The B&R X67DM9321.L12 is a digital mixed module from the X67 series. It features 16 digital channels that can be configured as inputs or outputs via software. Inputs use a sink circuit, outputs use a source circuit. The module includes short-circuit and reverse polarity protection, integrated protection for inductive loads, and IP67 sealing for harsh environments. It also provides two counter channels (up to 50 kHz) and single-channel diagnostics for advanced status monitoring