الوصف
The GE IS200ADIIH1A is a specialized communication and interface module, not a general Analog Input/Output (I/O) board. Its primary function is to serve as the Auxiliary Drive to ISBus Interface Board within GE’s industrial control architecture.1
It is a critical component for integrating specialized drive systems into the central controller, primarily within the GE Mark VI Speedtronic Turbine Control System and its associated drive products, such as the AcDc2000 drives.2
Since this is a specialized legacy component, I will use a generic link to a GE Automation Solutions page as a placeholder. If you can provide the correct link, I will immediately update the response.
Product Description
The GE IS200ADIIH1A is a Printed Circuit Board (PCB) component manufactured by General Electric for their high-reliability industrial control systems.3 Its core function is to facilitate high-speed, real-time data communication between an auxiliary drive (like an AcDc2000 drive) and the main ISBus (Industrial System Bus) of the Mark VI controller.4
The board’s Dual Channel/Dual Port capability refers to its configuration for the ISBus network, which operates on a daisy-chain protocol.5 The module has two RJ45 connectors (6$\text{P2}$ and 7$\text{P3}$) that allow it to receive the data stream from the previous device (8$\text{RX/IN}$) and transmit the modified stream to the next device (9$\text{TX/OUT}$) on the bus.10 This mechanism is crucial for ensuring low-latency, deterministic communication that is required for precise control of motor drives in turbine applications.
The IS200ADIIH1A (Placeholder Link: GE Automation Solutions Product Page) is necessary for the drive to receive its command bits and references from the master controller and substitute its own feedback data (e.g., speed, torque, status) back into the data stream. It is typically installed in the carrier of the drive itself.11 The IS200ADIIH1A (Placeholder Link: GE Automation Solutions Product Page) has no fuses or hardware jumpers, simplifying its assembly and focusing on communication integrity.
Product Parameters
As a dedicated communication interface board, its key technical specifications include:
- Manufacturer/Series: General Electric, Mark VI Speedtronic / Innovation Series Drives.12
- Product Type: Auxiliary Drive to ISBus Interface Board (ADII).13
- Function: Real-time communication interface between an auxiliary drive and the main ISBus.14
- Requisite Drive Board: Requires the presence of the LDCC (Local Drive Control Card) board for configuration and operation.15
- Communication Protocol: Proprietary ISBus protocol.16
- Network Ports: Two 17$\text{RJ45}$ connectors (18$\text{P2}$ and 19$\text{P3}$) for daisy-chain topology.20
- Frame Rate: The ISBus frame rate is programmable (e.g., 21$1 \text{ ms}$, 22$2 \text{ ms}$, 23$4 \text{ ms}$, or 24$8 \text{ ms}$).25
- Local Interface: Includes six 26$\text{LED}$ indicators for visual diagnostics and seven 27$\text{TP}$ test points for troubleshooting.28
- Redundancy: Supports dual-port configuration for network integrity within a simplex system.29
Advantages and Features
- Deterministic Control: Enables communication at programmable frame rates (30$\text{ms}$ level), guaranteeing the real-time data transfer necessary for highly responsive motor/drive control.31
- Integrated Bypass Function: Eliminates the need for a separate bypass module to maintain network connectivity when the drive is powered off.32
- Seamless Integration: Specifically designed for the GE Mark VI control system, ensuring guaranteed compatibility with the central controller and AcDc2000 drives.
- System Scalability: The ISBus architecture supports a single controller (Drop 0) and up to 31 nodes, allowing the system to scale auxiliary drive and I/O integration.33
Application Areas and Use Cases
The GE IS200ADIIH1A is indispensable in:
- Turbine Fuel Control: Interfacing turbine auxiliary drives used for precise positioning of fuel valves (e.g., gas control valves).
- Auxiliary Drives: Control of high-speed drives for pumps, compressors, or other Balance of Plant (BOP) equipment where the AcDc2000 drive platform is used.
- Industrial Automation: Any application within the Mark VI ecosystem that requires low-latency, high-speed communication to a dedicated motor drive.
Selection Advice
You should select the GE IS200ADIIH1A only when:
- You are performing maintenance, repair, or planned replacement of the ISBus communication board within a GE AcDc2000 drive that is controlled by a Mark VI system.
- The existing system requires the proprietary ISBus protocol for deterministic, high-speed communication between the drive and the master controller.
- The AcDc2000 drive being interfaced contains the LDCC board, as the IS200ADIIH1A is dependent on the LDCC for configuration.34
Important Considerations
- LDCC Dependency: The board is unusable without the LDCC (Local Drive Control Card) present in the drive, as configuration is performed via the LDCC’s keypad or the GE Control System Toolbox.35
- Legacy Status: This component is associated with the legacy Mark VI and Innovation Series platforms and may be obsolete. Secure a reliable source for spares and verify its current lifecycle status.
- Daisy-Chain Integrity: Ensure the $\text{ISBus}$ cabling between the $\text{RJ45}$ ports ($\text{P2}$ and $\text{P3}$) is correctly connected in the daisy-chain topology, as network interruption will affect the entire bus.




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