Product Description:

The X67BC4321-10 is a remote I/O slice produced by B&R Automation for the X67 Analog Input Output Modules series. It combines a CANopen bus coupler with onboard signal conditioning so discrete sensors and actuators can be connected directly on the machine frame. By converting field signals to the controller’s network protocol, the unit streamlines decentralized installation in industrial automation lines. Its distributed format is useful on conveyors, assembly cells, and other equipment where I/O points are spread across the machine. This placement also helps keep field connections near the process equipment instead of routing every signal back to one enclosure.

With a protection class of IP67, the aluminum housing blocks dust and resists brief immersion, eliminating the need for a control cabinet. The CANopen segment may extend to 1000 m, matching the transceiver’s maximum bus length while maintaining signal integrity. Data telegrams are exchanged at up to 1 Mbit/s, allowing the module’s eight digital channels to switch within typical motion cycle times. Electrical separation rated at 500 Veff shields internal logic from ground loops on sensor wiring. During communication, the fieldbus side draws only 2 W, keeping heat generation minimal inside the sealed enclosure. Unbolded attributes such as the Type 1 input characteristic, a typical 6 kΩ input resistance, and an internal I/O demand of 2.1 W further describe the module’s electrical profile.

The power rail feeding the module operates at 24 VDC; this supply also sources up to 0.5 A per channel and a combined 4 A across all outputs, supporting inductive loads through integrated suppression circuitry. For fast deterministic handshaking with neighboring slices, the X2X backplane refreshes every 500 µs. That internal link can deliver an additional 3 W of power to downstream modules, which helps support stable operation when several nodes are daisy-chained. Local mounting can shorten field wiring, reduce cable clutter, and keep signal connections closer to the sensors and actuators they serve. It can be used in modular machine sections where direct connection of local devices simplifies the overall layout.