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- Honeywell
- FS-SDO-0424
- Safe Digital Output Module
- USA
- 95 mm × 55 mm × 30 mm
- 0.4kg
- Xiamen, China
- New & In Stock
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Honeywell FS‑SDO‑0424 Safe Digital Output Module
Product Introduction
The FS‑SDO‑0424 is a Safe Digital Output module designed for use in safety instrumented systems (SIS) and industrial control applications. It provides multiple independent output channels with enhanced diagnostics and fault‑tolerance. The module is built to control field output devices (actuators, valves, etc.) in a “safe” manner, meaning that under fault or power loss conditions the outputs default to a safe/off state. It is part of Honeywell’s FS / SDO line of safe digital outputs intended for critical industrial safety applications.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | FS‑SDO‑0424 |
| Number of Output Channels | 4 independent channels |
| Output Voltage | 24 V DC |
| Maximum Output Current per Channel | 2 A per channel |
| Load Type | Solid‑state outputs, source type, short‑circuit proof |
| Power Requirements | Internal 24 V DC, external 24 V DC, logic supply as required |
| Operating Temperature Range | –40 °C to +85 °C |
| Protection Rating | IP20 |
| Communication / Monitoring | Diagnostic features built in, possibly compatibility with watchdog inputs |
| Dimensions (L × W × H) | 95 mm × 55 mm × 30 mm |
| Weight | ~ 0.40 kg |
Applications
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Safety Instrumented Systems in chemical, oil & gas, and petrochemical plants
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Control of field devices such as safety shut‑off valves, emergency stop actuators
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Redundant safety architectures where outputs must fail safely
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Industrial automation systems requiring diagnostics of output channels
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Building automation in safety‑critical installations
Advantages
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Fail‑safe design ensures outputs go off or to a safe state in case of fault or power failure
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Four channels allow moderate load control without needing multiple modules
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2 A capacity per channel gives good margin for many field devices
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Wide temperature range (–40 to +85 °C) makes it robust for outdoor or harsh indoor use
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Diagnostic capability helps detect faults (short / open circuits) to improve safety maintenance
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Compact form saves space in safety racks
Brand & Series
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Brand: Honeywell
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Series: FS‑SDO (Safe Digital Output Modules)
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Family: FS / SDO / Digital Outputs in safety / functional safety systems
Related / Same‑Series or Similar Models
Here are five models in the same series or with similar function:
| Model | Channels | Output Voltage | Max Current per Channel | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| FS‑SDO‑0424 | 4 | 24 V DC | 2 A | 95 × 55 × 30 | 0.40 |
| FS‑SDO‑0824 | 8 | 24 V DC | 550 mA per channel | ≈110 × 85 × 40 | ~0.48 |
| FS‑SDOL‑0424 | 4 | 24 V DC | 1 A | ≈95 × 55 × 30 | ~0.40 |
| FS‑SDO‑1624 | 16 | 24 V DC | ~1 A per channel | ≈140 × 90 × 50 | ~0.65 |
| FS‑TSDO‑0424 | 4 | 24 V DC | ~4 A per channel (safe module variant) | ~60 × 70 × 54 | ~0.60 |
Popular Honeywell Models (Other Series)
Here are five other frequently used Honeywell modules:
| Model | Functionality / Role | Key Parameter Highlight | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| FS‑PDC‑MB24‑2 | Modular bus / safety controller | 24 V DC, high current capacity | ~130 × 80 × 38 | ~0.50 |
| FS‑SDO‑0824 | Safe digital output, more channels | 8 channels, solid‑state outputs | ~110 × 85 × 40 | ~0.48 |
| FS‑SDOL‑0424 | Digital output low‑current version | 1 A per channel | ~95 × 55 × 30 | ~0.40 |
| FS‑AI / FS‑SAI | Signal isolators / analog input modules | 4‑20 mA inputs, high precision | similar compact size | around 0.4‑0.6 kg |
| FS‑RO‑1024 | Relay output module | Relay contacts, AC/DC switching | ~120 × 90 × 45 | ~0.55 kg |
FAQ (10 Questions & Answers)
Q1: How many channels does the FS‑SDO‑0424 have?
A1: It has four independent safe digital output channels.
Q2: What is the maximum current capacity per channel?
A2: Each channel can handle up to 2 A at 24 V DC.
Q3: What happens to the outputs if there is a fault or power loss?
A3: The module is designed to default to a safe/off state under fault or loss of power.
Q4: What temperature extremes can it operate under?
A4: It is rated from –40°C up to +85°C, suitable for harsh conditions.
Q5: What are its physical size and weight?
A5: The module measures about 95 mm × 55 mm × 30 mm and weighs around 0.40 kg.
Q6: Does it require any communication protocol to work?
A6: It includes diagnostic features; some variants integrate with system communication (e.g. watchdog or logic system), depending on configuration.
Q7: Is this module suitable for outdoor or water‑exposed environments?
A7: Protection rating is IP20, which is modest—suitable for indoor or protected cabinets, not direct outdoor exposure.
Q8: What kinds of loads can be driven with FS‑SDO‑0424?
A8: It can drive resistive or small inductive loads that do not exceed its voltage/current limits.
Q9: What diagnostic or safety features are included?
A9: It includes fault detection, short‑circuit proof output design, and diagnostics to detect failed output channels.
Q10: What safety standards does this module comply with?
A10: It meets industry safety standards for functional safety in its design (e.g. fail safe outputs); specific SIL rating depends on module version.
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Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
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24-hour after-sales service guarantee team, professional and standardized management service system.