الوصف
The GE IS230TNDTH2AAX is a triple-modular redundant (TMR) discrete I/O 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 as per ATEX standards. This component is designed to be mounted on a DIN rail and handles on/off (binary) signals in a highly fault-tolerant configuration in hazardous locations.
Key Features
- Triple-Modular Redundant (TMR): This configuration uses three identical I/O packs operating in parallel. A voting algorithm compares the signals from all three packs, ensuring that the control system receives the correct information and sends the correct commands even if one or two modules fail.
- ATEX Certification: The “AX” signifies that the module has been certified for safe operation 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.
- Discrete I/O: The module handles both digital inputs (reading signals from devices like switches) and digital outputs (sending commands to devices like solenoids).
- DIN Rail Mounting: The module is designed for standardized installation on a DIN rail, which simplifies wiring and makes the system modular and easy to maintain.
Applications
The IS230TNDTH2AAX is used in mission-critical industrial settings where the loss of a digital signal could lead to a catastrophic event, particularly in hazardous environments.
- Power Generation: It is a core component in power plants for monitoring and controlling the status of critical devices on gas and steam turbines, especially in areas where combustible fuels are present.
- Oil and Gas: In refineries and offshore platforms, it monitors the status of emergency shutdown valves, fire and gas detectors, and other critical discrete signals where the ATEX rating is a safety requirement.
- Safety-Critical Systems: The module is integral to safety systems where a failure to monitor or control a digital signal could result in equipment damage or a safety risk.