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The GE IS230TRLSH1FAX is a triple-modular redundant (TMR), ATEX-certified, safety integrity level (SIL) rated, DIN rail-mounted module for the GE Mark VIe control system. The “AX” in the part number indicates the module is certified for use in potentially explosive atmospheres. This component is part of a complete assembly that provides a highly reliable and fault-tolerant interface for controlling output devices in safety-critical applications.
Key Features
- Triple-Modular Redundant (TMR): This is a key feature, indicating that the module is designed to work with three separate I/O packs. This TMR setup provides exceptional fault tolerance and is used in safety-critical applications where redundancy is essential for continuous operation. A voting algorithm compares the commands from all three packs, ensuring the control system sends the correct signal even if one or two modules fail.
- ATEX Certified: The “AX” signifies that the module meets the safety standards for operating in hazardous environments where flammable gases, vapors, mists, or dust may be present. This is a critical safety requirement in industries like oil and gas.
- Safety Integrity Level (SIL) Rated: The SIL rating indicates that this module has been designed and certified to meet stringent functional safety standards. This means it can be used in systems where a failure could lead to serious consequences, and the system is required to maintain its intended function or fail in a safe state.
- DIN Rail Mounting: The board is designed for standardized installation on a DIN rail, which is a common practice in industrial control cabinets. This simplifies wiring, saves space, and makes the system modular and easy to maintain.
- Mark VIe Integration: As part of the IS230 series, this assembly is a key component of the Mark VIe control platform, which is widely used for controlling turbines in power generation and other heavy industries.
Applications
The IS230TRLSH1FAX is used in mission-critical industrial settings where a loss of control could lead to a catastrophic event or significant downtime, especially in hazardous environments.
- Power Generation: It is a core component in power plants for connecting the wiring from critical relays and contactors to the control system, ensuring that a single-point failure does not compromise the control or safety system.
- Oil and Gas: In refineries and offshore platforms, it provides a stable and redundant connection for the wiring of emergency shutdown valves, fire and gas detectors, and other critical process equipment.
- Safety Instrumented Systems (SIS): The module’s TMR design, SIL rating, and ATEX certification make it suitable for use in safety-instrumented systems, where the goal is to bring a process to a safe state when dangerous conditions are met.
