Technical Overview
The Yokogawa SSC10S operates as a compact safety control unit within the ProSafe-RS safety instrumented system. This module provides SIL 2 certification according to IEC 61508, making it suitable for moderate-risk applications such as burner management and tank overfill protection. Its single-processor architecture offers deterministic scanning with a typical cycle time of 20 ms for standard safety loops. Additionally, the SSC10S supports both hot-standby and single configurations, providing deployment flexibility.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Safety Control Unit / Logic Solver |
| System | ProSafe-RS |
| Safety Integrity Level | SIL 2 (IEC 61508) / SIL 2 (IEC 61511) |
| Processor Architecture | Single-processor (1oo1) |
| Scan Cycle Time | 20 ms (typical) |
| Program Memory | 1 MB Flash (user program) |
| Data Memory | 512 KB RAM (retentive) |
| I/O Capacity | Up to 256 points per unit |
| Communication Interfaces | 1 × Ethernet (Modbus TCP) |
| Serial Ports | 1 × RS-485 (Modbus) |
| Battery Backup | Internal lithium (5 years) |
| Power Supply | 24 VDC |
| Current Draw | 300 mA |
| Diagnostic LEDs | RUN, ERR, I/O, COM |
| Dimensions (H x W x D) | 130 x 50 x 110 mm |
| Weight | 0.6 kg |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -20°C to 70°C |
| Protection Class | IP20 |
| Certifications | CE, CSA, IEC 61508 |
Processing Architecture and Memory
The Yokogawa SSC10S employs a single-processor design with comprehensive self-diagnostics, making it a cost-effective choice for SIL 2 applications. Its 1 MB Flash and 512 KB RAM accommodate moderate-sized safety logic programs and data tables. This configuration supports common safety functions such as emergency stops, high-pressure shutdowns, and temperature interlocks.
Application Suitability and Flexibility
This unit supports up to 256 I/O points, covering a wide range of medium-sized safety functions without requiring additional controllers. The SSC10S can operate in standalone mode or as part of a larger ProSafe-RS network. Its compact dimensions and lower power consumption make it ideal for retrofit projects and space-constrained control cabinets.
Diagnostics and Network Integration
The SSC10S integrates diagnostic status indicators that assist technicians with rapid troubleshooting and system validation. Its Ethernet interface connects seamlessly to Yokogawa CENTUM VP DCS, enabling unified monitoring across safety and control networks. With its solid-state construction and wide operating temperature range, the SSC10S provides reliable safety protection across diverse applications.
Details
| Weight | 0.6 kg |
|---|---|
| Dimensions | 130 × 50 × 110 mm |
Reviews
There are no reviews yet.