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GE IS220PAICH1A｜Analog I/O Module｜
This module is a high-precision analog I/O module for the GE Mark VIe turbine control system, providing flexible analog signal acquisition and control output. It supports multi-type sensor inputs, redundant communication, and hazardous-area operation, making it suitable for critical turbine and industrial control applications.
General Specifications
Analog Inputs:
10 channels total
Channels 1–8:
+5 V / +10 V voltage input or
0–20 mA current input
Channels 9–10:
+1 mA current input or
0–20 mA current input
Analog Outputs:
2 channels, 4–20 mA current loop output
PAICH2: first output channel supports 0–200 mA
A/D & D/A Resolution:
16-bit conversion
Accuracy: ±0.1% of full scale
Communication Interfaces
2 × RJ45 Ethernet ports
Redundant communication
Infrared diagnostic serial port
DC-37 pin terminal board interface
Power Supply
24 VDC input
Typical power consumption: ≈ 5 W
Integrated power fault diagnosis and monitoring
Mechanical & Environmental Specifications
Form Factor:
Standard Mark VIe I/O module size
Fully compatible with Mark VIe cabinet slots
Weight: approximately 0.3 kg
Operating Temperature:
–22 °F to 149 °F (–30 °C to +65 °C)
Hazardous Area Certification:
Class I, Division 2
ATEX Zone 2
Terminal Board Compatibility
IS200STAIH1A
IS200STAIH2A
TBAIH1C
Documentation Reference
Core Manual: GEH-6721 – Mark VIe System Manual
Core Functions and Features
High-Precision Signal Processing
16-bit A/D and D/A conversion ensures accurate acquisition and output
Suitable for:
Temperature
Pressure
Flow
Other analog process signals
Provides reliable data for closed-loop turbine control
Flexible Signal Configuration
Multiple input signal types supported per channel
Adaptable to a wide range of field sensors
Analog outputs support precise actuator control
Redundancy and Safety
Supports TMR (Triple Modular Redundant) architectures
Certified for hazardous environments
Designed to meet SIL safety level requirements for turbine systems
Diagnostics and Maintenance
LED status indicators for module health
Infrared serial port for local diagnostics
Power failure alarm and self-monitoring
Supports online hot swapping, reducing downtime
Reliable Communication
Dual Ethernet ports provide communication redundancy
Fully compatible with the Mark VIe distributed control architecture
Ensures stable and deterministic data transmission
GE IS220PAICH1A｜Analog I/O module｜
Typical Applications
Steam and gas turbine control
Aeroderivative turbine packages
Balance-of-Plant (BOP) analog signal acquisition
Safety-critical industrial control systems
Hot selling models
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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