Allen-Bradley 1746-IB16 SLC 500 Digital I/O Module

Description

The Allen-Bradley 1746-IB16 SLC 500 Digital I/O Module is a DC digital input module engineered exclusively for the SLC 500 PLC system, designed to integrate field device signals into industrial automation control workflows. It features 16 24V DC sinking input circuits, providing reliable signal capture for discrete field devices such as buttons, sensors, and switches, then transmitting these signals to the PLC processor for logic processing and control.

Key technical specifications include: a backplane current of 0.085 amps at 5V DC, with a rated surge current of 0.8 amps; alternative backplane current ratings are 50mA at 5V DC and 0mA at 24V DC. The module has a nominal input current of 8mA at 24V DC, with a 1mA off-state input current, and consistent 8ms signal ON and OFF delay for stable signal processing. Thermal performance metrics include 0.2W of heat dissipation per single point, a minimum total heat dissipation of 0.425W, and a maximum total heat dissipation of 3.60W.

Optimized for compatibility, it pairs effectively with the 1746-SIM input simulator and supports use with pre-wired cables equipped with pre-wired RTBs for simplified installation. Its 10-30V DC operating voltage range for sinking inputs ensures adaptability to diverse industrial power environments.