Key Features

Event counting: Up to 4 billion events

Frequency measurement: 1.16 × 10⁻³ Hz to 2.5 MHz

Period / pulse-width measurement:

32-bit floating-point (IEEE 754): 400 ns to 8.5899 × 10⁶ s

32-bit unsigned integer: 400 ns to 858 s

Square wave / pulse train generation: 0.0076 Hz to 2.5 MHz

Timer / periodic VMEbus interrupt generation: 0.0076 to 1000 Hz

Quadrature position measurement (QPM):

Sin/cos inputs up to 1 MHz

32-bit counters

Limit and modulo checking

Integer period / pulse-width measurement:

16-bit and 32-bit

Discrete or continuous modes

Low data transport latency

Programmed outputs: Up to 24 discrete outputs

Pulse sequence mode: Generates a train of N pulses with programmable duty cycle

Quadrature position control outputs:

Control resolution of ±1/4 wave

Step rates up to 1.25 MHz

±32,767 steps per command

Integer QPM group acquisition: Simultaneous capture of two integer QPM measurements

Event-triggered timer delay:

Generates a VMEbus interrupt up to 131.1 seconds after an event edge

Retriggerable operation

Control and measurement interfaces:

24 clocks

24 gates

24 outputs

Electrical interfaces:

Differential RS-422

Support for single-ended TTL inputs

Configurable interface counts: 4, 8, 16, or 24 interfaces

On-board processor: 15 MHz Motorola 68HC000 CPU

VMEbus slave interface:

Supports A32 / A24 / D32 / D16 / D8 (EO)

64 KB VMEbus memory window

Data exchange format: ANSI/IEEE 754-1985 (32-bit floating-point arithmetic)

Continuous measurement modes

VMEbus compliance: ANSI/IEEE 1014-1987, IEC 821, IEC 297

Applications

Rotating shaft instrumentation: angular position, velocity, acceleration

Automotive testing: braking systems, transmissions, tachometers

Robotics

Telescopes and observatories

Medical and laboratory instruments

Linear position measurement: distance, velocity, acceleration

Elevators

Overhead cranes

X–Y positioning tables

Machine tools

Automated storage and retrieval systems (AS/RS)

GE VMIVME-2540｜24-Channel Intelligent Counter/Controller｜