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- Yokogawa
- SDV144-S53 S2
- Digital Input Module
- Japan
- 25 mm × 100 mm × 130 mm
- 0.32kg
- Xiamen, China
- New & In Stock
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Safety Digital Input Module Overview
Model: SDV144-S53 S2
1. Brand and Series Information
The SDV144-S53 S2 belongs to an industrial safety digital input module family used in safety instrumented systems (SIS) and distributed control system (DCS) architectures.
It is part of a modular safety I/O platform designed for reliable acquisition and processing of discrete field signals from safety-related devices.
The series is widely applied in industrial environments where safety integrity, fast response, diagnostics, and system redundancy are essential for continuous operation.
2. Product Overview
The SDV144-S53 S2 is a safety-grade digital input module designed for monitoring ON/OFF status signals from field devices in industrial automation systems.
It is used to acquire signals from emergency shutdown devices, safety interlocks, limit switches, and alarm contacts.
The module ensures stable and accurate signal transmission to safety controllers while maintaining strong electrical isolation between field wiring and control logic systems.
The S2 version represents an upgraded revision with improved internal processing stability and enhanced diagnostic capability.
3. Technical Parameters
| Parameter | Specification |
|---|---|
| Signal Type | Safety digital input |
| Function | Safety signal acquisition and monitoring |
| Input Channels | Multi-channel digital input configuration |
| Input Voltage | 24 V DC industrial standard |
| Response Time | ≤ 10 ms |
| Diagnostic Function | Advanced channel-level diagnostics |
| System Version | S2 upgraded revision |
| Isolation Voltage | Up to 1500 V AC |
| Power Supply | 24 V DC |
| Power Consumption | Low-power safety design |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity Range | 5% – 95% non-condensing |
| Mounting Type | Rack / backplane installation |
| EMC Protection | High immunity industrial safety design |
| Dimensions (W × H × D) | 25 mm × 100 mm × 130 mm |
| Weight | 0.32 kg |
4. Product Introduction
The SDV144-S53 S2 is designed for safety-critical signal monitoring in industrial automation systems.
It continuously collects digital status signals from field devices and transmits them to safety controllers for processing and decision-making.
The module ensures reliable detection of abnormal or hazardous conditions with fast response performance.
The S2 revision improves diagnostic precision and internal signal processing stability compared to standard versions.
5. Applications
The SDV144-S53 S2 is widely used in industrial safety systems, including:
- Emergency shutdown systems (ESD)
- Fire and gas detection systems
- Safety interlock systems
- Petrochemical processing plants
- Power generation safety systems
- Water treatment and distribution systems
- Industrial machinery protection systems
It is especially suitable for environments requiring high safety integrity and stable real-time monitoring.
6. Product Advantages
Enhanced Safety Reliability
Designed for safety instrumented systems with improved fault detection capability.
Fast Response Performance
Ensures rapid detection of safety-related signal changes.
Advanced Diagnostics (S2 Version)
Improved channel-level monitoring and fault identification.
Strong Electrical Isolation
Protects system electronics from electrical noise and voltage surges.
Compact Modular Structure
Supports high-density installation in control cabinets.
High Operational Stability
Suitable for long-term continuous industrial operation.
7. Similar Models (Same Series / Related Safety Modules)
| Model | Description | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| SDV144-S51 S2 | Standard safety input module | Digital input | 25 × 100 × 130 | 0.30 |
| SDV144-S52 S2 | Enhanced diagnostic version | Safety DI module | 25 × 100 × 130 | 0.31 |
| SDV144-S53/B4D00 S2 | Alternate configuration model | Safety input module | 25 × 100 × 130 | 0.32 |
| SDV144-S54 S2 | Expanded channel version | Multi-channel safety input | 28 × 100 × 130 | 0.33 |
| SDV144-S55 S2 | High isolation reinforced model | Safety-grade input module | 25 × 105 × 135 | 0.34 |
8. Popular Models (Same Brand – Industrial Automation Modules)
| Model | Description | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| ADV151-P00 S2 | Digital input module | Signal acquisition | 12 × 100 × 110 | 0.17 |
| ADV551-P50 S1 | Analog output module | Signal transmission output | 15 × 100 × 115 | 0.20 |
| AAI141-S00 S1 | Analog input module | Process signal measurement | 12.5 × 100 × 115 | 0.18 |
| AAI543-S50 S1 | Multi-channel analog input module | High-density signal acquisition | 15 × 105 × 120 | 0.23 |
| ADV859-P10 S1 | Communication module | System data communication | 20 × 110 × 130 | 0.25 |
9. Summary
The SDV144-S53 S2 is a safety digital input module designed for reliable and stable monitoring of field device signals in industrial safety systems.
It is widely used in environments requiring fast response, high diagnostics capability, and strong system integrity.
Its S2 optimized architecture, modular structure, and reinforced isolation design make it suitable for modern safety instrumented system applications.