GE Fanuc IS220PDOAH1AJ I/O Module – PLC Masters Ltd.

GE IS220PDOAH1A Discrete Output Pack

Series: Mark VIe Turbine Control System
Product Type: Discrete Output Pack
Manufacturer: GE (General Electric)
Model Number: IS220PDOAH1A

Overview

The GE IS220PDOAH1A is a high-performance Discrete Output Pack used within GE's advanced Mark VIe Turbine Control System. Unlike traditional PCBs, this device is a comprehensive I/O pack that plays a crucial role in automating turbine control by interfacing with relay outputs and feedback signals. It supports both solid-state and electromagnetic relays, making it highly versatile for various control environments.

Initially manufactured at GE’s Salem, Virginia facility, the IS220PDOAH1A is a widely deployed A-rated revision, commonly used across GE's Mark Series suite.

Key Features & Capabilities

• Relay Control: Supports up to 12 discrete output relays

• Feedback Signal Compatibility: Interfaces with various output terminal boards for signal feedback

• Processor Integration: Includes an embedded processor board with:

• Local power supplies for monitoring/sequencing

• Status-indicating LEDs

• High-speed processor

• Flash and RAM memory

• Communication & Connectivity:

• Two RJ45 Ethernet ports for network connectivity

• One 3-pin DC power input connector

• LED Indicators:

• Power

• Attention

• TxRx (Transmit/Receive)

• Link

• Chassis: Vented exterior design for heat dissipation and environmental durability

Technical Specifications

Applications

• Gas and steam turbines

• Wind turbines

• Power generation systems requiring relay-based control

• Industrial automation systems utilizing GE Mark VIe architecture

Additional Notes

• The IS220PDOAH1A is a successor to the IS220PDOAH1, incorporating the A-rated functional revision for improved performance and compatibility.

• Details on processor functions, signal routing, and hardware behavior can be referenced in the GEH-721G Mark VIe Control System Guide (see pages 223–230).