الوصف
The GE IS200TDBTH2A is a Discrete I/O Terminal Board for the GE Mark VIe (MKVIe) turbine control system. It provides a physical interface for a mix of digital inputs and outputs from field devices. The “TMR” in the name indicates that it is designed for a Triple Modular Redundancy (TMR) system configuration, which provides enhanced reliability and fault tolerance.
Function and Purpose ⚙️
The IS200TDBTH2A is a crucial component in high-reliability applications where TMR is employed. It acts as the interface between the turbine’s digital sensors and actuators and the main control processors. It handles two types of signals:
- Digital Inputs: It receives on/off signals from devices like limit switches and pressure switches, providing status information to the control system.
- Digital Outputs: It receives commands from the control system and sends on/off signals to devices like solenoids, relays, and motor starters to perform a specific action.
The TMR configuration means that there are three redundant processors and three corresponding I/O channels. The IS200TDBTH2A is designed to be part of this system, providing a robust and secure connection point for the wiring to ensure that even if one channel fails, the other two can continue to operate and maintain control. This prevents a single point of failure from causing a trip or shutdown.
Related Components 🤝
The IS200TDBTH2A works in conjunction with other components of the Mark VIe system, including:
- Processor Cards: The main CPU of the system, which reads the digitized input data and sends digital commands for the outputs.
- I/O Packs: These electronic modules mount directly on the terminal board and contain the active electronics for signal processing and conversion.
- Field Devices: The board connects to a variety of digital sensors and actuators to acquire data and perform control actions.




+86 15340683922
+86 15340683922