Introduction
The Yokogawa NFDV161-P00 Digital Input Module is a high-reliability discrete signal acquisition module designed for ProSafe-RS Safety Instrumented Systems (SIS) and advanced industrial automation platforms. It is engineered to monitor field device status signals with precision, ensuring safe and stable system operation in critical process environments.
This module supports high-density digital input processing, making it ideal for applications requiring efficient signal monitoring across multiple channels. Its robust design, combined with Yokogawa’s safety architecture, ensures dependable performance in demanding industrial conditions.
Technical Specifications
| Parameter | Specification |
|---|
| Model | NFDV161-P00 |
| Manufacturer | Yokogawa |
| Type | Digital Input Module |
| Input Channels | 16 channels |
| Input Signal Type | 24 V DC ON/OFF signals |
| Input Voltage Range | 18–26.4 V DC |
| Input Current | Approx. 4–6 mA per channel |
| Response Time | ≤ 10 ms |
| Isolation | Channel-to-system isolation |
| Safety Level | SIL2 / SIL3 compatible (system dependent) |
| Input Type | Dry contact, proximity sensor, switch signals |
| Diagnostics | Built-in self-diagnostics and status monitoring |
| Power Consumption | Approx. 250–300 mA (5 V DC) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5–95% RH non-condensing |
| Dimensions | Approx. 130 × 107 × 32 mm |
| Weight | ~0.25–0.3 kg |
| Mounting Type | Rack-mounted (ProSafe-RS base unit) |
Applications
The NFDV161-P00 is designed for industrial environments where reliable digital signal monitoring is critical for safe operations.
Typical applications include:
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Emergency Shutdown Systems (ESD)
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Fire & Gas Detection Systems (F&G)
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Burner Management Systems (BMS)
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Oil & gas processing facilities
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Petrochemical and refinery plants
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Power generation safety control systems
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Industrial interlock monitoring systems
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Critical infrastructure safety systems
Its precise signal acquisition ensures accurate status detection of field devices.
Advantages
The Yokogawa NFDV161-P00 offers strong safety and operational performance:
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16-channel compact design optimizes cabinet space
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Fast response time (≤10 ms) ensures timely signal detection
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Reliable 24 V DC signal compatibility for industrial devices
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Integrated diagnostics improves fault detection and system visibility
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Robust isolation design enhances system protection
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High reliability for safety-critical applications
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Seamless integration with Yokogawa ProSafe-RS systems
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Stable long-term operation in harsh industrial environments
Technical FAQs
1. What is the main function of the NFDV161-P00?
It monitors and processes digital ON/OFF signals from field devices.
2. How many channels does it support?
It supports 16 digital input channels.
3. What signal type does it use?
24 V DC discrete signals.
4. Is it suitable for safety systems?
Yes, it is designed for safety-related applications within SIS platforms.
5. What is the response time?
Less than or equal to 10 ms.
6. Does it support diagnostics?
Yes, it includes built-in self-diagnostics and status monitoring.
7. What is the operating temperature range?
-20°C to +70°C.
8. What is the weight of the module?
Approximately 0.25–0.3 kg.
9. What systems is it compatible with?
Yokogawa ProSafe-RS and related DCS/SIS systems.
10. What type of devices can be connected?
Switches, sensors, dry contacts, and proximity devices.
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