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The GE IS230TNDTH6A is a triple-modular redundant (TMR) discrete I/O module for the GE Mark VIe control system. It’s designed for high-reliability applications where a single point of failure in digital I/O is unacceptable.
Key Features
- Discrete I/O: The module handles binary signals, meaning it processes on/off commands and statuses. This includes both inputs (reading signals from devices like switches) and outputs (sending commands to devices like solenoids).
- TMR (Triple-Modular Redundant): This is the most important feature. The TMR configuration uses three identical modules operating in parallel. The system uses a voting algorithm to compare the inputs from the three modules, ensuring that the control system receives the correct information even if one or two of the input modules fail. This redundancy is a core component of the Mark VIe’s high-reliability architecture.
- 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.
- Mark VIe Integration: As part of the IS230 series, this module 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 IS230TNDTH6A is used in industrial settings where the loss of a digital I/O signal could lead to a catastrophic event or significant downtime.
- Power Generation: It is used in power plants to monitor the status of critical devices on gas and steam turbines, such as valve limit switches and emergency trip buttons. The TMR redundancy ensures that even if a module fails, the control system still receives vital safety data.
- Oil and Gas: In refineries and offshore platforms, it helps monitor critical discrete signals where continuous operation is essential, such as the open/closed status of emergency shutdown valves or the state of fire and gas detectors.
- Critical Safety Systems: The module is a fundamental component in any safety system where a failure to monitor or control a digital signal could result in significant equipment damage or a safety risk.
