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From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
5 V, 4-Channel Counter/Timer Device—The PCI‑6601 performs encoder position measurements, event counting, period measurements, pulse-width measurements, pulse generation, pulse-train generation, and frequency measurement. It features four counter/timers, digital debouncing filters, and TTL/CMOS-compatible digital I/O. The PCI‑6601 can perform one high-speed DMA transfer.
Explore articles written by our support engineers to help you troubleshoot problems and complete common tasks.
Learn how to connect and configure your hardware to take your first measurement.