Keysight Technologies PLC I/O Module

The Keysight L4450A has 64 bi-directional lines configured as eight 8-bit channels. The memory is useful for simulating and capturing digital patterns up to 10 MHz. It provides configurable handshaking protocols for a wide variety of applications.In addition, the two counter/totalizer channels can be used to count events, frequency, period, duty cycle, totalizer, and pulse width. Standard 78-pin Dsub connectors allow for use with standard cables, terminal blocks, or mass interconnect solutions.

Fully-featured graphical web interface
64 bi-directional digital I/O bits with programmable polarity
Variable thresholds from 0V to 5V
Source/sink current up to 24mA
128K pattern memory
2 10 MHz counter/totalizer channels
20 MHz divide by n clock, software drivers for most common programming environments