Bihl+Wiedemann BWU1574 AS-I Counter Module 2-Channel Input

BWU1574 is a two-input AS‑i counter module from Bihl+Wiedemann that counts pulses on two independent channels over the AS‑i bus. It is designed for DIN‑rail mounting in industrial automation and comes in an IP65 enclosure measuring 90 mm (L) × 80 mm (W) × 43 mm (H). The module is powered via the AS‑i network with a sensor supply of 30 V DC and up to 200 mA operating current, supporting a maximum counting rate of 2.2 kHz. It provides a 16‑bit signed count range of -32768 to 32767 and LEDs for Channel 1, Channel 2, PWR (green) and FAULT (red) to indicate state and communication health. The BWU1574 uses AS‑i profile 7.3, with an article number of 172451 and identification codes: ID code 3 hex and ID2 code C hex, alongside an IO code of 7 hex. This module is suited for applications requiring reliable dual-channel pulse counting from encoders or digital sensors within AS‑i networks, supporting straightforward integration into machinery monitoring and process control systems.