IS220PDIOH1B Mark VIe Discrete Input/Output Module | General Electric

Product Overview

The IS220PDIOH1B functions as a versatile Discrete Input/Output (I/O) pack within the General Electric Mark VIe control architecture. This Brand New original component provides the essential bridge between the IONet redundant controller network and discrete field devices. It handles high-speed digital signal acquisition and relay output commands, making it a cornerstone for turbine sequence logic, solenoid control, and status monitoring in power generation environments.

Technical Specifications

The IS220PDIOH1B balances a robust mechanical build with high-speed processing capabilities.

Engineering Advantages

• Hybrid Signal Management: The IS220PDIOH1B integrates both input and output functionalities into a single module. This dual-purpose design reduces the total hardware count in the control cabinet and simplifies spare parts inventory.

• Redundant Ethernet Connectivity: Two RJ45 Ethernet ports facilitate connection to the dual-redundant IONet. This ensures that the module continues to transmit critical digital status data even if one network branch encounters a fault.

• Simplified Field Wiring: The module plugs directly onto the associated terminal board via a high-density D-type connector. This eliminates internal cabinet jumper wires, reduces electromagnetic interference (EMI) pickup, and minimizes the risk of wiring errors during installation.

• Ruggedized Industrial Housing: The 0.8 kg aluminum and composite chassis protects internal surface-mount electronics from high-vibration environments typical of steam and gas turbine decks. It maintains thermal stability across a wide industrial temperature range without auxiliary cooling.

FAQs

• Is this IS220PDIOH1B unit a factory-new original or a refurbished part?

  We supply this module as 100% Brand New original factory stock. It arrives in the original GE protective packaging with all factory seals intact to ensure maximum field reliability.

• Can I replace an older H1A version with this H1B module?

  Yes. The H1B revision maintains backward compatibility with the H1A series while offering improved component longevity and updated firmware support. It fits existing Mark VIe terminal boards without requiring mechanical modifications.

• What are the primary indicators for hardware health on this pack?

  The front faceplate features status LEDs that indicate Power, IONet Link/Activity, and Module Health. A flashing green "Status" LED confirms the module has successfully synchronized with the Mark VIe controller.

• Does the module require external power wiring?

  The IS220PDIOH1B draws its operating power directly from the terminal board it sits on. Once you seat the module and connect the IONet cables, the unit initializes automatically through the controller's configuration software.