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The GE IS200TDBSH6A is a Simplex Discrete Input/Output Terminal Board for the GE Mark VIe (MKVIe) turbine control system. Its primary function is to provide a physical interface for both digital inputs and outputs, operating at 125 VDC or VAC.
Function and Purpose ⚙️
The IS200TDBSH6A is a multi-purpose board that acts as the crucial link between the turbine’s digital sensors and actuators and the main control processor. 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 125V rating is a key feature, indicating it is designed for a higher voltage than standard 24V I/O boards, which is common in many industrial control environments. The “Simplex” designation indicates that this board is used in applications where a single, non-redundant channel for these signals is sufficient.
Related Components 🤝
The IS200TDBSH6A 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.
