GE IS220PDIOH1B Discrete I/O Module | Mark VIe 24-In/12-Out

Core Discrete Signal Interface for Turbine Control

The GE IS220PDIOH1B is a Discrete I/O Module for the Mark VIe control system. This module provides 24 discrete input and 12 relay output channels for interfacing with field devices. It handles critical signals from switches, pushbuttons, and sensors while driving relays and contactors. Consequently, it is essential for monitoring and controlling turbine auxiliaries and safety interlocks.

Designed for High Reliability and Diagnostics

The IS220PDIOH1B features comprehensive self-diagnostics and fault detection for reliable operation. It supports hot-swap replacement for maintenance without process interruption. Furthermore, the module’s robust design ensures stable performance in harsh industrial environments. Additionally, it includes LED indicators for real-time status monitoring of each channel.

Technical Specifications

Parameter	Specification
Manufacturer / Series	General Electric (GE) / Mark VIe
Product Model	IS220PDIOH1B
Module Type	Discrete I/O Module
Discrete Inputs	24 Channels
Relay Outputs	12 Channels
Input Voltage	24 V DC
Compatibility	Mark VIe Control Systems
Certification	SIL 3 (IEC 61508)

Application in Turbine Control Systems

Plant engineers use this module for turbine auxiliary control, emergency shutdown, and safety interlock monitoring. Its high-integrity design ensures reliable operation in power generation facilities. The GE IS220PDIOH1B is a vital component for maintaining system safety and availability. Therefore, sourcing tested units is crucial for lifecycle management of Mark VIe systems.