B&R X20DIF371: Core Specs & Quick Installation
Module Type: 16-channel digital input module
Input Circuit: Sink
Connection Type: 1-wire
Rated Input Voltage: 24 VDC
Input Voltage Range: 20.4 to 28.8 VDC (-15% / +20%)
High Level (1): > 15 VDC
Low Level (0): < 5 VDC
Typical Input Current: 2.68 mA (at 24 VDC)
Input Filter: Software-configurable (Default: 1 ms)
Isolation (Channel to Channel): None
Isolation (Channel to Bus): Yes (500 Veff electrical isolation)
1
Structure & Assembly
B&R X20DIF371 Three-Part Design: Consists of a bus module, the B&R X20DIF371 electronics module, and a terminal block.
Snap-On Mounting: Bus module snaps onto standard DIN rail; the B&R X20DIF371 electronics module slides into the base; terminal block locks onto the front of the B&R X20DIF371.
2
Wiring Specifications
B&R X20DIF371 1-Wire Connection: Pins 1 to 16 on the terminal block correspond directly to B&R X20DIF371 input channels DI1 to DI16.
B&R X20DIF371 Sink Configuration: The B&R X20DIF371 accepts +24 VDC high-level signals from external sensors; all B&R X20DIF371 channels share a common internal ground.
3
Mounting Orientation & Temperature
X20DIF371 digital input module Horizontal Mounting: Standard X20DIF371 digital input module orientation allows an operating temperature range of -25°C to 60°C.
X20DIF371 digital input moduleVertical Mounting: Vertical X20DIF371 digital input module installation requires derating; the allowed X20DIF371 digital input module operating temperature drops to -25°C to 50°C.
4
Maintenance & Hot-Plugging
X20DIF371 digital input module Hot-Swappable: The X20DIF371 digital input module electronics module can be safely replaced during active system operation without powering down.
B&R digital input moduleAuto-Configuration: Replacement B&R digital input module modules are recognized automatically by the PLC, restoring all B&R digital input module software filter settings without manual setup.
B&R X20DIF371 FAQ
Q1: What is the primary function of the B&R X20DIF371 module?
A1: The B&R digital input module is a 16-channel digital input slice module designed for the X20 system, utilizing a 1-wire connection style and sink configuration to capture 24 VDC binary signals from industrial sensors.
A1: The B&R digital input module is a 16-channel digital input slice module designed for the X20 system, utilizing a 1-wire connection style and sink configuration to capture 24 VDC binary signals from industrial sensors.
Q2: Does the X20DIF371 B&R support source (PNP) or sink (NPN) sensors?
A2: The B&R digital input module features sink input characteristics, meaning the X20DIF371 B&R requires connected external sensors to provide a +24 VDC high-level source signal, switching current into the X20DIF371 internal circuit to ground.
A2: The B&R digital input module features sink input characteristics, meaning the X20DIF371 B&R requires connected external sensors to provide a +24 VDC high-level source signal, switching current into the X20DIF371 internal circuit to ground.
Q3: Can I replace a damaged X20DIF371 B&R module without switching off the main control power?
A3: Yes, the X20DIF371 B&R supports hot-plugging, allowing you to pull the terminal block and swap the X20DIF371 electronics module while the rest of the PLC system remains fully energized.
A3: Yes, the X20DIF371 B&R supports hot-plugging, allowing you to pull the terminal block and swap the X20DIF371 electronics module while the rest of the PLC system remains fully energized.
Q4: How do I configure the input filter time for the X20DIF371 B&R channels?
A4: The X20DIF371 B&R filter time is software-configurable in B&R Automation Studio, allowing you to adjust the X20DIF371 default 1 ms hardware filter globally from 0 to 25 ms in steps of 0.2 ms.
A4: The X20DIF371 B&R filter time is software-configurable in B&R Automation Studio, allowing you to adjust the X20DIF371 default 1 ms hardware filter globally from 0 to 25 ms in steps of 0.2 ms.
Q5: What are the exact voltage thresholds for high and low logic states on the X20DIF371 B&R?
A5: The X20DIF371 B&R registers a logical "0" (low state) when the input voltage drops below 5 VDC, and registers a logical "1" (high state) when the input voltage exceeds 15 VDC on any X20DIF371 channel.
A5: The X20DIF371 B&R registers a logical "0" (low state) when the input voltage drops below 5 VDC, and registers a logical "1" (high state) when the input voltage exceeds 15 VDC on any X20DIF371 channel.
Q6: Are the 16 input channels on the X20DIF371 B&R electrically isolated from each other?
A6: No, individual channels on the X20DIF371 B&R are not isolated from each other and share a common internal ground, though the X20DIF371 entire input group is isolated from the main system bus up to 500 Veff.
A6: No, individual channels on the X20DIF371 B&R are not isolated from each other and share a common internal ground, though the X20DIF371 entire input group is isolated from the main system bus up to 500 Veff.
Q7: Does the X20DIF371 B&R require a specific terminal block and bus module to operate?
A7: Yes, to complete physical assembly, the B&R digital input module electronics module must be combined with an X20BM11 or X20BM15 bus module and a matching X20TB1F 16-pin terminal block.
A7: Yes, to complete physical assembly, the B&R digital input module electronics module must be combined with an X20BM11 or X20BM15 bus module and a matching X20TB1F 16-pin terminal block.
Q8: Is there a specialized version of the X20DIF371 B&R available for harsh or corrosive environments?
A8: Yes, for environments with severe moisture or aggressive gases, B&R provides a coated version under the exact part number B&R digital input module, which shares identical electrical specifications with the standard X20DIF371 B&R.
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