Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Yokogawa SNB10D-223/CU2N Safety Node Unit
- Product Details
- FAQs
- Related
- Contact Us
- Packing & Delivery
- Product Ratings
Product Overview
The Yokogawa SNB10D-223/CU2N Safety Node Unit is a rack-mountable interface module designed for safety instrumented systems (SIS) such as ProSafe-RS. It provides reliable signal transmission between field devices and the safety control system, handling both analog and contact signals via the ESB bus while supplying power to connected I/O modules. The unit ensures high safety integrity and stable operation in industrial environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SNB10D-223/CU2N |
| Type | Safety Node Unit, rack-mountable |
| Power Supply | 100–120 V AC, 220–240 V AC, 24 V DC |
| Power Consumption | 100–120 V AC: 200 VA 220–240 V AC: 230 VA 24 V DC: 5.5 A |
| Weight | 5.9 kg |
| Dimensions | 482.6 × 221.5 × 205 mm |
| Operating Temperature | -20°C to 70°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Safety Integrity Level | SIL 2 / SIL 3 |
| Standards Compliance | IEC 61508 |
| Connector Unit | CU2N (non-terminating) |
| Mounting | 19-inch rack, 4 × M5 screws with insulation bushes |
Applications
-
Safety instrumented systems in chemical, petrochemical, and power industries
-
High-reliability process monitoring and control
-
Integration with ProSafe-RS I/O modules for emergency shutdown and alarm systems
-
Centralized signal acquisition from distributed field devices
Advantages
-
Rack-mountable design allows easy integration into standard control cabinets
-
Supports both analog and discrete signals for flexible application
-
SIL 2/3 compliant for high safety-critical applications
-
Reliable power supply to I/O modules, ensuring uninterrupted operation
-
Wide operating temperature and humidity range for harsh industrial environments
-
ESB bus interface ensures fast and accurate signal transmission
Frequently Asked Questions (FAQ)
1. What is the maximum number of SNB10D-223 units supported per ESB bus?
-
Up to 13 units with SEC402 bus coupler and up to 9 units with SEC401 bus coupler.
2. Can the unit operate in high-humidity environments?
-
Yes, it operates safely in 5% to 95% relative humidity, non-condensing.
3. What type of signals can the unit handle?
-
It supports analog and contact (discrete) signals.
4. Is the unit suitable for SIL 3 applications?
-
Yes, it is compliant with SIL 2 and SIL 3 requirements.
5. What power supply options are available?
-
100–120 V AC, 220–240 V AC, and 24 V DC.
6. Can it be installed in a standard 19-inch rack?
-
Yes, mounting requires 4 × M5 screws with insulation bushes.
7. What are the operating temperature limits?
-
The unit operates between -20°C and 70°C.
8. What standards does it comply with?
-
IEC 61508 for functional safety.
9. Is the unit compatible with existing ProSafe-RS I/O modules?
-
Yes, it interfaces directly with ProSafe-RS I/O modules.
10. What is the weight and size of the unit?
-
Dimensions: 482.6 × 221.5 × 205 mm, Weight: 5.9 kg.
Recommended Related or Series Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| SNB10D-223/CU2T | Safety Node Unit with terminating connector | 482.6 × 221.5 × 205 | 6.0 |
| SNB10D-225/CU2N | Upgraded Safety Node Unit, non-terminating | 482.6 × 221.5 × 205 | 5.9 |
| SNB10D-225/CU2T | Upgraded Safety Node Unit, terminating | 482.6 × 221.5 × 205 | 6.0 |
| SNB10D-223-01 | Safety Node Unit for SIL 2 applications | 482.6 × 221.5 × 205 | 5.8 |
| SNB10D-425/CU2N | High-capacity Safety Node Unit | 482.6 × 221.5 × 205 | 6.5 |
| SNB10D-425/CU2T | High-capacity Safety Node Unit, terminating | 482.6 × 221.5 × 205 | 6.5 |
Popular Yokogawa Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| ProSafe-RS SIF | Safety Instrumented Function Module | 482.6 × 221.5 × 200 | 5.7 |
| SNB10D-103 | Safety Node Unit for small systems | 482.6 × 221.5 × 200 | 5.5 |
| SSB401 | ESB Bus Interface Module | 482.6 × 221.5 × 180 | 5.2 |
| SEC402 | ESB Bus Coupler | 482.6 × 221.5 × 210 | 6.0 |
| SNB10D-301 | Redundant Safety Node Unit | 482.6 × 221.5 × 205 | 6.0 |
| SNB10D-325 | Advanced Safety Node Unit | 482.6 × 221.5 × 205 | 6.3 |
Frequently Asked Questions (FAQ)
1. What is the maximum number of SNB10D-223 units supported per ESB bus?
-
Up to 13 units with SEC402 bus coupler and up to 9 units with SEC401 bus coupler.
2. Can the unit operate in high-humidity environments?
-
Yes, it operates safely in 5% to 95% relative humidity, non-condensing.
3. What type of signals can the unit handle?
-
It supports analog and contact (discrete) signals.
4. Is the unit suitable for SIL 3 applications?
-
Yes, it is compliant with SIL 2 and SIL 3 requirements.
5. What power supply options are available?
-
100–120 V AC, 220–240 V AC, and 24 V DC.
6. Can it be installed in a standard 19-inch rack?
-
Yes, mounting requires 4 × M5 screws with insulation bushes.
7. What are the operating temperature limits?
-
The unit operates between -20°C and 70°C.
8. What standards does it comply with?
-
IEC 61508 for functional safety.
9. Is the unit compatible with existing ProSafe-RS I/O modules?
-
Yes, it interfaces directly with ProSafe-RS I/O modules.
10. What is the weight and size of the unit?
-
Dimensions: 482.6 × 221.5 × 205 mm, Weight: 5.9 kg.
Recommended Related or Series Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| SNB10D-223/CU2T | Safety Node Unit with terminating connector | 482.6 × 221.5 × 205 | 6.0 |
| SNB10D-225/CU2N | Upgraded Safety Node Unit, non-terminating | 482.6 × 221.5 × 205 | 5.9 |
| SNB10D-225/CU2T | Upgraded Safety Node Unit, terminating | 482.6 × 221.5 × 205 | 6.0 |
| SNB10D-223-01 | Safety Node Unit for SIL 2 applications | 482.6 × 221.5 × 205 | 5.8 |
| SNB10D-425/CU2N | High-capacity Safety Node Unit | 482.6 × 221.5 × 205 | 6.5 |
| SNB10D-425/CU2T | High-capacity Safety Node Unit, terminating | 482.6 × 221.5 × 205 | 6.5 |
Popular Yokogawa Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| ProSafe-RS SIF | Safety Instrumented Function Module | 482.6 × 221.5 × 200 | 5.7 |
| SNB10D-103 | Safety Node Unit for small systems | 482.6 × 221.5 × 200 | 5.5 |
| SSB401 | ESB Bus Interface Module | 482.6 × 221.5 × 180 | 5.2 |
| SEC402 | ESB Bus Coupler | 482.6 × 221.5 × 210 | 6.0 |
| SNB10D-301 | Redundant Safety Node Unit | 482.6 × 221.5 × 205 | 6.0 |
| SNB10D-325 | Advanced Safety Node Unit | 482.6 × 221.5 × 205 | 6.3 |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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