The National Instruments PXIe-6612 is an advanced PXI Counter/Timer Module designed for high-performance measurements and control applications. Featuring eight channels, this module delivers versatile capabilities including encoder position estimation, event counting, pulse width analysis, periodic measurement, pulse generation, and frequency measurement. The PXIe-6612 operates with an input voltage of 5 V and provides extensive digital input measurement options, allowing for both hardware-timed and software-timed acquisitions. Hardware-timed acquisitions leverage a digital hardware signal to determine the acquisition rate, enabling shorter sampling intervals with deterministic timing and hardware triggering. In contrast, software-timed acquisitions are managed by the host software, suited for individual data sampling.

Equipped with 40 Programmable Function Interface (PFI) signals, the PXIe-6612 facilitates complex timing and digital I/O configurations, organized into a 32-bit Port 0 and an 8-bit Port 1. Each terminal for digital I/O is designated as Px.y, where x denotes the port number and y indicates the line number, such as P1.3 for Port 1, Line 3. Conversely, PFI lines are referred to as PFI x, enabling dual-functionality for the same physical pins depending on their application. The module also integrates additional input capacitance (CI) on select lines, offering filtering and slew-rate control advantages, although this performance feature restricts the maximum input frequency.

Weighing 175 grams, the PXIe-6612 is rated for operation in temperatures ranging from 0 to 55 °C and can be stored within a temperature range of -40 to 71 °C. The module is compatible with popular software environments including NI-DAQmx, LabVIEW, and LabWindows/CVI. The PXIe-6612 is backed by a three-year warranty, and user manuals are readily available for download to assist with setup and maintenance. For pricing details, prospective customers are encouraged to contact a sales representative.