Description
Overview
The IS220PDIAH1B Discrete I/O Pack is part of GE’s Mark VIe control platform, designed to acquire and process discrete field signals in turbine and power‑generation applications. This module provides a reliable interface between Mark VIe controllers and a variety of compatible terminal boards, enabling flexible system configuration and dependable signal handling in both hazardous and non‑hazardous environments.
Functional Characteristics
The module supports a nominal 24 VDC power supply (up to 28.6 VDC maximum) and is engineered to withstand demanding industrial conditions. Its discrete input channels accept voltages up to 32 VDC, ensuring compatibility with a wide range of field devices.
Key functional features include:
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Compatible with multiple GE terminal boards (e.g., IS200STCIH1A, IS400TBCIH2C)
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UL‑certified for Class I, Division 2 and Zone 2 hazardous locations
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Wide operating temperature range from −30°C to +65°C
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Rugged enclosure suitable for turbine enclosures and power‑plant environments
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Designed for continuous operation in high‑vibration and high‑temperature areas
The IS220PDIAH1B integrates seamlessly with Mark VIe controllers, providing stable data acquisition and reliable communication for discrete control functions.
Technical Specifications
| Parameter |
Specification |
| Model |
IS220PDIAH1B |
| Product Type |
Discrete I/O Pack |
| Brand |
GE |
| Series |
Mark VIe |
| Dimensions |
8.2 × 12.2 × 6 cm |
| Weight |
0.36 kg |
| Origin |
USA |
| HS Code |
8537101190 |
| Condition |
New |
| Availability |
In Stock |
| Input Voltage |
24 VDC nominal (28.6 VDC max) |
| Input Range |
Up to 32 VDC |
| Operating Temperature |
−30°C to +65°C |
| Certifications |
UL Class I/Div 2, Zone 2 |
| System Compatibility |
DCS / Mark VIe |
| Minimum Order |
1 unit |
Integration and System Role
The IS220PDIAH1B is used to:
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Acquire discrete field signals from switches, relays, and protection devices
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Interface with Mark VIe terminal boards for flexible system design
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Support hazardous‑area installations requiring certified hardware
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Maintain reliable operation in turbine control cabinets
Its robust design and wide voltage tolerance make it suitable for continuous operation in mission‑critical power‑generation environments.
Application Scenarios
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Gas turbine control systems
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Steam turbine protection and monitoring
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Power‑plant auxiliary equipment control
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Hazardous‑area industrial automation
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Mark VIe system expansions and retrofits
FAQ
Q: What terminal boards are compatible with the IS220PDIAH1B? A: It supports several GE terminal boards, including IS200STCIH1A and IS400TBCIH2C.
Q: Can this module be used in hazardous locations? A: Yes. It carries UL certifications for Class I/Div 2 and Zone 2 environments.
Q: What is the maximum input voltage for discrete channels? A: Up to 32 VDC.
