- **Four Independent 32‑bit Counters:** Each channel supports up/down counting with 32‑bit resolution (maximum count FFFFFFFFh). - **High‑Speed Pulse Input:** Accepts LVTTL‑level signals up to 10 MHz (50 % duty cycle). - **Two‑Phase and Single‑Phase Operation:** Supports two‑phase (A/B/Z), single‑phase, and single‑phase with gate control modes. - **Non‑Isolated LVTTL Input:** Direct connection to TTL/LVTTL devices such as encoders and linear scales. - **Digital Filter:** Adjustable per channel (0.1 µs – 1.6384 ms) to suppress noise and chattering. - **Programmable Timer:** 1 ms – 6553 ms (1 ms increments) for timing and sampling control. - **Bus Master Transfer (DMA):** Enables high‑speed data transfer between board and PC memory without CPU load; up to 80 MB/s (max 133 MB/s). - **Interrupt Generation:** One interrupt with multiple factors (count match, count error, sampling factors, carry/borrow, timer). - **Control I/O:** Four LVTTL control inputs and four LVTTL control outputs per board. - **Test Pulse Output:** 100 kHz fixed frequency for verification and diagnostics. - **Sampling Functions:** Internal/external sampling start/stop triggers and external clock input up to 10 MHz. - **Compatibility:** Connector pin assignment compatible with CNT32‑4MT(LPCI) and CNT32‑4MT(CB). - **Low Profile Design:** Fits compact systems; includes standard‑height bracket for full‑size PCIe slots. - **Optional Differential Input Conversion:** Convertible to differential input using optional terminal CTP‑4D and cable CNT‑68M/50M. - **Software Support:** Includes API‑PAC(W32) driver library for Windows; compatible with Visual C++, Visual Basic, Delphi, C# .NET, etc. - **LabVIEW Support:** VI‑DAQ library available for National Instruments LabVIEW integration.

Manufacturer: Contec

Category: Counter/Timer PCIe

- **Eight Independent 32‑bit Counters:** Provides 8 channels of 32‑bit up/down counting, each capable of two‑phase (A/B/Z) or single‑phase counting with gate control. - **High‑Speed Counting:** Supports input frequencies up to **10 MHz** (duty cycle 50%) for both TTL and differential inputs, enabling accurate high‑speed pulse measurement. - **Two‑Phase Signal Support:** Compatible with incremental rotary encoders, linear gauges, and other pulse‑output sensors requiring A/B/Z phase counting. - **Bus Master Data Transfer:** Incorporates a **Bus Master Transfer** function that allows large sampling data to be transferred directly to PC memory without CPU overhead, ensuring high throughput and low latency. - **Synchronous Control Capability:** Equipped with **Synchronous Control Connectors (SCC)** that enable synchronized operation of up to **16 boards** simultaneously, ideal for multi‑axis or multi‑sensor systems. - **Differential Input Disconnection Detection:** Automatically detects signal disconnection during differential input operation and issues an error alarm (status, interrupt, or external output). - **Digital Filtering:** Built‑in digital filter prevents false counts caused by noise or contact chattering, ensuring stable and accurate counting. - **Interrupt Functionality:** Supports one interrupt per board with multiple trigger factors: count match, count error, sampling factors, SCC error, carry/borrow, and timer events. - **Programmable Timer:** Integrated timer selectable from **1 ms to 6553 ms** in 1 ms increments for time‑based counting or sampling control. - **Surge Protection:** Input interface includes Zener diode protection to prevent damage from voltage surges or transient currents. - **Software Support:** Compatible with **Windows** and **Linux** via CONTEC’s API‑TOOL driver suite; also supports **LabVIEW** through the VI‑DAQ library. - **RoHS Compliant:** Environmentally friendly design meeting RoHS directives for hazardous substance reduction.

Manufacturer: Contec

Category: Counter/Timer PCIe