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Product Introduction
The Honeywell FC-SDO-1624 is a high-performance Safe Digital Output Module designed for use in Safety Instrumented Systems (SIS). As a critical component of the Honeywell Safety Manager or FSC (Fail Safe Controller) platform, this module is responsible for delivering 24V DC fail-safe digital output signals to field actuators such as solenoids, relays, and shutdown valves in high-integrity safety applications.
With 16 independently controlled digital output channels, the FC-SDO-1624 supports large-scale safety configurations while maintaining strict compliance with IEC 61508 SIL3 safety standards. It offers advanced diagnostics, short-circuit protection, and feedback mechanisms to ensure operational integrity and reliability in mission-critical environments such as oil & gas plants, petrochemical refineries, power stations, and offshore platforms.
This module reflects Honeywell’s commitment to dependable safety technology, combining robust design, powerful diagnostics, and tight system integration to provide users with a scalable, secure, and standards-compliant output solution.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | FC-SDO-1624 |
| Type | Safe Digital Output Module |
| Output Channels | 16 channels |
| Output Voltage | Nominal 24V DC |
| Output Type | Sourcing, high-side |
| Channel Load Current | Up to 0.5 A per channel (continuous) |
| Total Output Capacity | Max 8 A shared across 16 channels |
| Protection Features | Short-circuit, open-load detection, feedback diagnostics |
| Diagnostics | Per-channel fault detection, field feedback monitoring |
| Response Time | <10 ms (typical) |
| Output Isolation | Channel-to-channel and channel-to-ground isolation |
| Power Supply | Via system backplane |
| Fail-Safe Operation | Configurable fail-safe (trip to safe state upon fault or loss of power) |
| Status Indicators | Front-panel LEDs for output and fault status |
| Safety Integrity Level | SIL3 (IEC 61508, TUV certified) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% RH, non-condensing |
| Vibration/Shock Resistance | IEC 60068 standard compliant |
| Cooling | Passive convection |
| Mounting | DIN rail or cabinet mounted via FSC backplane |
| Dimensions (H x W x D) | 100 × 160 × 20.32 mm |
| Weight | 0.5 kg |
Applications
The Honeywell FC-SDO-1624 is specifically engineered for high-reliability industrial safety systems. Its main use cases include:
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Emergency Shutdown Systems (ESD)
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Fire & Gas Detection Systems (F&G)
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Turbine Protection and Trip Systems
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Compressor Anti-Surge Systems
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Chemical Reactor Shutdown Sequences
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Tank Farm Overfill Protection
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Offshore Platform Safety Logic
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Refinery Process Unit Interlocks
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Boiler & Burner Management Systems
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Safety Control in Nuclear and Power Generation Plants
By offering 16 independent output points, the FC-SDO-1624 allows engineers to design dense, centralized output architectures in large-scale SIS frameworks.
Product Advantages
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High Output Density: With 16 output channels in a single module, the FC-SDO-1624 optimizes cabinet space and simplifies wiring.
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SIL3 Certified: Full compliance with IEC 61508 and third-party (TÜV) certification guarantees reliable use in safety-critical environments.
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Advanced Diagnostics: Built-in fault detection for open circuits, short-circuits, and feedback errors significantly enhances system visibility and maintenance.
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Fail-Safe Logic: Configurable trip-to-safe behavior ensures immediate deactivation of outputs in case of module or system failure.
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Channel Isolation: Prevents fault propagation, with isolated outputs to ensure continued operation of unaffected channels.
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LED Status Indication: Front-facing LEDs clearly indicate each output’s operational or fault status at a glance.
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System Integration: Seamlessly integrates with Honeywell Safety Manager and FSC platforms, enabling centralized safety management.
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Durable Construction: With industrial-grade build quality, the module can withstand harsh conditions including temperature extremes and vibrations.
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Long Service Life: Designed for long-term operation with minimal maintenance, reducing total cost of ownership.
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Global Compatibility: Certified for global applications, meeting CE and international standards.
Frequently Asked Questions (FAQ)
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What is the purpose of the FC-SDO-1624?
It is used to send safe 24V DC output signals to activate field devices like shutdown valves or safety relays in critical systems. -
How many digital outputs does the module support?
It provides 16 individual digital output channels, each independently controlled. -
Is this module certified for SIL3 applications?
Yes. It is SIL3 certified according to IEC 61508 and TÜV standards. -
What is the maximum current per channel?
Each output channel can source up to 0.5 A continuously. -
Can the outputs be configured as fail-safe?
Yes. Each output can be set to trip to a predefined safe state upon fault detection or system power loss. -
Is this module hot-swappable?
No. For safety, it should only be replaced when the system is de-energized or in maintenance mode. -
Which systems is it compatible with?
It is compatible with Honeywell Safety Manager and FSC safety systems. -
Does the module support diagnostics?
Yes, including feedback monitoring, open-load detection, and short-circuit protection on each channel. -
How is the module installed and powered?
It mounts onto the system’s backplane and draws power through the FSC baseplate interface. -
What are the operating conditions?
The module operates from -20°C to +70°C and withstands 5–95% relative humidity (non-condensing).
Recommended Related or Similar Models (Same Series or Functional Type)
| Model Number | Description | Channels | Function |
|---|---|---|---|
| FC-SDO-0424 | Safe Digital Output Module, 4 Channels | 4 | Low-density safety output |
| FC-SAI-1620 | Safe Analog Input Module | 16 | High-density analog input |
| FC-SDI-1624 | Safe Digital Input Module | 16 | High-density digital input |
| FC-RLY-0416 | Relay Output Module, Form C contacts | 4 relays | Output for high-current loads |
| FC-PSU-UNIV | Universal Redundant Power Supply Module | – | Power redundancy support |
| FC-DO-1624 | Standard (Non-Safe) Digital Output Module | 16 | Non-SIL output applications |
Recommended Popular Honeywell Models (Same Brand, High Demand)
| Model Number | Description | Application | Platform |
|---|---|---|---|
| CC-PDIL01 | 24V DC Digital Input Module | Standard I/O input | C300 |
| CC-TAOX01 | Analog Output Module, 4–20 mA | Control output | Experion PKS |
| MC-PAIH03 | HART Analog Input Module | Field signal acquisition | TDC 3000 |
| CC-TDIL01 | Isolated Digital Input Module | Digital input acquisition | Experion C200/C300 |
| CC-PAOH01 | Analog Output Module with Redundancy Support | Analog signal control | C200/C300 |
| MU-TDOD12 | 24V DC Digital Output Module | Output for process control | TDC 3000 |
