Allen-Bradley 1746-FIO4I 4 Channel Digital IO Module

The Allen-Bradley 1746-FIO4I is a four-channel fast analog I/O module for the SLC 500 system, combining two differential input channels with two current-output channels in a single plug-in module. Each input channel is configurable to accept either 0–10 V or 0–20 mA signals, enabling flexible interfacing to sensors and transducers, while the two current-output channels provide 0–20 mA drive for actuators or control loops. The outputs are not individually isolated. The module’s backplane power requirements are listed for both 5 V and 24 V rails, with a backplane current of 55 mA at 5 V and 150 mA at 24 V, and it carries ID Code 3224. Cataloged as 1746-FIO4I, this module is designed for use in compatible AB SLC 500 backplanes and supports expansion within the SLC 500 ecosystem.