GE VMIVME-2536 Digital Input/Output Board
The VMIVME-2536 is a high-density digital input/output (I/O) module designed for rugged, real-time embedded systems, providing reliable signal processing and control capabilities in harsh environments. It integrates robust isolation and flexible configuration to meet the demands of critical industrial and mission-critical applications.
Detailed content
Technical Specifications:
- I/O Channels: 32 digital inputs and 32 digital outputs, independently configurable for diverse signal requirements.
- Input Characteristics:
- Voltage range: 24V DC (nominal), with overvoltage protection up to 60V DC.
- Input current: 3mA typical at 24V; compatible with dry contacts and solid-state switches.
- Response time: ≤1ms for input state changes, ensuring rapid signal detection.
- Output Characteristics:
- Voltage range: 24V DC (nominal), with maximum current per channel: 500mA (sustained), 1A peak (100ms).
- Short-circuit protection: Automatic current limiting with thermal shutdown to prevent damage during faults.
- Output type: Open-collector with external pull-up support, enabling direct control of relays, solenoids, and indicators.
- Isolation: 2500V DC galvanic isolation between I/O signals and the VME bus, reducing noise and protecting sensitive components from ground loops.
- Bus Interface: VME64 compatible (32-bit address/data bus, 40MHz clock), supporting standard VMEbus protocols for seamless integration with host controllers.
- Power: Requires +5V DC (2.5A max) and +24V DC (1.5A max) inputs; typical power consumption ≤15W under full load.
- Environmental:
- Operating temperature: -40°C to 85°C (extended industrial range).
- Mechanical: Withstands shock (50g, 11ms half-sine) and vibration (10g, 10–2000Hz).
- Compliance: Meets EMI/EMC standards (EN 61000-6-2/3) and safety certifications (UL 60950).
Functional Features:
- Software Configurability: Inputs and outputs can be individually mapped via software, with programmable edge detection (rising/falling) for input interrupts, enabling custom trigger logic without hardware modifications.
- Diagnostics: Onboard LED indicators for power, bus activity, and channel status; register-based fault reporting (overcurrent, overvoltage) allows remote monitoring of module health.
- Real-Time Performance: Direct memory access (DMA) support reduces CPU overhead, ensuring deterministic response times for time-critical control loops.
- Redundancy Support: Compatible with hot-swap backplanes, allowing module replacement without system shutdown in redundant configurations.
- OS Compatibility: Drivers available for VxWorks, Linux, and QNX, facilitating integration with real-time operating systems for low-latency control applications.
- Watchdog Timer: Programmable 1–255s watchdog with reset capability, preventing system lockups by rebooting unresponsive modules.
Application Scenarios:
- Industrial Automation: Controls and monitors assembly lines, conveyor systems, and robotic cells, managing sensors (proximity, limit switches) and actuators (motors, valves) in smart factories.
- Aerospace and Defense: Integrates with avionics test rigs and ground control systems, processing discrete signals from aircraft components (landing gear, flaps) and triggering safety interlocks.
- Energy Sector: Monitors and controls circuit breakers, pumps, and valves in power distribution plants and renewable energy facilities (solar, wind), ensuring reliable grid operation.
- Transportation: Manages signaling systems in railways and metro networks, processing track occupancy sensors and activating warning lights or barriers.
- Marine Systems: Controls onboard equipment (thrusters, navigation lights) on ships and offshore platforms, with rugged design resisting salt spray and extreme temperature fluctuations.
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