The Honeywell TC-IDD321 is a Discrete Input Module designed for use with the Experion LS control system. It is engineered to accurately detect and process digital input signals from various field devices such as switches, contactors, and other binary input sources. The module converts these discrete input signals into data usable by the control system for monitoring and automation tasks.

Built to meet the demanding requirements of industrial process control, the TC-IDD321 offers reliable performance, robust construction, and easy integration within Honeywell’s distributed control architecture. Its compact design facilitates efficient installation in control racks, while advanced diagnostics enhance operational reliability.

Key Features

• Discrete input module for Honeywell Experion LS control system.

• Supports multiple digital input channels.

• High-speed input processing for timely detection of signal changes.

• Compatible with a wide range of field devices and sensors.

• Built-in diagnostics for fault detection and troubleshooting.

• Hot-swappable for minimal downtime during maintenance.

• Rugged design suitable for harsh industrial environments.

• Compact footprint for efficient rack installation.

• Provides secure and noise-immune digital signal processing.

• Complies with industry standards and certifications.

Technical Specifications

Industry Applications

• Oil & Gas: Monitoring of valve positions, switches, and safety interlocks.

• Chemical Processing: Detection of equipment status and safety devices.

• Power Generation: Input monitoring from circuit breakers and control switches.

• Water & Wastewater: Status monitoring of pumps and motor starters.

• Pharmaceutical Manufacturing: Control and monitoring of batch process discrete signals.

• General Industrial Automation: Detection of machine states, limit switches, and alarms.

Product Advantages

• Reliable Digital Signal Detection: Ensures accurate monitoring of discrete field signals.

• High Channel Density: Supports up to 32 input points per module.

• Robust and Durable: Designed for reliable operation in harsh industrial conditions.

• Ease of Maintenance: Hot-swappable design minimizes system downtime.

• Comprehensive Diagnostics: Enhances troubleshooting and system integrity.

• Compact Design: Saves space within control cabinets.

• System Compatibility: Seamlessly integrates with Honeywell Experion LS systems.

• Noise Immunity: Optical isolation and filtering reduce signal interference.

• Certified Quality: Complies with major industrial safety and performance standards.

• Scalable System Integration: Enables flexible expansion of digital input capacity.

Frequently Asked Questions (FAQ)

1. How many discrete inputs does the TC-IDD321 support?

   It supports 32 discrete input channels.

2. What type of input signals are accepted?

   Dry contact inputs and sinking or sourcing logic signals.

3. What is the nominal input voltage?

   24 VDC nominal.

4. Is the module hot-swappable?

   Yes, it allows replacement without shutting down the system.

5. What is the typical response time for inputs?

   Less than or equal to 10 milliseconds.

6. How is the module isolated?

   Inputs are optically isolated from the system to prevent interference.

7. What environments can the module operate in?

   Operating temperature from 0°C to +60°C, with 5%-95% relative humidity.

8. Which control systems is the TC-IDD321 compatible with?

   Honeywell Experion LS distributed control system.

9. What diagnostics features does the module offer?

   Fault detection, input status monitoring, and communication diagnostics.

10. What are the physical dimensions of the module?

    Approximately 90mm × 120mm × 25 mm.