Product Description:

The X67DI1371.L12 is a digital input block manufactured by B&R Automation for field installation in distributed machine control. It is part of the X67 Analog Input Output Modules series and mounts directly on machinery rather than inside a control cabinet. By converting sensor signals into logic-level data for the X2X real-time network, the module lets controllers monitor limit switches, proximity sensors, and other discrete devices at the point of use while keeping field wiring short across modular machine sections.

The input section is designed around a nominal system voltage of 24 VDC, and each channel references this potential through a sink circuit that accepts PNP sensor outputs. At that voltage, the electronics draw only 7 mA per channel, so power dissipation stays low even when all inputs are active. Signal evaluation follows EN 61131-2 Type 1 rules, with a high state recognized above >15 VDC and a low state accepted below <5 VDC. A front-end impedance of 3 kΩ limits the steady-state current that flows from each sensor while still leaving margin for long cable runs and light-duty proximity switches. The channels are galvanically isolated from the internal bus by 500 Veff, which helps protect the controller from field-side transients.

The housing carries an ingress rating of IP67, allowing use in washdown or splash zones without additional enclosures. The unit provides 16 individually diagnosable input points, and each channel is processed by a hardware filter of ≤100 µs to suppress contact bounce and reduce false transitions. For applications that need extra debouncing, a software filter of 1 ms can be enabled per channel. The module draws 0.75 W from the X2X link for logic and communication, while internal I/O power consumption is 0.5 W and the integrated 24 V sensor feed makes 12 W and 0.5 A available for locally powered devices.