Xycom XVME-500/4

Technical Specifications

- Processor: 266 MHz PowerPC 750FX, 32-bit RISC core
- Memory
  - SDRAM: 128 MB, ECC-protected (expandable to 256 MB)
  - Flash: 8 MB NOR + 128 MB NAND for program and data storage
- Counter Channels: 16 × 32-bit up/down counters, 5 MHz maximum count rate
- Digital I/O
  - Inputs: 16, TTL/CMOS, 0–0.8 V low, 2–6.5 V high, 330 Ω impedance
  - Outputs: 16, TTL/CMOS, 24 mA sink/source

Tag：

Isolation: 500 V optical isolation on all I/O lines
Interrupts: 8 programmable VMEbus interrupt vectors
VMEbus Interface: A16/A24/A32, D16/D32, supports block transfers
Power Consumption: +5 V @ 1.2 A, +12 V @ 100 mA
Form Factor: 6U single-slot, 233 mm × 160 mm
Operating Temperature: –20 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Humidity: 5 % to 95 % RH non-condensing

Functional Features

Local Processing: PowerPC core executes PID loops, motion profiles, and event-logic without host intervention
Flexible Counting Modes
- Up, down, quadrature, frequency, period, and pulse-width measurement
Programmable Digital Filters: 0.1 μs to 65 ms noise rejection on each input
Hot-Swap Ready: Hot-insertion and removal supported under VME64x specification
Firmware Field-Update: Boot-loadable via VMEbus or RS-232 for feature upgrades
Front-Panel LEDs: Power, CPU status, activity on each counter, I/O states

Application Scenarios

Industrial Automation
High-speed packaging lines, multi-axis servo controllers, and robotic work-cell sequencing
Defense & Aerospace
Missile fin actuation testing, radar antenna positioning, and UAV ground-station data capture
Test & Measurement
Automated test equipment for encoder validation, frequency-response analysis, and stepper-motor characterization
Energy & Utilities
Turbine speed monitoring, generator phase-angle measurement, and substation breaker cycle counting

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