X20DI9371 | B&R | X20 Digital Input Module 12 digital inputs 24 VDC for 1-wire connections

Description

The X20DI9371 is a digital input module designed for 1-wire connections, part of the X20 product line. It features 12 independent digital input channels with a 24 VDC input rating, supporting both dry (passive switch) and wet (active signal) contact inputs. The input type is sink-type, with an allowable input voltage range of 15 to 30 VDC to accommodate industrial power fluctuations. Each channel draws a typical 3 mA of current when conducting, with a maximum of 5 mA. Switch thresholds are set at ≥15 VDC for high (ON) signals and ≤5 VDC for low (OFF) signals. A key feature is its software-configurable input filter, with a response time range of 0.1 ms to 100 ms and a default 3 ms setting, which can be adjusted to reduce false triggers in high-frequency interference environments. Communication occurs via the X2X Link bus with X20 series CPUs or bus couplers, offering a data update cycle as fast as 1 ms to meet real-time control requirements. Power is supplied through the X20 series backplane bus (24 VDC from a bus coupler or adjacent module), with a total power consumption of approximately 2.5 W when all 12 channels are in operation.