Product Overview
The GE IS420UCSCS2A is a dual core controller module engineered by General Electric for the Mark VIeS Series. This safety-critical component executes functional safety loops to achieve SIL 2 and SIL 3 capabilities within GE Distributed Control Systems (DCS). Designed for operators experienced in safety-instrumented system (SIS) applications, the IS420UCSCS2A helps mitigate risk in critical safety functions.
This controller runs on the QNX Neutrino real-time, multi-tasking operating system and supports Simplex, Dual, and TMR redundancy configurations. It is available starting with ControlST V07.02, ensuring compatibility with modern control system architectures.
Technical Specifications
| Specification |
Value |
| Part Number |
IS420UCSCS2A |
| Manufacturer |
General Electric |
| Series |
Mark VIeS |
| Product Type |
Dual Core Controller Module |
| Life Cycle Status |
Active |
| Redundancy Configurations |
Simplex, Dual, and TMR |
| Microprocessor |
Dual core, 1.6 GHz AMD G-Series |
| Span |
-8 mV to +45 mV |
| Power Supply Voltage |
28 V dc |
| Voltage Range |
18 - 32 VDC |
| Memory |
2 GB DDR3-1066 SDRAM |
| Memory Storage |
128 GB |
| Mounting |
DIN-rail mounting |
| Operating Temperature |
-40 to 70°C |
| Size |
168 x 150 x 55 mm |
| Weight |
1,327 g |
| Manual |
GEI-100867A |
Key Features
-
Compact, stand-alone design — single module, no battery, no fan, no jumper settings.
-
Flexible communication — interfaces with I/O modules via IONet, PROFINET, High-speed Serial Link (HSSL), and other interfaces.
-
Expandable — can be expanded to include seven additional I/O ports.
-
Over-temperature protection — internal circuitry generates a warning at 85°C and shuts down at 95°C; microprocessor warning at 105°C and shutdown at 107°C.
-
Software configuration — all settings are configured via ToolboxST on a Windows operating system.
Applications
The GE IS420UCSCS2A is ideal for a wide range of industrial applications, including:
- Wind turbines and gas/steam turbines
- Combined-cycle power plants
- Safety-instrumented systems (SIS) requiring SIL 2/3 performance
- Distributed control systems (DCS) with high reliability demands
Its dual-core processing power and redundancy options make it suitable for critical processes where downtime is unacceptable.
Installation & Setup
Mount the IS420UCSCS2A on a standard DIN rail. Ensure the power supply voltage is within the 18–32 VDC range (nominal 28 V dc). No hardware jumpers are required; all configuration is performed via software using ToolboxST. The controller communicates with I/O modules through the on-board IONet interface and other supported protocols.
Maintenance & Reliability
The IS420UCSCS2A is designed for long-term reliability with no moving parts (no fans) and a wide operating temperature range of -40 to 70°C. Its over-temperature protection logic safeguards internal electronics, automatically rebooting when temperatures drop below 75°C after a high-temperature shutdown. Regular inspection of the DIN-rail mounting and cable connections is recommended to ensure optimal performance.
Compatibility & Integration
This controller integrates seamlessly into GE Mark VIeS systems and supports communication with I/O packs via IONet, PROFINET, and HSSL. It can be configured for Simplex, Dual, or TMR redundancy to match your system's reliability requirements. For non-safety loops, it can interface with a non-safety Mark VIe controller (e.g., IS420UCSCH1B) via EGD protocol for data exchange.
Selection Guide
When selecting the IS420UCSCS2A, verify your system's redundancy requirements (Simplex, Dual, or TMR) and confirm that your control software version is compatible (ControlST V07.02 or later). Ensure your power supply provides the required 28 V dc within the acceptable range. For expert advice and competitive pricing, trust PLC Source PRO as your reliable supplier of industrial automation parts.