GE IS200STCIH2A Mark VIe Digital Input Module IS230SNCIH2A

Product Description

High-Density Discrete Signal Acquisition

The GE IS200STCIH2A (alternatively identified as IS230SNCIH2A) is a high-performance discrete digital input module engineered for the Mark VIe and Mark VIeS turbine control platforms. This module serves as the primary interface for binary field signals, collecting critical data from limit switches, pressure switches, relays, and protective sensors. By converting these raw field signals into deterministic logic, the IS200STCIH2A enables real-time monitoring and sequence-of-events (SOE) recording, which is essential for maintaining the safety and operational integrity of large-scale gas and steam turbines.

Signal Integrity and Galvanic Isolation

Designed for high-voltage and high-interference environments, the IS200STCIH2A features robust optical and electrical isolation. This galvanic barrier protects the sensitive control system backplane from field-side transients and ground loops. The module is optimized for triple-modular redundancy (TMR) architectures, allowing three separate I/O packs to monitor the same input signal simultaneously. This fault-tolerant design ensures that a single component failure will not compromise the turbine's protection logic or cause an unwanted trip.

Detailed Technical Specifications

The following technical data details the electrical and mechanical parameters for the IS200STCIH2A and IS230SNCIH2A.