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- Yokogawa
- SDV144
- Digital Input Module
- Japan
- 25 mm × 100 mm × 130 mm
- 0.3kg
- Xiamen, China
- New & In Stock
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Industrial Safety Input Module Overview
Model: SDV144
1. Brand and Series Information
The SDV144 belongs to an industrial safety and signal input module family used in distributed control systems and safety instrumented systems (SIS).
It is part of a modular safety I/O platform designed for high-reliability signal acquisition from field devices such as switches, sensors, and process safety equipment.
The series is commonly applied in critical industrial environments where safe operation, fault detection, and system redundancy are essential requirements.
2. Product Overview
The SDV144 is an industrial digital input safety module designed to collect and process discrete signals from field devices.
It is typically used for monitoring safety-related signals such as emergency shutdown systems, limit switches, and alarm contacts.
The module ensures reliable signal detection while maintaining electrical isolation between field devices and control systems.
Its architecture is designed for high availability and fault-tolerant operation in safety-critical applications.
3. Technical Parameters
| Parameter | Specification |
|---|---|
| Signal Type | Digital input (discrete signal) |
| Function | Safety signal acquisition and processing |
| Input Channels | Multi-channel digital inputs |
| Input Voltage | Standard industrial DC input levels |
| Response Time | ≤ 10 ms (typical safety response) |
| Isolation Voltage | Up to 1500 V AC |
| Diagnostic Function | Channel-level diagnostics support |
| 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 design |
| Dimensions (W × H × D) | 25 mm × 100 mm × 130 mm |
| Weight | 0.30 kg |
4. Product Introduction
The SDV144 is designed to handle safety-related digital input signals in industrial automation systems.
It monitors the status of field devices and transmits signal states to the safety controller for further processing.
The module is commonly used in systems where fast response and reliable fault detection are required.
Its modular design allows easy integration into safety instrumented systems and distributed control architectures.
5. Applications
The SDV144 is widely used in industrial safety and automation systems, including:
- Emergency shutdown systems (ESD)
- Fire and gas detection systems
- Industrial safety interlock systems
- Petrochemical processing plants
- Power generation safety systems
- Water treatment safety monitoring
- Manufacturing process safety control
It is particularly suitable for applications requiring high reliability and rapid response in safety-critical environments.
6. Product Advantages
High Safety Reliability
Designed for use in safety instrumented systems with strong fault detection capability.
Fast Response Time
Ensures rapid signal detection for emergency conditions.
Strong Electrical Isolation
Protects control systems from external electrical disturbances.
Built-in Diagnostics
Supports channel-level monitoring and fault detection.
Compact Modular Structure
Enables dense installation in control cabinets.
High Environmental Resistance
Stable operation under temperature and humidity variations.
7. Similar Models (Same Series / Related Safety Modules)
| Model | Description | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| SDV141 | Standard safety input module | Digital input | 25 × 100 × 130 | 0.28 |
| SDV142 | Enhanced diagnostic version | Safety DI module | 25 × 100 × 130 | 0.29 |
| SDV143 | Expanded channel model | Multi-channel safety input | 28 × 100 × 130 | 0.30 |
| SDV145 | High isolation safety module | Reinforced safety input | 25 × 105 × 135 | 0.32 |
| SDV144A | Optimized response variant | Fast safety input module | 25 × 100 × 130 | 0.31 |
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 is a safety-oriented digital input module designed for reliable signal acquisition in industrial safety systems.
It is widely used in applications where fast response, fault detection, and system integrity are critical.
Its robust architecture, strong isolation design, and diagnostic capabilities make it suitable for modern safety instrumented system applications.