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GE VMIVME-2536

1. Core Architecture

  • Form Factor: 6U VMEbus single-slot Eurocard (233.4 mm × 160 mm × 20.3 mm) .
  • I/O Channels:
    • 32 optically isolated digital inputs (configurable as voltage/contact sensing).
    • 32 optically isolated digital outputs (open-collector, 300 mA sink current) .
  • Isolation:
    • System Isolation: 1,000V sustained to VME backplane; 3,500V transient for 1 second .
    • Channel-to-Channel Isolation: 500V sustained .
  • Power Requirements: +5VDC ±5% at 2.65A .

Detailed content

2. Electrical Characteristics

  • Input Specifications:
    • Voltage Ranges: Selectable per byte boundary: 5V, 12V, 24–28V, 48V, or 125V DC (voltage sensing only) .
    • Input Impedance: ≥10 MΩ .
    • Debounce: Programmable (0–16.384 ms) .
  • Output Specifications:
    • Max Output Voltage: 50V DC .
    • Leakage Current: ≤500 μA at 50V .
    • Pull-Up Resistors: Configurable via jumpers (external or VME +5V) .

3. Data Handling & Addressing

  • Data Transfer: 8/16/32-bit modes .
  • Addressing Schemes: A16 (short I/O) or A24 (standard) .
  • Control Registers:
    • CSR (Control/Status Register): Manages built-in test (BIT), debounce, and test modes .

Functional Features

1. Built-in Test (BIT)

  • Online/Offline Testing:
    • Inputs/outputs can be switched to test mode via CSR, enabling self-diagnosis without affecting field operations .
    • Test registers mirror input/output addresses for direct read/write validation .
  • Fault Tolerance: Automatic isolation during faults; watchdog timer support .

2. Optical Isolation & Safety

  • High-Noise Immunity: Optocouplers eliminate ground loops in industrial environments .
  • Compliance: CE Mark, RoHS, CISPR 22 EMC .

3. Configuration Flexibility

  • Byte-Level Customization: Input sensing mode (voltage/contact) and output pull-up voltage configurable per 8-channel group .
  • Contact Sensing: Requires user-installed SIP resistors; supports 5–125V DC .

4. Environmental Resilience

  • Operating Temperature: 0°C to +60°C (storage: -55°C to +85°C) .
  • Humidity Tolerance: 20–80% non-condensing .
  • MTBF: 463,909 hours (Bellcore standard) .

Application Scenarios

Domain Use Cases Key Capability Utilized
Industrial Automation PLC-based control in rolling mills, robotic assembly lines 32-channel I/O; 1ms debounce for sensor signals
Power Generation Turbine control systems (e.g., GE gas turbines) 1kV isolation; contact sensing for safety interlocks
Critical Infrastructure Nuclear plant monitoring, rail signaling BIT for fault detection; wide voltage input (5–125V)
Defense Systems Military simulators, avionics testing Optical isolation for EMI resilience; -40°C operation (industrial variants)

Technical Differentiation

Parameter VMIVME-2536 Typical Industrial I/O Boards
Isolation Voltage 1,000V sustained ≤250V
Debounce Precision Programmable (0–16.384 ms) Fixed or limited range
Channel Density 64 channels (32 in/32 out) ≤32 channels
Configuration Per-byte boundary settings Global channel grouping

Ordering & Variants

  • Model Suffix Decoding:
    • A = Input voltage range (e.g., 2 = 24–28V) .
    • C = CE compliance (0: Non-CE; 1: CE-compliant) .
  • Industrial Variants: Extended temperature range (-40°C to +85°C) available .

Integration Ecosystem

  • Software Support: VxWorks, QNX, Linux RT .
  • Compatible Hardware: GE VMIPMC-5579 I/O modules; VME64x/VME320 backplanes .

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