B&R X20DI9372 Digital Input Module 12-Channel

Product Overview

The X20DI9372 (X20DI9372) is a high-density digital input module within the B&R X20 System, featuring 12 channels designed for 24 VDC 1-wire connections. This module is an essential component for capturing discrete signals from sensors, switches, and proximity probes in industrial automation environments. Engineered for efficiency and space-saving, the X20DI9372 is widely utilized in high-speed packaging lines, assembly automation, and general machine control. Its fast hardware input filter and configurable software filtering ensure reliable signal detection even in electrically noisy environments, minimizing the risk of false triggers and improving overall system stability.

Technical Configuration

The module architecture focuses on high-speed response times and flexible signal processing to accommodate various industrial sensor types.

• 1-Wire Connectivity: Optimized for 1-wire connection technology, allowing for high-density wiring and reduced cabinet space requirements.

• Dual-Stage Filtering: Features a fixed hardware filter ($\le 100$ $\mu$s) for rapid pulse detection and a software filter configurable from $0$ to $25$ ms (in $0.2$ ms steps) to tune out contact bounce or EMI.

• Precision Switching Thresholds: Operates with clearly defined logic levels (Low $< 5$ VDC; High $> 15$ VDC) to ensure compatibility with standard 24 VDC industrial sensors and PLC outputs.

• Power Management: Consumes only $0.18$ W from the system bus, with an internal I/O consumption of $1.75$ W, maintaining low thermal output within the X20 slice.

Technical Specifications

FAQs

What is meant by "1-wire connection" for this module?

In the X20 system context, a 1-wire connection means the module provides the input terminal for the signal wire only. The common ground (GND) or sensor power must be provided by a separate potential distribution module or through the terminal block's internal bus if applicable.

How do I adjust the input filter time for specific sensors?

The software filter is configured via the hardware configuration tree in B&R Automation Studio. The default setting is 1 ms, but it can be adjusted in 0.2 ms increments to match the switching characteristics of your specific hardware.

Can this module detect very high-speed pulses?

With a hardware filter of $\le 100$ $\mu$s, the module can detect pulses in the kilohertz range. For extremely high-speed counting or encoder applications, a dedicated counter module (like the X20DC series) is typically recommended.

Engineering Guidelines and Wiring Standards

• Potential Distribution: Since this is a 1-wire module, ensure that the return path (0 VDC) for your sensors is correctly tied to the same potential as the X20 system power supply. Using an X20PD potential distribution module adjacent to the DI module is standard practice for organized wiring.

• Signal Integrity: For signal lines exceeding 10 meters, use shielded twisted-pair cabling to prevent inductive coupling from nearby AC power lines. The shield should be grounded at the entry point of the control cabinet.

• Terminal Block Compatibility: The X20DI9372 requires a 12-pin terminal block (e.g., X20TB12). Ensure the block is fully seated and the locking levers are engaged to prevent intermittent signal loss due to vibration.

• Maintenance: Periodically check the diagnostic LEDs on the module faceplate. A steady green "Run" LED indicates normal operation, while the individual channel LEDs provide immediate visual verification of the input logic state during commissioning and troubleshooting.