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Short description
I/O module 8 digital outputs 11.5 to 30 V for 1-wire connections
General information
B&R ID code 0xDF4E
Status indicators Operating state, module status
Module run/error Yes, using status LED and software
Outputs Yes, using software
Power consumption
Bus 160 mW
Internal I/O 200 mW (without load)
Additional power dissipation caused by actuators (resistive) [W] -
CE Yes
ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc
IP20, Ta (see X20 user's manual)
FTZÚ 09 ATEX 0083X
UL cULus E115267
Industrial control equipment
HazLoc cCSAus 244665
Process control equipment
for hazardous locations
Class I, Division 2, Groups ABCD, T5
Digital outputs
Variant FET push/pull (high resistance)
Nominal voltage 11.5 to 30 V
Nominal output current 0.5 A
Total nominal current 4 A
Connection type 1-wire connections
Output circuit Sink / source
Diagnostic status
Voltage monitoring 11.5 V < supply voltage < 30 V
Output monitoring Output OK
Leakage current when the power is switched off 5 μA per channel
RDS(on) 120 mΩ (low-side), 140 mΩ (high-side)
Switching delay
0 → 1 Max. 450 μs
1 → 0 Max. 450 μs
Switching frequency
Resistive load Max. 100 Hz
Isolation voltage between channel and bus 500 V
Reverse polarity protection Yes
Switching voltage
Minimum 11.5 VDC
Nominal 12 to 24 VDC
Maximum 30 VDC
Protective circuit
External 24 VDC voltage supply – Maximum current 5A (blow-out fuse)
Internal Thermal cutoff, integrated protection for switching inductances
Electrical properties
Electrical isolation
Channel isolated from bus

Channel not isolated from channel and I/O power supply
Operating conditions
Mounting orientation
Horizontal Yes
Vertical Yes
Installation elevation above sea level
0 to 2000 m No limitations
>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 X20TB12 terminal block separately
Order 1x X20BM11 bus module separately
Pitch 12.5+0.2 mm
Material number:
  • 8 digital outputs
  • High-side or low-side connection
  • Push/pull outputs
  • 1-wire connections
  • Integrated output protection

The module is an electrically isolated 8-channel digital output module. It can be configured as high-side or low-side or as a push/pull output for controlling 12 to 24 VDC DC motors.

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
V3.0 HW Upgrade (X20DO8323) EXE / 1 MB
V4.0 HW Upgrade (X20DO8323) EXE / 623 KB
Certificates Version (Date) Download
244665 CSA HazLoc Certificate of Compliance X20, X67 PDF / 56 KB
E115267 UL CoC X20 PDF / 847 KB
FTZU 09 ATEX 0083X PDF / 697 KB
Documentation Version (Date) Download
X20 System User´s Manual PDF / 56 MB
E-CAD (Electro or EPLAN Templates) Version (Date) Download
X20 EPLAN P8 from V2.4 EXE / 161 MB
General Version (Date) Download
Data sheet X20DO8323 PDF / 225 KB
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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