B&R Industrial Automation X20DO6321 Powerlink DC Output Module

The X20DO6321 is a 6-channel Powerlink digital output module for the B&R X20 I/O system, delivering 24 VDC sinking outputs at up to 0.5 A per channel for driving 1- or 2-wire loads. It draws about 0.2 W from the Powerlink bus and approximately 0.59 W for internal I/O, with a total nominal output current rating of 3 A across all channels. Each channel switches with a <300 µs rise time (0 → 1) and a <300 µs fall time (1 → 0), and the module provides protective features including thermal shutdown for overcurrent or short-circuit conditions and an output leakage current of about 75 µA when off. The on-resistance is around 120 mΩ, and the module supports a peak short-circuit current below 7 A; overload conditions may trigger a reset in about 10 ms, depending on temperature. Diagnostics are available via a run/error status and an output-monitoring delay of 10 ms, aiding fault detection and reliable operation in industrial control environments. Designed for seamless integration in Powerlink networks, X20DO6321 is identified on the bus by the B&R device code 0x1B99 and is typically paired with X20 bus modules (such as X20BM-series) to form a complete, scalable I/O solution for centralized or distributed automation applications.