B&R X20cDM9324
8 digital inputs, sink connections 4 digital outputs, source connections 1-wire connections Configurable software input filter for entire module Integrated output protection This module is equipped with 8 inputs and 4 outputs for 1-wire connections. The inputs are designed for sink connections, the outputs for source connections.
Lifecycle & replacement
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Technical specifications
Short description
| I/O module | 8 digital inputs 24 VDC for 1-wire connections, 4 digital outputs 24 VDC for 1-wire connections |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Outputs | Yes, using LED status indicator and software (output error status) |
| Power consumption / Bus | 0.21 W |
| Power consumption / Internal I/O | 0.5 W |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / ATEX | Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X |
| Certifications / UL | cULus E115267 Industrial control equipment |
| Certifications / HazLoc | cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5 |
| Nominal voltage | 24 VDC |
| B&R ID code | 0xE225 |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | +0.21 |
Digital inputs
| Input filter / Hardware | ≤100 µs |
| Input filter / Software | Default 1 ms, configurable between 0 and 25 ms in 0.2 ms increments |
| Switching threshold / Low | <5 VDC |
| Switching threshold / High | >15 VDC |
| Input characteristics per EN 61131-2 | Type 1 |
| Input voltage | 24 VDC -15% / +20% |
| Input current at 24 VDC | Typ. 3.75 mA |
| Input circuit | Sink |
| Connection type | 1-wire connections |
| Input resistance | Typ. 6.4 kΩ |
| Insulation voltage between channel and bus | 500 Veff |
Digital outputs
| Switching delay / 0 → 1 | <300 µs |
| Switching delay / 1 → 0 | <300 µs |
| Switching frequency / Resistive load | Max. 500 Hz |
| Switching frequency / Inductive load | See section "Switching inductive loads". |
| Variant | Current-sourcing FET |
| Switching voltage | 24 VDC -15% / +20% |
| Nominal output current | 0.5 A |
| Total nominal current | 2 A |
| Connection type | 1-wire connections |
| Output circuit | Source |
| Output protection | Thermal shutdown in the event of overcurrent or short circuit (see value "Short-circuit peak current") Internal freewheeling diode for switching inductive loads (see section "Switching inductive loads") |
| Diagnostic status | Output monitoring with 10 ms delay |
| Leakage current when the output is switched off | 5 µA |
| RDS(on) | 210 mΩ |
| Peak short-circuit current | <12 A |
| Switch-on in the event of overload shutdown or short-circuit shutdown | Approx. 10 ms (depends on the module temperature) |
| Braking voltage when switching off inductive loads | Typ. 50 VDC |
| Insulation voltage between channel and bus | 500 Veff |
Electrical properties
| Electrical isolation | Channel isolated from bus Channel not isolated from channel |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | Yes |
| Installation elevation above sea level / 0 to 2000 m | No limitation |
| Installation elevation above sea level / >2000 m | Reduction of ambient temperature by 0.5°C per 100 m |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / Derating | - |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | Up to 100%, condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / Transport | 5 to 95%, non-condensing |
Mechanical properties
| Note | Order 1x terminal block X20TB12 separately. Order 1x bus module X20cBM11 separately. |
| Pitch | 12.5⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
ECAD / EPLAN
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.