GE VMIVME-3112
GE VMIVME-3112

GE VMIVME-3112 | VMEbus Series 12-Bit Analog-to-Digital Converter Board

  • Brand: GE (General Electric)
  • Model: VMIVME-3112 (Variant: VMIVME-3112-000)
  • Product Type: 12-Bit Analog-to-Digital Converter (ADC) Board
  • Series: VMEbus (Industrial Automation)
  • Core Function: Provides high-resolution analog-to-digital conversion for VMEbus-based industrial control systems, enabling precise digitization of analog signals from field devices (e.g., temperature transmitters, pressure sensors) for processing by the main controller.
  • Key Specs:
    • Resolution: 12 bits
    • Input Channels: 64 (single-ended or differential)
    • Bus Compatibility: VMEbus (conforms to VME64 standard)
    • Conversion Rate: Up to 100 kHz (programmable)
    • Operating Temperature: -40°C to +85°C (industrial-grade ruggedness)
    • Certifications: CE, UL (inferred from GE industrial product standards)
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Manufacturer:
Part number: GE VMIVME-3112
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Description

VMIVME-3112: Product Overview​
The GE VMIVME-3112​ is a 12-bit analog-to-digital converter (ADC) board designed for integration into VMEbus-based industrial automation systems. As a critical component of the VME ecosystem, it enables precise digitization of analog signals from field devices (e.g., thermocouples, RTDs, pressure transmitters) and communicates processed digital data to the main controller, supporting real-time control and monitoring in harsh industrial environments.
Role in Automation Systems:
Positioned as an “analog signal digitization interface” in VMEbus architectures, the VMIVME-3112 performs two primary functions:
  1. Analog Signal Acquisition: Receives analog signals from field devices (e.g., a temperature transmitter outputting 4–20 mA) and converts them into high-resolution digital data.
  2. Digital Data Transmission: Transmits the converted digital data to the main controller via the VMEbus, enabling real-time analysis and control (e.g., adjusting fuel flow in a turbine based on temperature readings).
Core Functionality:
  • High-Resolution Conversion: With 12-bit resolution, the board achieves a precision of 0.025% (full-scale), ensuring accurate representation of analog signals—critical for maintaining turbine stability and complying with utility regulations.
  • Flexible Input Configuration: Supports 64 single-ended or differential input channels, configurable via hardware jumpers to accommodate diverse field device requirements (e.g., 4–20 mA current loops, 0–10 V DC voltage signals).
  • Programmable Conversion Rate: Allows adjustment of the conversion rate (up to 100 kHz) via software, balancing speed and precision for different applications (e.g., fast-changing signals like vibration sensors vs. slow-changing signals like temperature).
  • VMEbus Compatibility: Conforms to the VME64 standard, ensuring seamless integration with VMEbus-based controllers (e.g., GE Fanuc 90-30 series) and backplanes.
Platform Benefits (VMEbus Series):
The VMIVME-3112 leverages GE’s VMEbus platform, which is renowned for:
  • Reliability: Industrial-grade components and a rugged design ensure 24/7 operation in harsh environments (e.g., high temperature, vibration).
  • Scalability: Supports expansion with additional ADC boards to accommodate growing system demands (e.g., adding more sensors to a turbine control system).
  • Integration: Seamlessly integrates with VMEbus-based controllers and other I/O modules, reducing setup time and effort.

    GE VMIVME-3112

    GE VMIVME-3112

Technical Specifications​
  • Model Number: VMIVME-3112 (Variant: VMIVME-3112-000)
  • Manufacturer: GE (General Electric)
  • Product Type: 12-Bit Analog-to-Digital Converter (ADC) Board
  • Series: VMEbus
  • Resolution: 12 bits
  • Input Channels: 64 (single-ended or differential)
  • Input Signal Range: 0–10 V DC, 4–20 mA (configurable via jumpers)
  • Conversion Rate: Up to 100 kHz (programmable)
  • Bus Standard: VME64 (conforms to IEEE 1014)
  • Operating Temperature: -40°C to +85°C (-40°F to 185°F)
  • Storage Temperature: -40°C to +85°C (-40°F to 185°F)
  • Humidity: 5–95% non-condensing
  • Dimensions: 160 mm × 100 mm × 20 mm (6.3 in × 3.9 in × 0.8 in) (inferred from similar VMEbus products)
  • Weight: 0.2 kg (0.44 lbs) (inferred from similar VMEbus products)
  • Certifications: CE, UL (inferred from GE industrial product standards)
Core Features & Customer Value​
1. High-Precision Signal Digitization:
The VMIVME-3112’s 12-bit resolution ensures accurate conversion of analog signals, which is critical for maintaining turbine stability—even minor errors in signal digitization can lead to incorrect control decisions (e.g., misadjusting fuel flow, resulting in inefficient combustion).
2. Flexible Input Configuration:
With 64 input channels (single-ended or differential) and configurable signal ranges (0–10 V DC, 4–20 mA), the board accommodates a wide range of field devices, reducing the need for additional signal conditioning hardware. This flexibility saves time and money during installation.
3. Rugged Industrial Design:
The board’s operating temperature range (-40°C to +85°C) and compact form factor make it suitable for harsh industrial environments. Its DIN rail mounting option simplifies installation in crowded control cabinets, reducing setup time and effort.
4. Easy Integration:
VMEbus compatibility ensures seamless integration with existing VMEbus-based systems, minimizing downtime and effort during upgrades. This is invaluable for facilities with legacy VMEbus installations, allowing them to enhance system capabilities without replacing entire architectures.
Typical Applications​
The GE VMIVME-3112​ is widely used in industrial automation systems for:
  1. Power Generation:
    • Digitizes analog signals from gas/steam turbines (e.g., temperature, pressure, blade position) for real-time control, improving efficiency and reliability.
  2. Manufacturing:
    • Converts analog signals from sensors (e.g., temperature, flow) in manufacturing processes, enabling precise control of equipment (e.g., motors, pumps).
  3. Chemical Processing:
    • Processes analog signals from pressure transmitters and temperature sensors in chemical plants, ensuring safe and efficient operation.

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