IS200STCIH2AED

The GE IS200STCIH2A is a rugged Status & Timing Control Input Handler (STCIH) board designed for use in GE EX2100 Excitation Control Systems and Mark VI Speedtronic turbine automation platforms. This module is responsible for receiving, conditioning, and routing status, timing, and permissive input signals from distributed field devices, remote I/O modules, and auxiliary systems into the excitation controller’s logic. It provides robust input handling, isolation, and filtering—ensuring that discrete inputs such as permissives, breaker statuses, interlocks, and alarms are accurately represented within the control logic.

Technical Specifications

Parameter	Specification
Model	IS200STCIH2A
Module Type	Status & Timing Control Input Handler Board
System Compatibility	GE EX2100 / Mark VI Speedtronic
Primary Function	Condition and route discrete status/permissive inputs
Logic Inputs	Multiple discrete inputs from field devices and remote I/O
Signal Conditioning	Filtering, isolation buffering, transient suppression
Operating Environment	Industrial automation cabinet conditions
Mounting	Rack/backplane mounting in control cabinet
Dimensions (L × W × H)	250 × 120 × 35 mm (approx.)
Weight	~0.85 kg (approx.)
Typical Usage	Status and permissive input interfacing for excitation/turbine control

Dimensions and weight are approximate and provided in combined length × width × height format for planning.

Recommended Companion Modules

The IS200STCIH2A is often used alongside these components to complete an excitation or turbine control cabinet:

IS200DSPXH1D – Digital Signal Processor Board
IS200ERBPG1A – Remote I/O Backplane Board
IS200STAIH2A – Start Inhibit & Auxiliary Interface Board
IS200STAOH2A – Status & Timing Output Handler Board
IS200EMIOH1A – Main I/O Interface Board

Together, these boards manage discrete input and output signals, logic processing, and condition monitoring for complex control sequences.

Popular GE Mark VI / EX2100 Modules

In systems using the STCIH board, you’ll also often find:

IS200EACFG3A – AC Feedback Signal Conditioning Module
IS200EDCFG1B – DC Feedback Module
IS200EHPAG1A – Gate Pulse Amplifier Board
IS200EXHSG3A – High-Speed Gate Control Module
IS200ESELH2A – Exciter Selector Board

These modules combine to handle feedback acquisition, actuation, and safety logic.

Applications

The IS200STCIH2A board is used for:

Discrete status and permissive input conditioning
Safety interlock signal interfacing (breaker status, limit switches)
Start/stop permissive logic integration
Event and timing input synchronization
SCADA-linked input status aggregation

Its reliable input handling is essential for accurate controller logic decisions and safe system operation.

Key Advantages

Robust Signal Conditioning
Ensures clean, filtered inputs for control logic by suppressing noise and transient spikes.

Comprehensive Input Handling
Accepts a wide range of discrete signals from field and auxiliary devices.

Industrial-Grade Isolation
Buffering and isolation improve noise immunity and protect controller logic.

Modular & Serviceable Design
Field-replaceable board simplifies maintenance and reduces downtime.

Improved Logic Integrity
Accurate input representation ensures consistent controller decision-making and system safety.

Technical FAQs

What is the main purpose of the IS200STCIH2A?
It conditions and routes status, permissive, and timing input signals into the controller’s logic.
Where is this board installed?
Inside the control cabinet, mounted on a rack or backplane within EX2100 or Mark VI systems.
What types of signals does it handle?
Discrete inputs such as permissives, digital status flags, alarms, and timing triggers.
Why is input conditioning important?
It filters noise, suppresses transients, and isolates signals to ensure accurate logic interpretation.
What are its physical dimensions?
250 × 120 × 35 mm (approx.).
What is its approximate weight?
~0.85 kg (approx.).
Can it interface with remote I/O?
Yes — it is typically connected to remote I/O backplanes and field modules.
Is noise suppression provided?
Yes — signal filtering and buffering improve input integrity.
Does it support SCADA integration?
Yes — through the main I/O interface and supervisory systems.
Why is this board critical?
Accurate and reliable input logic handling is essential for safe turbine start, stop, and protective interlocks in industrial control systems.