Product Overview
The Honeywell FC-TCNT11 51307928-176 is a redundant controller interface module designed for use in the Safety Manager SC S300 IOTA system, part of Honeywell’s high-integrity process safety and critical control platforms. It facilitates redundancy and communication between dual controllers, ensuring that failover and fault-tolerant operations can continue without system interruption or data loss.
Built to support TÜV-certified SIL3 safety applications, the FC-TCNT11 offers seamless controller switchover, real-time diagnostics, and synchronization between primary and secondary controllers. This module plays a pivotal role in functional safety and is vital for systems that cannot tolerate downtime.
Key Features
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Enables controller redundancy in SC S300 IOTA Safety Manager systems
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Ensures automatic switchover between primary and backup controller
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Real-time synchronization of memory, I/O, and logic state
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Fully compliant with IEC 61508 SIL3 safety standards
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Hot-swappable, enabling maintenance without system shutdown
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Advanced diagnostic and health monitoring features
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Designed for high-reliability environments including ESD, F&G, and BMS systems
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Seamless integration with Honeywell Experion PKS and Safety Builder
Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | FC-TCNT11 |
| Part Number | 51307928-176 |
| Module Type | Controller Redundancy Interface Module |
| System Platform | SC S300 IOTA (Safety Manager) |
| Function | Synchronizes and switches between redundant CPUs |
| Safety Certification | SIL3 (IEC 61508), TÜV-certified |
| Redundancy Support | Yes (Primary / Secondary CPU control switching) |
| Communication Interface | Internal backplane bus |
| Diagnostics | Module and communication health monitoring |
| Hot Swappable | Yes |
| Power Supply | Supplied via IOTA base |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Shock & Vibration | IEC 60068 compliant |
| Dimensions | 145.52 × 222.55 × 32 mm |
| Weight | 0.85 kg |
| Mounting | SC S300 IOTA backplane |
| Compliance | CE, CSA, UL, ATEX (when used in certified system) |
Industry Applications
The FC-TCNT11 redundancy module is an essential part of Honeywell’s functional safety architecture and is widely applied in:
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Oil & Gas – Emergency Shutdown Systems (ESD), pipeline integrity
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Chemical & Petrochemical – Process interlocks, toxic release mitigation
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Power Generation – Boiler protection systems, turbine safety control
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Refineries – Fire & Gas (F&G) systems, high-integrity protection systems
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Pharmaceuticals – GMP-critical process safety controls
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Water Treatment – Redundant supervisory logic in filtration and disinfection units
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Mining & Metals – Conveyor safety, automated shutdown interlocks
Product Advantages
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Zero Downtime Operation: Supports automatic controller switchover without disrupting the process.
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Enhanced System Safety: SIL3 certified and TÜV-approved for high-integrity safety applications.
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Rapid Fault Response: Built-in diagnostics enable quick detection and isolation of controller faults.
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Operational Flexibility: Hot-swappable design reduces maintenance burden in critical environments.
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Integrated Architecture: Works seamlessly with Honeywell’s Safety Manager and Experion PKS platforms.
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Reduced Lifecycle Costs: Reliability and predictive diagnostics help minimize unplanned outages.
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Security and Compliance: Meets international safety, EMC, and hazardous location certifications.
Frequently Asked Questions (FAQ)
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Q: What is the main purpose of the FC-TCNT11 module?
A: It enables and manages redundancy between two SC S300 controllers to ensure fail-safe operations. -
Q: Is this module certified for SIL3 applications?
A: Yes, it is TÜV-certified and fully compliant with IEC 61508 SIL3 safety standards. -
Q: Can the module be replaced during operation?
A: Yes, the FC-TCNT11 is hot-swappable and can be replaced without shutting down the system. -
Q: How does it detect controller failure?
A: It uses built-in diagnostics to monitor controller health and automatically triggers switchover if needed. -
Q: What systems is it compatible with?
A: It is specifically designed for Honeywell SC S300 IOTA Safety Manager platforms. -
Q: What kind of communication interface does it use?
A: It communicates over the internal IOTA backplane. -
Q: Does the module synchronize memory and logic between CPUs?
A: Yes, it ensures real-time synchronization for seamless switchover. -
Q: How is power supplied to the FC-TCNT11?
A: Power is supplied via the SC S300 IOTA base backplane. -
Q: Is there LED indication for diagnostics?
A: Yes, onboard status indicators show health, activity, and fault conditions. -
Q: What is the typical use case in a system?
A: It is used in any system where controller failure must not interrupt process operation, such as ESD or BMS systems.
Recommended Related or Similar Honeywell Models
| Model | Description |
|---|---|
| FC-TPSU-2430 | Power Supply Unit for Safety Manager S300 IOTA |
| FC-TSDI-1624 | 16-Channel Digital Input Module (Safety System) |
| FC-TSDO-0824 | 8-Channel Digital Output Module |
| FC-TSRZ-1604 | Relay Output Module for S300 IOTA |
| FC-TSAI-1620 | Analog Input Module for SC S300 Safety |
| FC-TSOX-0824 | 8-Channel Analog Output Module |
Popular Honeywell Modules (Same Brand)
| Model | Description |
|---|---|
| CC-TDIL01 | 24-Channel Digital Input Module |
| CC-PAIN01 | Analog Input Module |
| CC-TDOR01 | 24-Channel Digital Output Module |
| CC-TAID01 | Isolated Digital Input IOTA |
| CC-PAOH01 | HART Analog Output Module |
| CC-PCNT01 | Pulse Counter Input Module |
Company Information
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Add: Alishan Building, 2 Lvling Rd, Siming District, Xiamen, Fujian, China, 361006
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