The GE IS420UCSEH2A is a safety-certified dual-core controller module engineered for the Mark VIe series. This unit combines high-performance processing with SIL-rated functionality for critical protection and control applications. It executes complex safety logic deterministically while simultaneously managing standard regulatory control tasks.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Mark VIe Dual-Core Safety Controller |
| Processor | Intel Core i7-2655LE, 1.7 GHz (dual-core) |
| RAM | 2 GB industrial-grade DDR3 |
| Flash Storage | 2 GB SSD (industrial-grade) |
| Operating System | QNX Neutrino RTOS (safety-certified, SMP) |
| Safety Certification | IEC 61508 SIL 2/3 capable |
| Ethernet Ports | 2 x IONet (10/100 Mbps) + 2 x Plant (10/100/1000 Mbps) |
| Console Port | 1 x RJ-45 serial |
| USB Ports | 2 x USB 2.0 |
| Real-Time Clock | Battery-backed, 5-year retention |
| Power Consumption | 38 W typical; 45 W peak |
| Cooling | Fanless, convection-cooled |
| Dimensions (W x H x D) | 63.5 mm x 190 mm x 176 mm |
| Weight | 1.1 kg (2.4 lbs) |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Protection Rating | IP20 |
| MTBF | > 200,000 hours |
Dual-Core Safety Architecture
The GE IS420UCSEH2A leverages its dual-core architecture for enhanced safety and performance. One core handles critical safety functions while the second manages standard control and communication tasks. The module performs continuous cross-checking and diagnostic tests on every scan cycle. This configuration achieves SIL 2/3 certification while maintaining responsive control performance. The 2 GB RAM supports complex safety logic, and the 2 GB SSD stores application programs and event logs.
Connectivity and System Integration
This safety controller integrates seamlessly with plant networks through its four Ethernet ports. The two IONet interfaces enable deterministic communication with I/O packs and remote chassis. The two plant network ports connect to supervisory systems, HMIs, and data historians. The USB ports simplify firmware updates and configuration changes. Moreover, the serial console provides direct access for commissioning and diagnostic activities.
Rugged Construction for Critical Environments
Engineers designed the GE IS420UCSEH2A for continuous operation in harsh industrial settings. Its fanless, convection-cooled design eliminates moving parts and reduces maintenance frequency. The module maintains reliable operation across an extended temperature range. Furthermore, its robust construction meets stringent requirements for vibration, humidity, and electromagnetic immunity commonly found in power plants and heavy industry.
Details
| Weight | 1.1 kg |
|---|---|
| Dimensions | 63.5 × 190 × 176 mm |



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