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Product Introduction
The Honeywell FS-TDOL-07120 is a Line-Monitored Relay Contact Digital Output Module that plays a critical role in safety-critical applications and process automation environments. Designed as part of Honeywell’s Fail Safe Controller (FSC) system architecture, this module provides high-integrity digital output functionality, ensuring safe control over field devices such as solenoids, relays, contactors, and motor starters.
This module is engineered to monitor and detect open and short circuits in field wiring, providing real-time diagnostics and feedback. It supports line monitoring resistors, enabling the detection of field wiring faults, and ensuring that the safety system is aware of the state of the wiring and output device at all times.
The FS-TDOL-07120 is ideal for demanding industrial environments such as oil & gas, chemical plants, power generation, and other industries requiring a SIL-rated safety system with fail-safe behavior.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | FS-TDOL-07120 |
| Manufacturer | Honeywell |
| Module Type | Digital Output Module (Relay Contact, Line-Monitored) |
| System | FSC (Fail Safe Controller) |
| Output Channels | 8 Channels |
| Output Type | Relay contact output with line monitoring |
| Relay Contact Type | Normally Open (NO) |
| Line Monitoring | Yes (Supports open and short circuit detection) |
| Nominal Voltage Range | 24V DC nominal |
| Maximum Switching Current | 2 A per channel (resistive load) |
| Isolation | Galvanic isolation between field and system |
| Response Time | < 10 ms |
| Redundancy Support | Yes (module redundancy supported in system design) |
| Operating Temperature Range | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% RH non-condensing |
| EMC/EMI Compliance | IEC 61000-6-2, IEC 61000-6-4 |
| Shock/Vibration Resistance | IEC 60068-2 compliant |
| Hot Swap Capability | Yes |
| Mounting | DIN rail or panel mount |
| Module Dimensions (W x H x D) | 240 x 109 x 71 mm |
| Weight | 0.5 kg |
Product Applications
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Emergency Shutdown Systems (ESD): Controls final actuating elements in safety shutdown logic.
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Fire and Gas Systems (F&G): Drives alarms and suppression systems.
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Process Control: Suitable for outputs that require high-integrity relay contact switching.
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Power Plants: Used in turbine protection and control systems.
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Oil & Gas: Deployed in onshore/offshore safety control systems.
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Chemical Processing: For hazardous environment output control.
Product Advantages
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Safety-Certified: Designed to meet SIL3 requirements for safety-critical applications.
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Line Monitoring: Provides proactive diagnostics of field wiring integrity, improving system reliability.
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Galvanic Isolation: Protects the controller and improves signal integrity by isolating field signals.
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Compact Design: Slim profile and DIN rail mounting ease installation in tight control cabinets.
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Hot-Swappable: Enables maintenance without system shutdown, reducing downtime.
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Proven Integration: Seamlessly integrates into Honeywell’s FSC platform with robust system compatibility.
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High Performance: Fast response time ensures timely control action in critical scenarios.
Frequently Asked Questions (FAQ)
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What is the primary function of the FS-TDOL-07120 module?
The FS-TDOL-07120 is used to provide line-monitored, relay-contact digital outputs for field devices in safety instrumented systems. -
Does the FS-TDOL-07120 support line monitoring?
Yes, it provides real-time open and short circuit detection through line monitoring resistors. -
What types of loads can be controlled using this module?
It is designed for controlling relay coils, solenoids, contactors, and other discrete load devices. -
Can the module be hot-swapped?
Yes, the FS-TDOL-07120 supports hot swapping without disturbing system operations. -
Is the module certified for use in safety applications?
Yes, it meets SIL3 certification standards suitable for high-integrity applications. -
What is the maximum current supported per output channel?
Each channel can handle up to 2A for resistive loads. -
Is the FS-TDOL-07120 compatible with legacy Honeywell systems?
It is designed for Honeywell FSC systems and integrates easily with legacy components. -
What happens if a field wiring fault is detected?
The system will generate a diagnostic alert, and the channel may be disabled to ensure safety. -
What are the dimensions of the module?
The module measures 240 x 109 x 71 mm. -
Can this module be used in outdoor environments?
It is designed for control cabinet installation. For outdoor use, it must be housed in a weatherproof enclosure.
Related Models (Same Series / Similar Functionality)
| Model Number | Description |
|---|---|
| FS-TDOL-07110 | Relay Output Module without Line Monitoring |
| FS-DO-0824 | 24V DC Digital Output Module |
| FS-AI-1101 | Analog Input Module for FSC |
| FS-DI-0810 | 24V Digital Input Module |
| FS-AO-1120 | Analog Output Module |
| FS-PSU-0110 | Power Supply Unit for FSC |
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