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Product Introduction
The Honeywell FC-SDO-0424 Safe Digital Output Module is a high-integrity digital output module engineered for use in Safety Instrumented Systems (SIS). It is a critical component within the Honeywell Safety Manager or FSC (Fail Safe Controller) platform, designed specifically for applications that demand rigorous compliance with IEC 61508 SIL3 standards.
This module is capable of delivering fail-safe 24VDC digital outputs, enabling it to safely actuate field devices such as solenoid valves, emergency shutdown systems, interlocks, and relays in hazardous or mission-critical environments. With four isolated output channels, built-in diagnostics, and full support for redundancy, the FC-SDO-0424 is trusted in applications ranging from oil and gas processing plants to power stations and chemical facilities.
Its rugged design, combined with Honeywell’s proven safety architecture, ensures continuous reliability and fault-tolerant operation under extreme process conditions.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | FC-SDO-0424 |
| Product Type | Safe Digital Output Module |
| Channels | 4 independent digital outputs |
| Output Voltage | 24V DC (nominal), fail-safe |
| Output Type | High-side, sourcing type |
| Load Current per Channel | 0.5 A max (continuous), short-circuit protected |
| Response Time | <10 ms (typical switching delay) |
| Output Isolation | Channel-to-channel and channel-to-ground isolation |
| Diagnostic Functions | Open circuit detection, short-circuit detection, feedback monitoring |
| Power Supply | Supplied via system backplane |
| System Compatibility | Honeywell Safety Manager, FSC platforms |
| Fail-Safe Behavior | Configurable to de-energize on fault, supports trip-to-safe configurations |
| Status Indicators | Front-panel LEDs for channel and module status |
| Standards Compliance | IEC 61508 SIL3, TUV certified, CE marked |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% non-condensing |
| Shock/Vibration Resistance | IEC 60068 compliant |
| Cooling | Passive convection |
| Mounting | DIN rail or cabinet-mounted via FSC backplane |
| Dimensions | 100 × 160 × 20.32 mm |
| Weight | 0.5 kg |
Applications
The Honeywell FC-SDO-0424 is designed for safety-critical and high-reliability industrial automation environments, specifically:
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Emergency Shutdown Systems (ESD)
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Fire and Gas Systems (F&G)
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Burner Management Systems (BMS)
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Pipeline Monitoring and Control
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Tank Overfill Protection
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Power Plant Turbine Trips
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Chemical Reactor Shutdowns
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Oil & Gas Wellhead Control
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Safety Interlocks in Pharmaceutical Manufacturing
This module ensures immediate and accurate actuation of digital safety devices during hazardous conditions or fault detection, forming an integral part of Safety Instrumented Functions (SIFs).
Product Advantages
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Certified Safety: SIL3 compliance ensures reliable performance in life-critical applications.
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High Output Reliability: Independent channel design minimizes risk of total failure and supports system redundancy.
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Advanced Diagnostics: Built-in feedback and fault detection improve system integrity and speed up troubleshooting.
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Robust Construction: Engineered for harsh environments with resistance to shock, vibration, and extreme temperatures.
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Seamless Integration: Fully compatible with Honeywell Safety Manager and FSC systems via standard backplane interfaces.
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Compact Footprint: Space-saving design helps reduce cabinet size while maintaining high output density.
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Fail-Safe Operation: Trip-to-safe configurations provide safe shutdown during abnormal conditions or power loss.
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Low Maintenance: Long operational life and durable components reduce need for frequent replacement or service.
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Visual Feedback: LED indicators provide immediate visual status of each output channel and system health.
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Global Approvals: Recognized worldwide, with CE and TUV certifications for international project compliance.
Frequently Asked Questions (FAQ)
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What is the primary function of the FC-SDO-0424 module?
It provides 24VDC fail-safe digital outputs to control safety devices in critical process applications. -
Is this module certified for SIL3 applications?
Yes, it is certified according to IEC 61508 for SIL3 functional safety systems. -
Can I use this module in redundant systems?
Yes, it fully supports redundancy architectures typical in Honeywell Safety Manager or FSC platforms. -
How many output channels are available?
The FC-SDO-0424 offers 4 independent digital output channels. -
What protection features are built into the module?
It includes short-circuit protection, open-circuit detection, and output feedback monitoring. -
What is the max current per channel?
Each channel can source up to 0.5 A continuously. -
Can this module be hot-swapped during operation?
No, for safety reasons the module should be replaced during system shutdown or in maintenance mode. -
Does it include any visual indicators?
Yes, the front panel provides LED status for each output and overall module health. -
Which systems is this module compatible with?
It is specifically designed for use in Honeywell Safety Manager and FSC systems. -
How is the module mounted and powered?
It mounts on a DIN rail or cabinet and is powered via the system backplane.
Recommended Related or Similar Models (Same Series/Functionality)
| Model Number | Description | Channels | Application Type |
|---|---|---|---|
| FC-SAI-1620 | Safe Analog Input Module | 16 | Analog input for safety loops |
| FC-SDI-1624 | Safe Digital Input Module | 16 | Digital input for ESD/F&G |
| FC-SAI-0420 | SIL-rated Analog Input Module, 4 channels | 4 | Low-channel analog safety input |
| FC-PSU-UNIV | Universal Power Supply Module for FSC | – | Power module |
| FC-RLY-0416 | Safety Relay Output Module, 4 Form C contacts | 4 relays | High current safety actuation |
| FC-CPU-CPU10 | Central Processing Unit for FSC/Safety Manager | – | System controller |
Recommended Popular Honeywell Models (Same Brand, High Demand)
| Model Number | Description | Application | Platform |
|---|---|---|---|
| CC-PDIL01 | Digital Input Module, 24VDC | Standard process control | C300 |
| CC-TAOX01 | Analog Output Module, 4-20mA | Control & automation | Experion PKS |
| MC-PAIH03 | Analog Input Module, HART | Field signal acquisition | TDC3000 |
| CC-TDIL01 | Digital Input Module, Isolated | Digital signal input | Experion PKS |
| CC-PAOH01 | Analog Output Module, Redundant Support | Control outputs | C200/C300 |
| MU-TDID12 | Digital Input Module, 16 channels | High-density applications | TDC 3000 |
