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Short description
I/O module 4 digital input channels, 4 digital channels configurable as inputs or outputs, 1 universal counter pair (2 event counters, AB counter or up/down counter), linear movement generator (A/B, direction/frequency) with up to two reference pulses, SSI absolute encoder, relative or absolute timing of input edges with μs resolution, time-triggered I/O, I/O oversampling
General information
B&R ID code 0x2547
Status indicators I/O function per channel, operating state, module status
Module run/error Yes, using LED status indicator and software
Outputs Yes, using LED status indicator
Power consumption
Bus 0.01 W
Internal I/O 1.5 W
Additional power dissipation caused by actuators (resistive) [W] -
Type of signal lines Shielded cables must be used for all signal lines.
CE Yes
KC Yes
UL cULus E115267
Industrial control equipment
HazLoc cCSAus 244665
Process control equipment
for hazardous locations
Class I, Division 2, Groups ABCD, T5
ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc
IP20, Ta (see X20 user's manual)
FTZÚ 09 ATEX 0083X
DNV GL Temperature: B (0 - 55°C)
Humidity: B (up to 100%)
Vibration: B (4 g)
EMC: B (bridge and open deck)
KR Yes
Linear motion generator
Quantity 1
Encoder outputs 24 V, asymmetrical (A/B, direction/frequency)
Counter size 16/32-bit
Digital inputs
Quantity 4 + 4, configuration as input or output using software
Nominal voltage 24 VDC
Input voltage 24 VDC -15% / +20%
Input current at 24 VDC Approx. 1.3 mA
Input circuit Sink
Input filter
Hardware ≤2 µs
Software -
Input resistance 18.4 kΩ
Additional functions SSI absolute encoder, universal counter pair, latch function for universal counter pair
Input frequency 100 kHz
Switching threshold
Low <5 VDC
High >15 VDC
Overload characteristics of encoder power supply Short-circuit proof, overload-proof
Isolation voltage between channel and bus 500 Veff
SSI absolute encoder
Quantity 1
Counter size Up to 32-bit depending on encoder
Max. transfer rate 125 kbit/s
Encoder power supply Module-internal, max. 600 mA
Nominal voltage 24 V, asymmetrical
Universal counter pair
Quantity 1
Operating modes 2x event counter, up/down counter, AB counter
Encoder inputs 24 V, asymmetrical
Counter size 16/32-bit
Input frequency Max. 100 kHz
AB counter 4x
Event counters 2x
Up/Down counter 2x
Signal form Square wave pulse
Encoder power supply Module-internal, max. 600 mA
Digital outputs
Quantity Up to 4, configuration as input or output using software
Variant Push / Pull / Push-Pull
Nominal voltage 24 VDC
Switching voltage 24 VDC -15% / +20%
Nominal output current 0.1 A
Total nominal current 0.4 A
Output circuit Sink and/or source
Output protection Thermal shutdown in the event of overcurrent or short circuit, integrated protection for switching inductive loads
Diagnostic status Output monitoring
Leakage current when switched off Max. 25 µA
Residual voltage <0.9 V at 0.1 A nominal current
Peak short-circuit current <10 A
Switch-on in the event of overload shutdown or short-circuit shutdown Approx. 10 ms (depends on the module temperature)
Switching delay
0 → 1 <2 µs
1 → 0 <2 µs
Switching frequency
Resistive load Max. 125 kHz
Inductive load See section "Switching inductive loads".
Braking voltage when switching off inductive loads Switching voltage + 0.6 VDC
Additional functions Clock for SSI absolute encoder, linear movement generator
Electrical properties
Electrical isolation Channel isolated from bus
Channel not isolated from channel
Operating conditions
Mounting orientation
Horizontal Yes
Vertical Yes
Installation elevation above sea level
0 to 2000 m No limitation
>2000 m Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529 IP20
Ambient conditions
Horizontal mounting orientation -25 to 60°C
Vertical mounting orientation -25 to 50°C
Derating -
Storage -40 to 85°C
Transport -40 to 85°C
Relative humidity
Operation 5 to 95%, non-condensing
Storage 5 to 95%, non-condensing
Transport 5 to 95%, non-condensing
Mechanical properties
Note Order 1x terminal block X20TB12 separately.
Order 1x bus module X20BM11 separately.
Spacing 12.5 +0.2 mm
Material number:
  • 4 digital input channels
  • 4 digital channels, configurable as inputs or outputs
  • 1 universal counter pair (2 event counters, AB counter or up/down counter)
  • Linear movement generator (A/B; direction/frequency) with up to 2 reference pulses
  • SSI absolute encoder
  • NetTime timestamp: Input data, target position, position change, edge change, counter change

The module being used is a multifunctional digital signal processor module. It's flexibility allows it to be implemented for a wide range of tasks involving the creation or processing of digital signals. For example, two main uses include encoder emulation and controlling stepper output stages with pulse and direction signals. When used for encoder emulation, frequency inverters or servo axes with the speed follow function can follow a real or virtual master axis.

A further important feature is the timestamp function, which is integrated in the module. It can be used, for example, to create ramp curves for the counter in the encoder emulation virtually independent of bus cycle times. It's only necessary to enter the target counter value and the time at which it should be reached. The module generates the appropriate counter values, precisely in microsecond resolution and independently of the bus clock.

Mandatory Accessories
Bus modules
X20BM11 X20 bus module, 24 VDC keyed, internal I/O supply continuous
X20BM15 X20 bus module, with node number switch, 24 VDC keyed, internal I/O supply continuous
Terminal blocks
X20TB12 X20 terminal block, 12-pin, 24 VDC keyed
Automation Studio HW Upgrades Version (Date) Download
V2.7 HW Upgrade (X20DS1319) EXE / 2 MB
V3.0 HW Upgrade (X20DS1319) EXE / 4 MB
V4.0 HW Upgrade (X20DS1319) EXE / 2 MB
Certificates Version (Date) Download
244665 CSA HazLoc Certificate of Compliance X20, X67 PDF / 56 KB
DNV GL Type Approval Certificate - X20 / Power Panel T30 PDF / 171 KB
E115267 UL CoC X20 PDF / 825 KB
FTZU 09 ATEX 0083X PDF / 697 KB
KR Type Approval Certificate MIL39390-AC003 (X20 System) PDF / 758 KB
Lloyds Register PDF / 579 KB
Safe cutoff of potential groups PDF / 147 KB
Documentation Version (Date) Download
Data sheet X20DS1319 PDF / 854 KB
X20 System User´s Manual PDF / 50 MB
E-CAD (Electro or EPLAN Templates) Version (Date) Download
X20 EPLAN P8 from V2.4 EXE / 161 MB
M-CAD (Mechan. Templates) Version (Date) Download
3D File DXF/STEP X20 Electronic module ZIP / 10 KB
3D File STEP X20 I/O-Slice ZIP / 872 KB
Dimensions PDF X20 Electronic module PDF / 3 KB

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