Allen-Bradley 1756-OF8I ControlLogix Analog Output Module

Description

The Allen-Bradley 1756-OF8I is an analog output module belonging to the ControlLogix product line, designed for industrial automation systems. It features 8 independently isolated channels, each configurable via software for either voltage or current output to suit diverse application needs, such as driving valves, frequency converters, and actuators.

Key technical specifications include ±10V DC voltage output and 4-20mA DC current output, both with 16-bit resolution and ±0.1% full-scale accuracy. For voltage output, the minimum required load is 10kΩ, while current output supports a maximum load of 500Ω. The module delivers fast performance with a 1ms per-channel conversion rate and a total conversion time of 8ms or less, plus a typical temperature drift of ±50ppm per degree Celsius for stable operation across varying conditions.

Isolation features include 250V AC electrical isolation between channels and 500V AC isolation between the module and the backplane, protecting against electrical interference. Powered by the ControlLogix backplane at 5V DC with a typical 1.2A current draw, it operates in temperatures ranging from 0 degrees Celsius to 60 degrees Celsius, and can be stored at temperatures from -40 degrees Celsius to 85 degrees Celsius for flexible deployment in industrial environments.