B&R Industrial Automation X20DM9324 Digital IO Module

The B&R X20DM9324 is an 8-channel digital input and 4-channel digital output module for the X20 I/O system, designed for 24 VDC logic with 1-wire connections. It provides eight sink inputs and four source outputs that connect to the X20 backplane via the standard 12-pin X20 terminal block, and it carries the B&R ID code 0x20B9. The module operates on a nominal 24 VDC supply with input voltage tolerance of -15% to +20% (EN 61131-2). Key power characteristics include bus consumption around 0.21 W, internal I/O dissipation near 0.5 W and external I/O dissipation around 1.17 W, with an additional power dissipation path for actuators of about 0.21 W. Diagnostics and run/status information are available via per-channel status indicators and module-level LED and software diagnostics. The X20DM9324 weighs about 0.05 kg and uses the X20 bus architecture with a 12-pin terminal block for connections. Certifications include CE, KC, UL/cULus, and HazLoc approvals such as cCSAus and ATEX Zone 2 II 3G Ex nA nC IIA T5, with IP20 enclosure protection. This compact I/O slice is suited for machine control and automation tasks where eight digital inputs monitor sensors and four digital outputs drive actuators, providing reliable 24 V logic interfacing within B&R’s X20 ecosystem.