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Product Introduction
The GE IS220PIOAH1A is a high-performance discrete I/O module developed for the GE Mark VIe control system platform. It is specifically designed for interfacing with field devices that require digital input and output signal processing. The module serves as a critical component in turbine control, balance of plant systems, and industrial automation, where precise control and monitoring of discrete signals are essential.
It functions as a reliable interface between field wiring and the control system’s communication backbone. By combining input/output functionality with intelligent signal conditioning and diagnostics, the IS220PIOAH1A ensures stable performance in demanding environments, reducing downtime and enhancing operational efficiency.
Product Features and Advantages
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Dual I/O capability: Supports both input and output discrete signal processing in a single compact unit.
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Advanced diagnostics: Built-in diagnostics for open wire detection, blown fuse indication, and module health status.
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Hot-swappable: Enables replacement without shutting down the system, reducing maintenance impact.
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Integrated terminal board support: Easily mounts to associated terminal boards (e.g., TBIOA/TBIOB).
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High immunity to electrical noise: Designed for harsh industrial environments with high EMC protection.
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Firmware upgradeable: Allows in-place firmware upgrades for improved functionality and performance.
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Redundancy compatibility: Supports redundant configurations for high-availability systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | IS220PIOAH1A |
| Manufacturer | GE (General Electric) |
| I/O Type | Discrete Input and Output |
| Number of Channels | 16 inputs / 16 outputs |
| Output Type | Relay or Sourcing (depending on config) |
| Input Voltage Range | 24 VDC nominal |
| Output Voltage Range | 24 VDC, 125 VDC, or 120 VAC (via TB config) |
| Isolation | 2500 Vrms channel-to-ground |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5%–95% non-condensing |
| Weight | 0.8kg |
| Dimensions | 160 x 160 x 120mm |
| Mounting Type | Direct mount to terminal board (e.g., TBIOA) |
| Communication Interface | IONet (Ethernet-based, simplex or redundant) |
| LED Indicators | Yes – Input/Output state and status |
Applications
The IS220PIOAH1A module is widely used in a variety of industrial sectors:
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Gas and Steam Turbine Control Systems
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Power Generation Plants
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Process Automation Systems
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Water Treatment Facilities
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Industrial Manufacturing Lines
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Safety Interlock and Shutdown Systems
It provides robust control in systems requiring reliable signal acquisition and actuation of field-level devices such as solenoids, relays, proximity switches, limit switches, and contact closures.
Installation and Configuration
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Mount the module directly to a compatible terminal board (e.g., TBIOA or TBIOB).
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Connect the I/O wiring to the terminal board as per system diagrams.
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Connect the Ethernet cables to the module for IONet communication.
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Verify LED indicators for power and link status.
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Configure the module via the ToolboxST software within the Mark VIe control environment.
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Perform validation diagnostics to ensure all input and output channels are functioning properly.
10 FAQs (Non-AI Style)
Q1: What does the IS220PIOAH1A module do?
A1: It handles both digital input and output signals and links field devices with the Mark VIe control system.
Q2: Can this module be hot-swapped during live operation?
A2: Yes, it is designed to be hot-swappable, allowing replacement without shutting down the system.
Q3: What types of signals can the output channels handle?
A3: The outputs can handle 24 VDC, 125 VDC, or 120 VAC depending on how the terminal board is configured.
Q4: Is this module compatible with redundant control networks?
A4: Yes, it supports both simplex and redundant IONet communication setups.
Q5: How many discrete channels does the IS220PIOAH1A support?
A5: It supports 16 input and 16 output channels.
Q6: Does the module include diagnostic functions?
A6: Yes, it offers open wire detection, blown fuse indication, and module health reporting.
Q7: What software is used for configuration?
A7: The module is configured using GE’s ToolboxST software.
Q8: Is it suitable for outdoor or extreme temperature environments?
A8: It operates in a wide range from -30°C to +65°C, making it suitable for harsh industrial settings.
Q9: Can it be mounted independently without a terminal board?
A9: No, it requires a compatible terminal board for electrical interfacing and mounting.
Q10: What kind of maintenance is needed?
A10: Regular visual inspection, diagnostic checks, and firmware updates are recommended.
Related Models (Same Series or Functional Category)
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IS220PDIOH1A – Discrete I/O Pack with sourcing outputs
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IS220PPRFH1B – High-speed pulse rate feedback module
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IS220PRTDH1B – RTD input module for temperature monitoring
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IS220PAICH1A – Analog input module
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IS220PAOCH1A – Analog output module
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IS220PDOAH1A – Isolated discrete output module
Popular Models from the Same Brand (GE)
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| IS220PAICH1A | Analog Input Module | 127 × 104 × 41 | 0.48 |
| IS220PDOAH1A | Isolated Discrete Output Module | 127 × 104 × 41 | 0.49 |
| IS220PRTDH1B | RTD Temperature Input Module | 127 × 104 × 41 | 0.46 |
| IS220PAOCH1A | Analog Output Module | 127 × 104 × 41 | 0.48 |
| IS220PPRFH1B | Pulse Rate Feedback Module | 127 × 104 × 41 | 0.47 |
| IS220YDIAS1A | Digital Input Module (Simplex) | 127 × 104 × 41 | 0.45 |
