Overview
The Yokogawa SNB10D-445/CU2T Safety Node Unit provides a reliable communication interface between the ProSafe-RS Safety Control System and field I/O modules. Designed to ensure high integrity in safety-critical applications, it enables fast, deterministic data exchange and secure redundancy within distributed safety networks.
Moreover, the unit integrates seamlessly with Yokogawa’s ProSafe-RS architecture, supporting SIL3-rated systems and ensuring compliance with international safety standards. With its rugged design and intelligent diagnostics, the SNB10D-445 guarantees operational stability and easy maintenance in harsh industrial environments.
Technical Specifications
| Parameter |
Specification |
| Product Model |
SNB10D-445/CU2T |
| Product Type |
Safety Node Unit |
| Communication Interface |
ESB Bus (Ethernet Safety Backbone) |
| Safety Standard Compliance |
IEC 61508 SIL3 |
| Power Supply |
24 VDC nominal |
| Power Consumption |
Approx. 8 W |
| Operating Temperature |
0°C to +55°C |
| Storage Temperature |
-20°C to +70°C |
| Relative Humidity |
5% to 95% (non-condensing) |
| Mounting Type |
DIN rail or panel mount |
| Supported I/O Modules |
Up to 8 safety I/O modules per node |
| Communication Cable |
Shielded twisted pair |
| Dimensions |
120 mm (H) × 45 mm (W) × 130 mm (D) |
| Weight |
Approx. 0.6 kg |
| Certifications |
CE, UL, CSA, and RoHS compliant |
| System Compatibility |
Yokogawa ProSafe-RS and CENTUM VP systems |
FAQ
Q1: What is the main role of the SNB10D-445/CU2T unit?
A1: It serves as a communication node between the ProSafe-RS controller and field I/O modules for safety system applications.
Q2: Can this module be used in SIL3-rated systems?
A2: Yes, it meets IEC 61508 SIL3 safety integrity level standards.
Q3: What communication protocol does it use?
A3: It utilizes Yokogawa’s ESB Bus for high-speed and reliable data exchange.
Q4: Is the unit compatible with standard CENTUM VP networks?
A4: Yes, it integrates seamlessly with both ProSafe-RS and CENTUM VP control architectures.
Q5: How easy is it to maintain this unit?
A5: The modular design and built-in diagnostics make maintenance quick and straightforward.
