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The GE IS230TAISH2C is a basic analog I/O assembly for the GE Mark VIe control system, specifically designed for triple-modular redundant (TMR) operation. The part number indicates that it’s an assembly that can be configured for either simplex or redundant use, making it suitable for high-reliability, safety-critical applications. The module is also designed for DIN rail mounting.
Key Features
- TMR (Triple-Modular Redundant): This is the most important feature. The TMR configuration uses three identical modules operating in parallel, and the system uses a voting algorithm to determine the correct output. This ensures that the system can continue to operate even if one or two modules fail. It is a critical design for systems that require extremely high availability and safety.
- Analog I/O: The module handles both analog inputs (from sensors like pressure and flow transmitters) and analog outputs (to devices like valves and actuators). This allows for both monitoring and controlling continuous process variables.
- DIN Rail Mounting: The module is built for standardized installation on a DIN rail, which is a common practice in industrial control cabinets. This simplifies wiring, saves space, and makes installation and maintenance more efficient.
- Safety Integration: As a TMR module, it is a key component for building a Safety Instrumented System (SIS). Its redundant architecture provides a high level of fault tolerance, which is essential for preventing catastrophic failures.
Applications
The IS230TAISH2C is used in industrial settings where the loss of an analog signal could lead to a catastrophic event or significant downtime.
- Power Generation: It is used in turbine control systems to monitor and control critical variables like fuel flow or pressure. The TMR configuration ensures that the turbine can continue to operate safely even if a module fails.
- Oil and Gas: In refineries and offshore platforms, it helps manage critical process variables with a high degree of reliability to prevent hazardous conditions. The redundancy is essential for maintaining control in a harsh environment.
- Process Safety: This module is a fundamental component in any process where a failure in monitoring or control could result in significant equipment damage or a safety risk.
