The VMIVME-3122-210 is a high-performance 16-bit analog-to-digital conversion (ADC) card based on the VMEbus architecture, launched by GE Fanuc Embedded Systems. Specifically designed for scenarios including industrial automation, process control, laboratory instrumentation, data acquisition and embedded systems, this product features multi-channel configuration, flexible triggering and scanning modes, high-precision conversion performance, and robust hardware protection design. It can accurately capture a wide range of analog signals and convert them into digital signals, while supporting multi-card synchronization and high-speed VMEbus data interaction. It is thus an ideal solution for various demanding signal acquisition applications.
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Technical Specifications
Conversion Performance
Resolution: 16-bit, no missing codes, ensuring the fineness and integrity of signal conversion.
Conversion Rate: As a high-performance variant, the maximum conversion rate reaches 100 kSPS (kilosamples per second). The channel sampling rate is up to 100 kSPS (shared based on the number of scanning channels, with a minimum of 1 channel).
Accuracy Specifications: Maximum error is only ±0.005% of reading ±0.005% of full scale ±100μV. The temperature drift is as low as ±10 PPM (ADC reading) ±7.5 PPM (ADC full scale) ±2.5μV/°C, which ensures measurement stability in a wide temperature range.
Input Configuration
Number of Channels: According to the model code "210", the B field "1" corresponds to a 32-channel high-performance configuration, supporting differential or single-ended input (determined by the C field input options).
Input Range: Jumper-selectable ranges include ±2.5V, ±5V, ±10V, 0~+5V, 0~+10V, suitable for analog signals of different amplitudes.
Gain Control: Software-configurable via a Programmable Gain Amplifier (PGA), supporting global x1 or x10 gain, and gain parameters can also be assigned individually to each channel.
Input Protection: Equipped with overvoltage protection, capable of withstanding continuous overvoltage of ±35V and transient overvoltage of ±80V (for up to 1 second). The minimum input impedance is 5MΩ (with 50pF in parallel), and the maximum input bias current is 40nA, effectively reducing the impact on the measured signal.
Filter Options: The A field "2" in the model code corresponds to a 50Hz (-3dB) low-pass filter, which can effectively suppress high-frequency noise with a filter cutoff frequency tolerance of ±25%. Without filtering, the input bandwidth of the high-performance variant can reach 40kHz (20Vp-p).
Operating Modes & Functional Features
Trigger Modes
Software Trigger: Initiates the selected scanning mode by writing to the software trigger address.
External Trigger: Receives external TTL trigger signals via the P2 connector, which can be used for multi-card synchronization (supporting up to 15 cards in parallel).
Interval Timer Trigger: Automatically starts scanning at user-programmed time intervals, with a timing range of 305μs to 687 seconds.
Scanning Modes
Autoscan: The default mode that sequentially and continuously scans all activated channels.
Single Scan: Completes one full scan of all selected channels upon triggering, then stops and waits for the next trigger signal.
Random Access: Allows selection of a single channel for digitization and data storage after triggering.
Data Storage & Transmission
Equipped with a 1024-word × 16-bit dual-port data buffer, supporting programmable scan block sizes of 1, 8, 16, 32, or 64 channels. The buffer enables real-time data access via the VMEbus during the scanning process for retrieving the latest measurement results.
Data encoding is software-selectable, including two formats: two’s complement and offset binary.
VMEbus interrupt functionality is supported. Interrupt requests can be generated when a buffer scan is completed, mid-scan, or after a specified number of samples (1 to 65535) have been acquired. The interrupt vector is controlled via the interrupt vector register.
Compatible with A32/A24/A16 address spaces, supporting supervisor/privileged and non-privileged access modes. Complies with ANSI/IEEE STD 1014-1987, IEC 821, and 297 VMEbus specifications.
Physical & Environmental Specifications
Dimensions: 6U (4HP) single-slot Eurocard standard form factor, with a height of 233.4mm, depth of 160mm, and thickness of 20.3mm. Maximum weight is 700g, ensuring compatibility with standard VMEbus chassis.
Power Requirements: Powered by +5VDC, with a maximum current draw of 7.0A. Forced-air cooling is mandatory.
Operating Environment: Operating temperature ranges from 0°C to +65°C; storage temperature ranges from -40°C to +85°C. Operating altitude: 0 to 3000m;
storage altitude: 0 to 12000m. Relative humidity: 0% to 80% (non-condensing).
Connectors: As indicated by the "1" in the C field of the model code, it is configured with a 96-pin non-latching connector (for single-ended analog inputs). Recommended mating components include AMP 925486-1 docking connectors and AMP 530151-6 crimp contacts. P3 and P4 are I/O connectors, supporting 64-pin or 96-pin interface configurations.
Compatibility & Application Scenarios
Compatible Components
It can be paired with GE Fanuc series signal conditioning boards to build a complete data acquisition system:
VMIVME-3417A: 16-channel isolated signal conditioning board, supporting an input range of ±5mV~±10V, with optional current loop termination and low-pass filter.
VMIVME-3418: 8-channel isolated signal conditioning board for strain gauges and RTDs, suitable for sensor signal acquisition.
VMIVME-3419: 32-channel programmable gain signal conditioning board with built-in Built-In Test (BIT) functionality.
Typical Applications
Industrial Automation: Factory equipment condition monitoring, production line process parameter acquisition.
Process Control: Analog signal conversion and feedback control of pressure, temperature, flow rate, etc., in chemical, energy and other industries.
Laboratory Instrumentation: High-precision signal measurement and data recording in scientific research experiments.
Embedded Systems: Embedded data acquisition modules in military, aerospace and other fields.
Data Acquisition: Various scenarios requiring conversion of analog signals into digital signals for analysis and processing.
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