Allen-Bradley 1734-IB4 Point IO Digital Input Module

Allen-Bradley 1734-IB4 is a four-channel 24V DC sinking digital input module for the POINT I/O system. It accepts four independent 24V DC sensor signals and sinks each input to the common return, simplifying field wiring by allowing sensors to be wired to +24 V and the module to complete the circuit. The module is designed for use in a POINT I/O terminal base with a removable terminal block (RTB) for straightforward wiring and quick replacement, and it communicates its channel states to the controller over the POINT I/O backplane. As part of the Rockwell Automation POINT I/O family, the 1734-IB4 provides modular, scalable input capability for compact control cabinets and distributed I/O architectures, compatible with PLCs in the Rockwell ecosystem such as CompactLogix and Logix-based controllers. This catalog number confirms a four-channel DC input module with a sinking configuration and 24V operation, making it well-suited for digital sensing tasks like pushbuttons, limit switches, proximity sensors, and other binary sensors in manufacturing lines and automation equipment.