24-Channel Intelligent Counter/Controller
VMIVME-2540 24-Channel Intelligent Counter/Controller
VMIVME-2540 24-Channel Intelligent Counter/Controller
implement the various measurement and control functions.The on-board 68HC000 CPU configures and manages each STC interface directly, allowing the VMEbus host interface to be elevated above the hardware level. Ordering options allow the VMIVME-2540 to be factory configured with 1,2, 4, or 6 System Timing Controllers. The inputs and outputs of the System Timing Controllers are buffered at the front panel connectors with RS-422 line receivers and line drivers. TTL input signal compatibility is supported by connecting the inverting input of the RS-422 line receiver to an on-board 1.4 V reference through the front panel, and the TTL signal to the noninverting input.
FUNCTIONAL SPECIFICATIONS
System Time Base: 5 MHz
Accuracy/Stability: ±0.005 percent
EVENT COUNTING
Input Frequency Range: Up to 2.5 MHz
Count Range Returned: Up to 216 (word mode)
Up to 232 (long mode)
PERIOD/PULSE-WIDTH MEASUREMENT
Input Period Range/Accuracy
16-bit Counter: 131.07 s to 400 ns
131 s to 13.1 ms Accuracy: 0.015 percent
maximum
13.1 ms to 200 ns Accuracy: Percent Error =
100*(200 ns/Period)
16-bit Enhanced-Resolution Counter: 858.9 s to
800 ns
Requires two 16-bit counters
32-bit Integer Operations: Requires two 16-bit
counters for pulse-width operation
Requires three 16-bit counters for period measurement
operation
16-bit Prescaler Range: ÷2-65536 with 400 ns
resolution
VMIC single board computer board is a high performance computer board, widely used in various industrial automation, embedded system, data center and other fields. It has a high degree of integration and reliability, supports multiple processor and memory configurations, and can provide powerful computing power and data storage capabilities.
VMIC single board computer boards are usually pre-installed with high-performance processors and memory, which can meet the needs of various complex applications. At the same time, it also supports a variety of extension interfaces and communication protocols, which can be easily connected and communicated with other devices and systems.
VMIVME-2540 24-Channel Intelligent Counter/Controller
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