The Yokogawa SSC10S is a Safety System Controller (SIS CPU module) used in the Yokogawa ProSafe-RS Safety Instrumented System.
It serves as the core logic processing unit for safety-related applications such as:
- Emergency Shutdown System (ESD)
- Fire & Gas System (F&G)
- Burner Management System (BMS)
- Process interlock safety control
Compared with SSC10D, the SSC10S is a variant designed for different system configurations / revision sets within ProSafe-RS architectures.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Yokogawa |
| Model | SSC10S |
| Product Type | Safety System Controller (SIS CPU) |
| System Platform | ProSafe-RS |
| Function | Safety logic execution / control processing |
| Architecture | Redundant safety CPU system |
| Communication | ESB bus / system network (depends on configuration) |
| Redundancy | Supported (dual CPU configuration) |
| Diagnostics | Self-diagnostics + fault monitoring |
| Safety Integrity | Designed for SIL3 system architectures |
Physical Characteristics
| Item | Specification |
|---|---|
| Dimensions (W × H × D) | Approx. 130 × 100 × 40 mm (module class) |
| Weight | ≈ 0.8 – 1.2 kg |
| Mounting Type | Rack-mounted CPU module |
| Installation | ProSafe-RS safety system cabinet |
| Cooling | Cabinet natural ventilation |
System Role
The SSC10S functions as the central safety logic controller:
Field signals → Input modules → SSC10S (logic processing) → Output modules → Final shutdown devices
It performs:
- Safety logic execution
- Interlock decision processing
- Redundant CPU synchronization
- Real-time fault monitoring
- Safe-state transition control
Key Features
- Safety-rated CPU module for ProSafe-RS
- Redundant architecture for high availability
- Continuous self-diagnostics
- Deterministic safety execution
- SIL3-capable system design (system-level certification)
- Seamless integration with Yokogawa SIS modules
