IAC

B&R X20DC11A6

1 ABR incremental encoder 5 V Encoder input monitoring (up to 250 kHz input frequency) 2 additional inputs, e.g. for latch input 5 VDC, 24 VDC and GND for encoder supply NetTime timestamp: Counter change The module is equipped with 1 input for an ABR incremental encoder with RS422-based output signals and 5 V encoder supply. The encoder inputs are monitored (A, B, R, A\, B\, R\).

Lifecycle & replacement

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Technical specifications

Short description
I/O module1 ABR incremental encoder 5 V
General information
Diagnostics / Module run/errorYes, using LED status indicator and software
Power consumption / Bus0.01 W
Power consumption / Internal I/O1 W
Certifications / CEYes
Certifications / UKCAYes
Certifications / CRA (Cyber Resilience Act)In preparation
Certifications / ATEXZone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X
Certifications / ULcULus E115267 Industrial control equipment
Certifications / HazLoccCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5
Certifications / DNVTemperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck)
Certifications / CCSYes
Certifications / LRENV1
Certifications / KRYes
Certifications / ABSYes
Certifications / BVEC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck
Certifications / KCYes
B&R ID code0xB76B
Status indicatorsI/O function per channel, operating state, module status
Additional power dissipation caused by actuators (resistive) [W]-
Type of signal linesShielded lines must be used for all signal lines.
Digital inputs
Input filter / Hardware≤2 µs
Input filter / Software-
Switching threshold / Low<5 VDC
Switching threshold / High>15 VDC
Quantity2
Nominal voltage24 VDC
Input characteristics per EN 61131-2Type 1
Input voltage24 VDC -15% / +20%
Input current at 24 VDCApprox. 3.3 mA
Input circuitSink
Connection type3-wire connections
Input resistance7.03 kΩ
Additional functionsLatch input
Insulation voltage between channel and bus500 Veff
ABR incremental encoder
Encoder power supply / 5 VDC±5%, module-internal, max. 300 mA
Encoder power supply / 24 VDCModule-internal, max. 300 mA
Input filter / Hardware≤30 ns
Input filter / Software-
Switching threshold / Low>1 V
Encoder inputs5 V, symmetrical
Counter size16/32-bit
Input frequencyMax. 5 MHz
Evaluation4x
Minimum diff. slew rate1 V/μs
Common-mode range-10 V ≤ VCM ≤ +13.2 V
Overload characteristics of encoder power supplyShort-circuit proof, overload-proof
Insulation voltage between encoder and bus500 Veff
Electrical properties
Electrical isolationChannel isolated from bus Channel not isolated from channel
Operating conditions
Mounting orientation / HorizontalYes
Mounting orientation / VerticalYes
Installation elevation above sea level / 0 to 2000 mNo limitation
Installation elevation above sea level / >2000 mReduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529IP20
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 / Operation5 to 95%, non-condensing
Relative humidity / Storage5 to 95%, non-condensing
Relative humidity / Transport5 to 95%, non-condensing
Mechanical properties
NoteOrder 1x terminal block X20TB12 separately. Order 1x bus module X20BM11 separately.
Pitch12.5⁺⁰.² mm

Documentation & CAD

Files hosted by B&R Industrial Automation; links open the official download page.

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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.