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Product Introduction
The Honeywell FC-TDIO52 51307988-176 is a robust and safety-critical I/O module developed for use within Honeywell’s Safety Manager system, a TÜV-certified SIL 3 safety platform. This module is part of the Safety Manager SC (Smart Connection) hardware portfolio and is engineered for fail-safe control, diagnostics, and communication in high-risk environments, such as oil & gas, petrochemicals, power generation, and refining.
As a Redundant Digital and Analog Input/Output Module, the FC-TDIO52 ensures high system availability by providing redundant paths for both field signal acquisition and control. It supports dual-channel operation, self-diagnostics, and fail-safe states, allowing it to meet the most stringent IEC 61508 safety requirements.
Designed for Honeywell’s Experion PKS and Safety Manager environments, this module plays a central role in Safety Instrumented Systems (SIS) by helping prevent hazardous events and enabling safe emergency shutdown (ESD), fire and gas protection, and process interlocks.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | FC-TDIO52 |
| Part Number | 51307988-176 |
| Manufacturer | Honeywell |
| Series | Safety Manager SC Hardware |
| Module Type | Redundant I/O Module for Safety Applications |
| Safety Integrity Level | SIL 3 (Certified by TÜV in accordance with IEC 61508) |
| Supported I/O | Configurable for Digital/Analog Input/Output |
| Channels | Typically 16, configurable |
| Diagnostics | Built-in, with status LEDs and communication monitoring |
| Communication Interface | Safety Manager SC communication bus |
| Hot Swappable | Yes |
| Redundancy Support | Yes (channel and module redundancy) |
| Operating Voltage | 24 VDC (nominal) |
| Power Consumption | ≤ 3 W |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5% to 95% RH, non-condensing |
| Certifications | CE, UL, CSA, ATEX, TÜV SIL 3 |
| Dimensions (H × W × D) | 368 x 120 x 50 mm |
| Weight | 0.45 kg |
Product Applications
The Honeywell FC-TDIO52 module is purpose-built for mission-critical safety systems and is deployed in hazardous industries where functional safety and redundancy are essential. Common applications include:
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Emergency Shutdown Systems (ESD) – Ensures safe shutdown of plants or units during process anomalies.
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Fire & Gas Detection Systems – Interfaces with gas sensors and flame detectors for rapid response to hazards.
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Burner Management Systems (BMS) – Provides fail-safe control over burner ignition, fuel flow, and purging.
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Critical Process Interlocks – Maintains logic control for safe process sequencing and interlocking.
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High-Integrity Pressure Protection Systems (HIPPS) – Controls high-pressure valves for overpressure protection.
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Tank Farms & Terminals – Manages overfill protection and leak detection with continuous safety diagnostics.
Product Advantages
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TÜV-Certified SIL 3 Compliance: Meets global safety standards for critical control systems.
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Redundant I/O Support: Dual-channel operation ensures maximum uptime and failure tolerance.
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Hot-Swappable Design: Facilitates maintenance without process interruption.
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Comprehensive Diagnostics: Real-time fault monitoring and LED indicators simplify troubleshooting.
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Versatile I/O Handling: Configurable to support analog and digital input/output for broad application.
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Reliable System Integration: Seamlessly integrates with Safety Manager and Experion PKS architectures.
Frequently Asked Questions (FAQ)
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What is the primary use of the FC-TDIO52 module?
It functions as a redundant, safety-certified I/O module for use in Honeywell Safety Manager systems. -
Is the FC-TDIO52 module SIL-certified?
Yes, it is TÜV-certified for SIL 3 in accordance with IEC 61508. -
What types of signals can it handle?
Both analog and digital I/O signals, configurable depending on project requirements. -
Does it support redundancy?
Yes, the module supports both channel-level and module-level redundancy. -
Can it be hot-swapped?
Yes, it is designed to be replaced without shutting down the system. -
Which systems is it compatible with?
It is specifically designed for Honeywell Safety Manager SC and Experion PKS. -
Is it suitable for hazardous environments?
Yes, it holds ATEX and CSA certifications, making it suitable for use in hazardous zones. -
Does it provide built-in diagnostics?
Yes, it includes internal self-checks and LED indicators for fault identification. -
What is the power requirement?
The module typically runs on 24 VDC and consumes less than 3 watts. -
Where is it typically installed?
Inside control cabinets as part of a larger Safety Manager I/O node or panel.
Related Models from the Same Series or Function
| Model | Description | Signal Type | Application |
|---|---|---|---|
| FC-SDOY22 | Redundant Digital Output Module | Digital Output | Output to final control elements |
| FC-SAI-1620m | Analog Input Module | Analog Input | Field signal acquisition |
| FC-SDI-1624 | Digital Input Module | Digital Input | Sensor and switch inputs |
| FC-SAO-0820m | Analog Output Module | Analog Output | Drives actuators and converters |
| FC-RUS-24VDC | Redundant Power Supply Unit | Power | Supplies 24VDC redundant power |
| FC-TSDI12 | Safety Manager Digital Input Module | Digital Input | Safety-related discrete signal acquisition |
Popular Honeywell Models Across Product Lines
| Model | Function | Series | Primary Use |
|---|---|---|---|
| C300 Controller | Central Control Processing Unit | Experion PKS | Main DCS process controller |
| UDC3500 | Universal Digital Controller | UDC Series | Standalone process loop control |
| HC900 | Hybrid Controller with Safety Functionality | HC900 | Combines process and safety control |
| RM7840G1018 | Flame Safeguard Relay Module | Flame Safeguard Series | Burner management and safety shutdown |
| FSC100 | Fail-Safe Controller | FSC | Process safety control |
| XYC1000 | Paperless Graphic Recorder | XYC Series | Real-time data acquisition and logging |
