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Product Introduction
The Yokogawa SNB10D-215/CU2T Safety Node Unit is a high-performance, rack-mountable module designed for safety instrumented systems (SIS). It functions as an interface between field devices and safety control units, ensuring reliable communication and power distribution. The unit supports redundant power configuration and operates in harsh industrial environments, conforming to ISA Standard G3.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SNB10D-215/CU2T |
| Power Supply | Dual-redundant, 100–120 V AC |
| Communication | ESB (Ethernet Safety Bus) |
| Mounting | 19-inch rack, 4 M5 screws |
| Dimensions | 482.6 x 221.5 x 205 mm |
| Weight | 5.9 kg |
| Operating Temperature | -20°C to 70°C |
| Conformance | ISA Standard G3 |
| Option Code | CU2T: Connector Unit with Terminator for ESB Bus |
Applications
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Integration in safety instrumented systems (SIS)
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Connection to Yokogawa S2SC70S/D or SSC60S/D safety controllers
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Interface for field I/O modules in process control environments
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Industrial safety monitoring in chemical, petrochemical, and power plants
Advantages
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High reliability through dual-redundant power configuration
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Rack-mountable design for compact and organized installation
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Broad operational temperature range suitable for harsh environments
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Conforms to ISA G3, ensuring robust industrial compliance
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Supports a wide range of I/O modules for flexible system expansion
FAQ
1. What is the main function of the SNB10D-215/CU2T?
It acts as an interface between field devices and safety control units, facilitating communication and power distribution.
2. Can the unit operate in high-temperature environments?
Yes, it is designed to operate between -20°C and 70°C.
3. Does it support redundant power supply?
Yes, it has a dual-redundant power configuration for enhanced reliability.
4. What communication protocol does it use?
The unit supports ESB (Ethernet Safety Bus) for communication.
5. What types of field devices can it interface with?
It can interface with a variety of I/O modules connected to safety instrumented systems.
6. Is the unit rack-mountable?
Yes, it is designed for 19-inch rack mounting with 4 M5 screws.
7. What standards does it conform to?
It meets ISA Standard G3 for environmental conditions.
8. What is the weight of the unit?
The unit weighs 5.9 kg.
9. Can it be used with Yokogawa SSC60S/D controllers?
Yes, it is compatible with SSC60S/D and S2SC70S/D safety controllers.
10. What does the CU2T option code indicate?
CU2T indicates a Connector Unit with Terminator for the ESB Bus.
Related Models (Same Series)
| Model | Power Supply | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| SNB10D-215 | Dual-redundant AC | 482.6 x 221.5 x 205 | 5.9 |
| SNB10D-225 | Single AC | 482.6 x 221.5 x 205 | 5.7 |
| SNB10D-215/EX | Dual-redundant AC | 482.6 x 221.5 x 205 | 6.0 |
| SNB10D-215/CU1 | Dual-redundant AC | 482.6 x 221.5 x 205 | 5.8 |
| SNB10D-225/CU2T | Single AC | 482.6 x 221.5 x 205 | 5.7 |
| SNB10D-215/RT | Dual-redundant AC | 482.6 x 221.5 x 205 | 5.9 |
Popular Yokogawa Models
| Model | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| S2SC70S | Safety Controller | 482.6 x 221.5 x 250 | 6.5 |
| S2SC70D | Safety Controller (redundant) | 482.6 x 221.5 x 250 | 7.0 |
| SSC60S | Safety Controller | 482.6 x 221.5 x 230 | 6.2 |
| SSC60D | Safety Controller (redundant) | 482.6 x 221.5 x 230 | 6.8 |
| SEC402 | ESB Bus Coupler | 482.6 x 88.1 x 205 | 4.5 |
| SNB10D-110 | Safety Node Unit | 482.6 x 221.5 x 205 | 5.5 |
