Yokogawa SNB10D-215/CU2N Safety Node Unit

Product Introduction

The Yokogawa SNB10D-215/CU2N is a high-reliability Safety Node Unit designed for the ProSafe-RS Safety Instrumented System. It functions as an interface between field devices and the safety control system, transmitting both analog and discrete signals over the ESB bus. The unit ensures high operational safety, SIL 3 compliance, and dual-redundant power supply options, making it suitable for critical industrial applications.

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Technical Specifications

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Applications

• Interface unit for Safety Instrumented Systems in chemical, petrochemical, and power industries

• Transmission of analog and contact signals from field devices to safety control units

• Critical process monitoring requiring SIL 3 safety compliance

• Redundant system configurations to ensure continuous operation

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Advantages

• Supports SIL 3 safety applications

• Dual-redundant power supply for high reliability

• Compact rack-mount design saves cabinet space

• Wide operating temperature range (-20 to 70°C)

• Compatible with a broad range of field devices

• Robust compliance with international safety and EMC standards

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Frequently Asked Questions (FAQ)

1. What is the primary function of the SNB10D-215/CU2N?
It serves as an interface between field devices and the ProSafe-RS control system, transmitting analog and discrete signals.

2. What Safety Integrity Level (SIL) does this unit support?
The unit is certified for SIL 3 applications.

3. Can it operate with both AC and DC power supplies?
Yes, it supports 100–120 V AC, 220–240 V AC, and 24 V DC.

4. What is the maximum operating temperature for this unit?
The operating range is -20 to 70°C.

5. How is the unit mounted?
It is designed for 19-inch rack mounting using four M5 screws.

6. What is the weight and size of the unit?
Dimensions: 482.6 × 221.5 × 205 mm, Weight: 5.9 kg.

7. Is the unit suitable for hazardous area installations?
It complies with ATEX/UKEX directives, but explosion protection requirements should be verified per site.

8. Does it support redundant power supplies?
Yes, dual-redundant power supply configurations are supported.

9. Which communication bus does it use for field devices?
It transmits signals via the ESB Bus through the CU2N connector unit.

10. Can it replace older models?
Yes, this model can replace the SNB10D-213/CU2N unit in existing systems.

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Related Models (Same Series / Safety Node Units)

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Popular Yokogawa Models (Other Safety/Control Units)

Frequently Asked Questions (FAQ)

1. What is the primary function of the SNB10D-215/CU2N?
It serves as an interface between field devices and the ProSafe-RS control system, transmitting analog and discrete signals.

2. What Safety Integrity Level (SIL) does this unit support?
The unit is certified for SIL 3 applications.

3. Can it operate with both AC and DC power supplies?
Yes, it supports 100–120 V AC, 220–240 V AC, and 24 V DC.

4. What is the maximum operating temperature for this unit?
The operating range is -20 to 70°C.

5. How is the unit mounted?
It is designed for 19-inch rack mounting using four M5 screws.

6. What is the weight and size of the unit?
Dimensions: 482.6 × 221.5 × 205 mm, Weight: 5.9 kg.

7. Is the unit suitable for hazardous area installations?
It complies with ATEX/UKEX directives, but explosion protection requirements should be verified per site.

8. Does it support redundant power supplies?
Yes, dual-redundant power supply configurations are supported.

9. Which communication bus does it use for field devices?
It transmits signals via the ESB Bus through the CU2N connector unit.

10. Can it replace older models?
Yes, this model can replace the SNB10D-213/CU2N unit in existing systems.

Related Models (Same Series / Safety Node Units)

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Popular Yokogawa Models (Other Safety/Control Units)

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