Description
🔹 Product Description
The General Electric IS220PDIOH1A is a PDIO Discrete Input/Output Module designed for the Mark VIe turbine control system. It combines discrete input acquisition and relay output control in one I/O pack, providing the interface between the Mark VIe I/O Ethernet network and compatible discrete terminal boards. The module supports up to 24 contact inputs and 12 relay output channels and uses a processor board with a dedicated acquisition section for discrete I/O functions. The IS220PDIOH1A is compatible with IS200TDBSH2A and IS200TDBTH2A terminal boards for simplex and TMR configurations. It provides dual Ethernet communication ports, a three-pin power input, diagnostic LEDs, and a DC-62 field interface. GE documentation identifies the module as part of the Mark VIe control system and specifies its use with the associated TDBS/TDBT terminal boards.
📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | General Electric (GE) |
| Model | IS220PDIOH1A |
| Series | Mark VIe |
| Product Name | PDIO Discrete Input/Output Module |
| Place of Manufacture | United States |
| Product Status | New / Unused |
| Dimensions | Approx. 6.0 × 13.0 × 8.3 cm |
| Weight | Approx. 0.35–0.38 kg |
| Original Country | USA |
| Power Supply | 28 V DC nominal, 27.4–28.6 V DC range; 0.81 A max |
| Discontinued | Legacy / superseded by IS220PDIOH1B |
⚙️ Key Features
• Supports up to 24 discrete/contact inputs
• Provides up to 12 relay output channels
• Dual RJ45 Ethernet ports for I/O network communication
• DC-62 connector for terminal board interface
• Optical input isolation up to 1500 V
• Hardware input filtering of approximately 4 ms
• Designed for simplex and TMR Mark VIe configurations
• Compatible with TDBS and TDBT terminal board configurations
❓ Common Questions & Answers
Q: What system is the IS220PDIOH1A used in?
A: It is designed for the GE Mark VIe turbine control system and functions as a distributed discrete I/O pack.
Q: What is the main function of the PDIO module?
A: It combines discrete input acquisition and relay output control, providing a single interface for binary field signals.
Q: How many input channels are available?
A: The PDIO pack supports up to 24 contact input channels.
Q: How many relay outputs does it provide?
A: It supports up to 12 relay output command channels.
Q: Which terminal boards are compatible with IS220PDIOH1A?
A: GE documentation identifies IS200TDBSH2A and IS200TDBTH2A as compatible terminal boards.
Q: Can it be used in a TMR configuration?
A: Yes. The PDIO architecture supports both simplex and TMR applications when paired with the appropriate terminal-board configuration.
Q: What power supply does the module require?
A: The specified nominal supply is 28 V DC, with an operating range of approximately 27.4–28.6 V DC and a maximum current of 0.81 A.
Q: Is IS220PDIOH1A interchangeable with IS220PDIOH1B?
A: They are related PDIO variants, but they should not be treated as automatically interchangeable. Processor-board and software-version compatibility should be verified before replacement.
⭐ Recommended GE Models
- IS220PDIAH1A — Mark VIe Discrete Input Module
- IS220PDOAH1A — Mark VIe Discrete Output Module
- IS220PCLAH1A — Mark VIe Core Analog Module
- IS220PTURH1B — Mark VIe Turbine Control Module
- IS220PAICH1A — Mark VIe Analog Input Module
- IS220PPRFH1A — Mark VIe PROFIBUS Master Gateway Module
- IS220PCNOH1A — Mark VIe CANopen Master Gateway Module
- IS220PSCAH1A — Mark VIe Serial Communication Module
- IS220PSCHH1A — Mark VIe Specialized Serial Communication Module
- IS220PSVOH1A — Mark VIe Servo Control Module
- IS220PPRAH1A — Mark VIe Emergency Turbine Protection Module
- IS220PRTDH1A — Mark VIe RTD Input Module
- IS220PVIBH1A — Mark VIe Vibration Monitor Module
- IS220PTCCH1A — Mark VIe Thermocouple Input Module
- IS220PGENH1A — Mark VIe Generator Interface Module
