GE IS200AEADH4ADA – Analog Input Terminal Board
Product Description: The GE IS200AEADH4ADA is a critical component within the Mark VIe series of Speedtronic turbine control systems from GE. It functions as a High-Density Analog Input Terminal Board. Its primary role is to acquire multiple low-voltage analog DC signals (like those from sensors – temperature via RTDs/TCs, pressure, flow, position, etc.) from the field, condition them, digitize them, and transmit the data to the system’s central controller for monitoring, control sequences, and protective actions.
Product Parameters & Specifications (Typical):
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Parameter Category
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Specification
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Notes
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|---|---|---|
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GE Model Number
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IS200AEADH4ADA
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Part of Mark VIe I/O Pack
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Series
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Mark VIe Speedtronic
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GE’s Turbine/Plant Control Platform
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Module Type
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High-Density Analog Input Terminal Board
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Installs in an I/O Pack slot
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Primary Function
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Analog Signal Acquisition & Digitization
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For monitoring & control
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Signal Type
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Low-Level Analog DC Voltage Inputs
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Typically mV or V range
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Input Channels
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Typically 16 channels
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High-density configuration
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Input Range
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Programmable (e.g., ±10V, ±5V, ±1V, 0-10V, etc.)
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Configured per application need
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Resolution
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16-bit minimum
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High-precision conversion
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Scan Rate
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Configurable (e.g., per group, typical rates apply)
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Depends on system load & config
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Accuracy
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High Accuracy (Specific % of reading or range, e.g., ±0.1%)
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Refer to detailed datasheet
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Isolation
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Channel-to-Channel & Channel-to-Bus Isolation
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Critical for noise immunity & safety
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Isolation Voltage
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Typically 1500 VAC or higher
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Protects system & field wiring
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Termination
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Spring-clamp or screw terminal blocks
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On-board for field wiring
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HART Support
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ADA suffix denotes HART protocol capability
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Key Feature: Allows digital communication over analog wires
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Protocol/Interface
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Communicates via VME backplane to controller (VMIC)
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Uses Mark VIe backplane
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Power Supply
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Derived from I/O Pack backplane (+5V, +3.3V, etc.)
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No external power required
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Operating Temp.
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Standard Industrial Range (e.g., 0°C to +60°C)
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Certifications
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Designed to meet relevant industrial & safety standards (e.g., UL, CE, ATEX for specific assemblies)
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System level dependent
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Note: The table above lists typical specifications. Exact values (accuracy, scan rates, etc.) depend on the specific hardware revision, firmware, and system configuration. Always consult the official GEH-6855 Mark VIe Systems Guide or specific module datasheet for definitive parameters.
Key Features:
- High Channel Density: Reduces footprint and cost per point.
- High Resolution & Accuracy: Ensures precise measurement of critical process variables.
- Programmable Ranges: Flexible configuration for various sensor types and signal levels.
- Robust Isolation: Essential for noise rejection, signal integrity, and safety in harsh industrial environments.
- HART Protocol Support (ADA suffix): Critical Feature: Enables two-way digital communication with HART-enabled smart field devices (transmitters, positioners) over the standard 4-20mA analog wiring. Allows for device configuration, diagnostics, and multivariable data access without separate wiring.
- Designed for Reliability: Built to withstand industrial environments (temp, vibration, EMI).
- Hot-Swappable (System Dependent): Often designed to be replaceable while the system is powered (within Mark VIe safety protocols).
- Integrated Termination: Simplifies field wiring connection.
- Compatibility: Seamless integration within the Mark VIe controller architecture and ToolboxST engineering tools.
Function & Role: The IS200AEADH4ADA acts as the interface between low-level analog field sensors/devices and the Mark VIe controller. It:
- Acquires analog voltage signals.
- Conditions signals (filtering, isolation).
- Digitizes the analog signals using high-resolution A/D converters.
- Supports HART communication multiplexed on analog channels.
- Transmits the digital data (and HART data) to the Mark VIe controller via the VME backplane.
- Provides electrical isolation between field wiring and the sensitive control system electronics.
Purpose & Primary Uses:
- To monitor critical process parameters (temperature, pressure, flow, level, vibration, position, etc.) in real-time.
- To provide high-fidelity input data for the control system’s logic, algorithms, and protective functions.
- To enable closed-loop control by providing feedback signals.
- To diagnose process or equipment issues based on sensor readings.
- To interface with HART smart devices for configuration, calibration, and advanced diagnostics without disrupting the 4-20mA signal.
Application Fields: The IS200AEADH4ADA is primarily used in industries requiring high-reliability, distributed control for critical rotating equipment and processes, particularly:
- Power Generation:
- Gas Turbine Power Plants (Simple Cycle & Combined Cycle)
- Steam Turbine Power Plants
- Hydroelectric Plants
- Distributed Power (Aero-derivative Gas Turbines)
- Balance of Plant (BOP) monitoring & control
- Oil & Gas:
- Gas Compression Stations (Pipeline)
- Oil & Gas Production Platforms (Onshore/Offshore)
- LNG Liquefaction & Regasification Facilities
- Refineries (Process monitoring)
- Industrial Processing:
- Chemical Plants
- Petrochemical Plants
- Pulp & Paper Mills
- Metal Processing
- Water & Wastewater Treatment Plants
- Marine:
- Propulsion control and monitoring for ships using gas turbines or diesel engines.
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