Description
🔹 Product Description
The GE IS220PDIOH1B REV. B is a PDIO Discrete I/O Pack Module designed for GE Mark VIe turbine control systems. It provides the interface between field discrete signals and the Mark VIe control network through a compatible discrete I/O terminal board. The I/O Pack performs local signal processing and communicates with the main controller over Ethernet, making it suitable for distributed turbine I/O applications. The module supports Mark VIe simplex, dual, and TMR architectures when paired with compatible terminal boards and system hardware.
🔹 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS220PDIOH1B REV. B |
| Series | Mark VIe |
| Product Name | Discrete I/O Pack Module |
| Functional Acronym | PDIO |
| Place of Manufacture | USA |
| Product Status | New Surplus / Original |
| Dimensions | Approx. 18.5 × 10.5 × 6.5 cm |
| Weight | Approx. 0.5 kg |
| Communication | Dual Ethernet |
| Power | 28 VDC nominal system supply |
| Discontinued | Legacy product; verify current OEM availability |
🔹 Key Features
• Designed for GE Mark VIe distributed I/O systems
• PDIO discrete I/O Pack architecture
• Interfaces field discrete signals with the Mark VIe controller
• Dual Ethernet network communication
• DC-37 interface to the associated terminal board
• Local processor performs I/O signal acquisition and processing
• LED indicators provide power, status, and network diagnostics
• Supports simplex, dual, and TMR system architectures when properly configured
• Designed for use with compatible Mark VIe discrete terminal boards
• Suitable for turbine control, monitoring, and replacement applications
🔹 Q&A
Q: What is the IS220PDIOH1B used for?
A: It is a GE Mark VIe Discrete I/O Pack used to acquire and process discrete field signals and communicate them to the control system.
Q: What does PDIO stand for?
A: PDIO identifies the Discrete I/O Pack functional family used in the Mark VIe system.
Q: Does the module connect directly to field wiring?
A: Field wiring is normally terminated on a compatible Mark VIe terminal board, while the PDIO I/O Pack connects to that terminal board through its dedicated interface.
Q: Does the IS220PDIOH1B support Ethernet communication?
A: Yes. The module provides dual Ethernet interfaces for communication with the Mark VIe control network.
Q: Can it be used in a TMR system?
A: Yes. The Mark VIe I/O architecture supports simplex, dual, and TMR configurations when the appropriate terminal boards and system components are used.
Q: What is the significance of REV. B?
A: REV. B identifies the hardware revision of the module. The replacement should match the required hardware revision and system configuration.
Q: What should be checked before installation?
A: Verify the complete part number, revision, mating terminal board, I/O channel configuration, Ethernet topology, firmware compatibility, and system redundancy arrangement.
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