 12-inch IOTA form factor. Please verify your specific controller series and I/O module compatibility before installation.

Does this module require external power?

The module is designed for 24 VDC control voltage operation. It interfaces directly with the Honeywell I/O backplane to receive power and control signals for the relay switching operations.

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