Allen-Bradley 1746-IV16 DC-Source Input Module

Allen-Bradley 1746-IV16 is a 16-channel digital input module for the SLC 500 system that provides DC sourcing inputs from a 10–30 V DC source. Designed for general-purpose sensing, this module is built to mount in a 1746 backplane and draws 85 mA from the 5 V backplane rail while delivering 16 discrete input signals to the PLC. It supports 16 inputs with an intrinsic 8 ms signal delay and an off-state current of about 1 mA, making it suitable for monitoring 24 VDC sensors such as switches and proximity devices in compact industrial control panels. Commonly cataloged as 1746-IV16 for SLC 500, it specifies 16 inputs, 10–30 V DC source operation, and sourcing-type input behavior within the Rockwell Automation 1746 I/O family.