VMIVME2540-300  24通道智能计数器/控制器

VMIVME2540-000

• Event counting – up to 4 giga events
• Frequency measurement —1.16 x 10-3 Hz to 2.5 MHz
• Period/pulse-width measurement—400 ns to 8.5899 x 106 s (32-bit floating point), 400 ns to 858 s (32-bit unsigned integer)
• Square wave/pulse train generation – 0.0076 Hz to 2.5 MHz
• Timer/periodic VMEbus interrupter – 0.0076 to 1,000 Hz
• Quadrature position measurement – sin/cos up to 1 MHz, 32-bit counters, limit/modulo checking
• Integer period/pulse-width measurement 16- and 32-bit, discrete or continuous; low data transport lags
• Programmed output – up to 24 discrete outputs
• Pulse sequence mode – train of N pulses with programmable duty cycle
• Quadrature position control outputs – ±1/4 wave control resolution; up to 1.25 MHz step rate and ±32767 steps per command
• Integer QPM group acquisition – captures two integer QPM measurements simultaneously
• Event-triggered timer delay – generates VMEbus interrupt up to 131.1 seconds after event edge input; retriggerable
• 24 control/measurement interfaces: 24 clocks, 24 gates, 24 outputs
• RS-422 differential interface with support for single-ended TTL inputs
• Options allow configurations of 4, 8, 16, and 24 interfaces
• On-board 15 MHz 68HC000 CPU
• A32/A24/D32/D16/D8 (EO) VME slave interface, 64 Kbyte VMEbus memory window
• Data exchange interface: ANSI/IEEE standard 754-1985 for 32-bit floating-point arithmetic
• Continuous measurement modes
• VMEbus compatible ANSI/IEEE 1014-1987 IEC 821 and 297 APPLICATIONS
• Rotational shaft instrumentation: angular position, velocity, acceleration
• Automotive industry testing: brakes, transmissions, tachometer
• Robotics
• Telescope/observatory
• Medical/laboratory instruments
• Linear position measurement: distance, velocity, acceleration
• Elevators
• Overhead cranes
• X-Y tables
• Machine tools
• Automatic storage retrieval

Once programmed by the VMEbus host, the VMIVME-2540 ICC performs these functions automatically. The on-board CPU maintains data structures in shared local memory for buffering measurements and queueing control commands. Measurement functions are also supported by a Continuous Measurement Mode in which measurements are made repeatedly without host CPU involvement. I/O connections are routed through high-density connectors located on the front panel with support for differential and single-ended signal levels. The user data exchange interface for measurement and generation modes complies with ANSI/IEEE Standard 754-1985 for 32-bit floating-point arithmetic. Integer modes operate with two’s complement signed arithmetic and with unsigned arithmetic.