Allen-Bradley 1756-OB16 ControlLogix Diagnostic DC Output Module

Description

The Allen-Bradley 1756-OB16 is a digital DC output module belonging to the ControlLogix series, designed for industrial automation control systems. It features 16 independently isolated output channels, each capable of 1A output current with a total module current limit of 5.1A, and supports a 10-30V DC voltage range, compatible with 12/24V DC industrial standards. Channels can be configured via jumpers for sourcing or sinking current modes, and its full-channel 500V AC independent isolation design delivers strong anti-interference performance. Operating in temperatures from -40 degrees Celsius to 70 degrees Celsius, it is suitable for harsh industrial environments such as petrochemical and mining applications. The module includes built-in short-circuit and overload protection, and meets safety certifications including IECEx, ATEX, and CCC, with a typical power consumption of 5.1W at 24V DC supply. It seamlessly integrates with the ControlLogix platform, supporting the Logix5000 programming environment and communication protocols like EtherNet/IP and ControlNet, and is ideal for controlling loads such as solenoid valves, relays, contactor coils, LED indicators, and alarms. A related model, the 1756-OB16D, offers 16 diagnostic outputs grouped into 8-point sets, a 19-30V DC output range, 250V isolation between 8-channel groups, point-level output fault detection, and flexible direct or chassis-optimized communication options.