Industrial 45C997 Analog Output Module

Reliance Electric 45C997 is a four-channel analog voltage output module for Shark XL PLCs, delivering four independent 0–10 V DC outputs with 8‑bit resolution and a 1 ms full‑conversion time, enabling rapid updates to analog control signals. The module’s outputs are not isolated from one another, and it requires loads of 10 kΩ or higher per channel to maintain the specified performance. This UL-listed device is part of the Shark XL legacy family, reflecting Reliance’s older line of I/O modules, and is typically sourced through refurbishers or surplus distributors since the original production has ended. In practical terms, the 45C997 serves as a direct PLC-to-analog output interface, converting digital control signals into standard 0–10 V control voltages for analog actuators or process equipment within established industrial automation schemes.