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SKU: IS220PDIOH1A
GE IS220PDIOH1A Mark VIe Discrete Input/Output Module
The GE IS220PDIOH1A is a high-performance Mark VIe Discrete I/O module providing 24 contact inputs and 12 relay outputs. Featuring dual Ethernet redundancy and opto-isolation, it ensures reliable digital signal management for gas turbine and DCS applications.
Product Overview
The GE IS220PDIOH1A functions as a core component within the Mark VIe Distributed Control System (DCS), specifically designed for high-reliability gas turbine management. This module bridges the gap between digital I/O Ethernet networks and discrete terminal boards by consolidating the roles of both input (PDIA) and output (PDOA) packs into a single, compact unit. It manages complex signal processing for both simplex and Triple Modular Redundant (TMR) architectures, ensuring continuous operation in critical industrial environments.
By integrating a shared processor board with a specialized acquisition board, the IS220PDIOH1A delivers rapid data conversion and transmission. The hardware design prioritizes system integrity, utilizing onboard intelligence to monitor loop health and provide real-time diagnostic feedback to the central controller.
Technical Specifications
- Manufacturer:Â General Electric (GE)
- Product Family:Â Mark VIe Control System / Multilin Series
- Model Number:Â IS220PDIOH1A
- Module Function:Â Discrete Input and Output (I/O) Pack
- Input Capacity:Â 24 Contact Inputs (Opto-isolated)
- Output Capacity:Â 12 Relay Outputs
- Communication:Â Dual RJ45 Ethernet ports (10/100 MB/s auto-negotiating)
- Hardware Interface:Â DC-62 connector for terminal board linking
- Diagnostics:Â Integrated Status LEDs and Infrared port for local serial access
- Power Input:Â 28V DC (nominal) via 3-pin connector
- Weight:Â 0.38 kg
- Dimensions:Â 6.0 cm x 13.0 cm x 8.3 cm
- Country of Origin:Â USA
Performance Features and Reliability
The IS220PDIOH1A incorporates several advanced engineering features to maintain performance in demanding settings:
- Network Redundancy:Â The module utilizes dual Ethernet ports to support redundant network paths. This configuration prevents signal loss during communication failures, which is vital for maintaining the safety of turbine operations.
- Electromagnetic Resilience:Â Internal RFI and EMI protection circuits shield the module from industrial electrical noise. Consequently, the hardware maintains signal accuracy even when installed near high-voltage equipment.
- Intelligent Startup:Â Integrated soft-start capabilities manage current inrush during power-up. This protection mechanism extends the lifespan of the internal electronics and prevents voltage drops on the local power bus.
- Signal Conditioning:Â Every input undergoes opto-isolation and signal conditioning before processing. This isolation protects the sensitive digital logic from external field surges and ground loops.
- Flexible Duplexing:Â The module supports both full and half-duplex modes at varying speeds. This flexibility allows the IS220PDIOH1A to integrate seamlessly into both legacy and modern Ethernet-based DCS infrastructures
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