GE VMIVME-2128

Description

Product Description

The GE VMIVME-2128, detailed further here, is a high-performance 16-channel analog input board designed for the VMEbus industrial computing platform. This module serves as a critical data acquisition interface in sophisticated automation systems, particularly those used in large-scale process control, test & measurement, and military/aerospace applications. The primary function of the GE VMIVME-2128 is to convert real-world analog voltage or current signals from field transmitters (e.g., temperature, pressure, flow) into high-resolution digital data that can be processed by the system’s main CPU. In a typical architecture, this VME board would reside in a ruggedized industrial chassis running a real-time operating system (like VxWorks) or specialized control software, functioning as a high-speed, high-density I/O subsystem. For system integrators maintaining legacy but critical control systems based on the VME standard, the VMIVME-2128 represents a vital component for preserving system functionality and data integrity.

Product Parameters

• Manufacturer: GE (General Electric), part of the VMIC (VME Microsystems International Corporation) product line.

• Form Factor: 6U VMEbus Board.

• Model: VMIVME-2128

• Input Channels: 16 single-ended or 8 differential analog input channels.

• Input Type: Software-selectable for voltage (±10V, ±5V, 0-10V) or current (4-20 mA, 0-20 mA) signals.

• Resolution: 16-bit analog-to-digital converter (ADC), providing high precision.

• Sampling Rate: Capable of high-speed scanning, with aggregate throughput up to 100,000 samples per second.

• Input Impedance: High input impedance (e.g., >1 MOhm for voltage inputs) to minimize signal loading.

• Isolation: Typically features channel-to-channel and channel-to-bus isolation for noise immunity and protection.

• Connector: Uses a high-density front panel connector (e.g., D-Sub) for field wiring.

• Addressing: Configured via on-board switches or software for its base address and interrupt settings on the VMEbus.

Advantages and Features

• High Density and Precision: Combines 16 channels of high-resolution (16-bit) input on a single slot, offering excellent space efficiency and measurement accuracy for complex systems.

• Flexible Input Configuration: The software-selectable voltage/current ranges on a per-channel basis provide great versatility for interfacing with a wide array of sensors without needing external signal conditioners.

• High-Speed Data Acquisition: The fast sampling rate allows for capturing transient events and monitoring dynamic processes that are beyond the capability of standard PLC analog input modules.

• Robust Industrial Design: Built to the rigorous VME standard with quality components, designed for reliable operation in industrial environments with vibration, temperature variation, and electrical noise.

• Deterministic Performance: When used in a real-time VME system, it offers predictable and deterministic data acquisition timing, which is critical for closed-loop control applications.

Application Cases in Application Fields

• Large-Scale Process Simulation & Testing: Used in hardware-in-the-loop (HIL) test racks for aerospace or automotive systems, where the GE VMIVME-2128 acquires data from numerous simulated sensor outputs to test control units under realistic conditions.

• Power Generation Turbine Control: Employed in specialized turbine control systems (older Mark VI or custom systems) to monitor a large array of critical temperatures, pressures, and vibration signals with high speed and precision.

• Industrial Research & Development: Serves as the primary data acquisition front-end in test cells for engines, pumps, and compressors, capturing high-fidelity performance data.

VMIVME-2128

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