Overview
The IS420UCSCS2A is a dual-core controller module manufactured by General Electric (GE) for the Mark VIeS Safety control system. It executes safety control applications and supports Simplex, Dual, and Triple Modular Redundancy (TMR) configurations. Furthermore, its AMD G-Series 1.6 GHz dual-core processor and 2 GB DDR3 SDRAM provide the computing resources required for safety-related control tasks.
Functional Description
The IS420UCSCS2A runs safety applications within the GE Mark VIeS platform. It uses the QNX Neutrino real-time, multitasking operating system to execute control tasks and manage safety-related operations.
The controller supports functional safety applications targeting SIL 2 and SIL 3 capabilities. Its hardware and software are designed for safety instrumented system (SIS) applications and comply with IEC 61508 requirements, according to the supplied product information.
Processing and Memory
The controller features a dual-core AMD G-Series microprocessor operating at 1.6 GHz. It includes 2 GB of DDR3-1066 SDRAM and 128 GB of storage for controller software and associated data.
Meanwhile, the real-time QNX Neutrino operating system manages multitasking and supports the execution of safety control applications.
Redundancy and System Configuration
The IS420UCSCS2A supports three controller configurations:
- Simplex: Uses a single controller.
- Dual: Supports a dual-controller configuration.
- TMR: Supports Triple Modular Redundancy for redundant control architecture.
Furthermore, the module is available beginning with ControlST version 07.02. The selected redundancy arrangement determines the controller configuration required for the safety control system.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | IS420UCSCS2A |
| Brand | General Electric (GE) |
| Series | Mark VIeS |
| Product Type | Dual-Core Controller Module |
| Processor | Dual-core AMD G-Series |
| Processor Speed | 1.6 GHz |
| Memory | 2 GB DDR3-1066 SDRAM |
| Storage | 128 GB |
| Power Supply Voltage | 28 VDC |
| Operating Voltage Range | 18-32 VDC |
| Redundancy Configurations | Simplex, Dual, TMR |
| Functional Safety Capability | SIL 2 and SIL 3 applications |
| Operating System | QNX Neutrino |
| System Software | ControlST 07.02 or later |
| Mounting | DIN-rail mounting |
| Operating Temperature | -40 to 70 deg C |
| Dimensions | 168 x 150 x 55 mm |
| Weight | 1,327 g |
| Lifecycle Status | Active |
| Country of Origin | United States |
| Manual | GEI-100867A |
Frequently Asked Questions
Q: Which redundancy configurations does the IS420UCSCS2A support?
A: The controller supports Simplex, Dual, and TMR configurations. The required arrangement depends on the redundancy architecture of the Mark VIeS safety control system.
Q: Which operating system does the IS420UCSCS2A use?
A: It runs QNX Neutrino, a real-time multitasking operating system designed to execute safety control applications.
Q: Which ControlST version supports the IS420UCSCS2A?
A: The module is available beginning with ControlST version 07.02. Confirm the installed system software version before selecting the controller for an existing installation.
















