X20DI9371 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation X20DI9371 is an input module from the X20 Fieldbus Input Output Modules series, offering 12 sink-type inputs with a nominal input voltage of 24 VDC. It features channel-to-bus isolation rated at 500 V and carries IP20 degree of protection. The module uses a one-wire connection type and supports a hardware filter of up to 100 microseconds.
Internal Product Review
The X20DI9371 is a B & R Automation digital input module for X20 fieldbus I/O systems with 12 inputs and a nominal input voltage of 24 VDC. Channel-to-bus isolation and 500 Veff isolation voltage support dependable signal integrity in industrial control assemblies. IP20 protection and a 100 μs max hardware filter make this module a strong choice for fast, stable input handling.
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Product Description:
The X20DI9371 is a digital input module produced by B & R Automation for the X20 Fieldbus Input Output Modules series. Intended for DIN-rail installation within distributed control cabinets, the device captures discrete sensor or switch states and forwards them to the PLC over the X20 backplane bus. Its compact housing conserves panel width, making it suited for machine tooling, packaging, and material-handling systems that require distributed I/O close to the field devices, where shorter sensor runs can help keep panel wiring organized.
For sensor compatibility, each input is designed for a nominal field level of 24 VDC and follows the EN 61131-2 Type 1 specification, providing predictable switching thresholds during normal voltage variation. The module provides 12 sink-type input circuits, and each one is routed through a 100 µs hardware filter that blocks contact bounce before signal processing. Backplane energy demand is limited to 0.18 W of bus power, so the slice can be added to large I/O clusters without overloading the power supply. Functional safety of the control system is improved by a 500 Veff isolation barrier that separates the channels from the bus and helps reduce common-mode noise. When longer debounce times are needed, the default digital filter can be enabled in the configuration software without additional external components.
An enclosure rated at IP20 permits finger-safe handling inside closed panels, while the 12.5 mm module pitch lets multiple slices line up on a standard bus base. Each channel draws only 3.75 mA because of the fixed 6.4 kΩ input resistance, which helps minimize loading on connected sensors and switch contacts. Internal electronics consume 1.75 W, leaving thermal headroom for convection cooling inside the cabinet. Wiring is accomplished through a 1-wire spring clamp, and the orientation matches negative-common control loops for straightforward field termination.
