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Short description
I/O module Measurement of ambient conditions:
Internal module temperature, relative humidity, operating hours, power-on cycles
General information
B&R ID code 0xF1AC
Status indicators Memory access, operating state, module status
Module run/error Yes, using status LED and software
Blackout mode
Scope Module
Function Module function
Standalone mode No
Power consumption
Bus 0.4 W
Internal I/O -
Additional power dissipation caused by actuators (resistive) [W] -
Application memory
Type 512 kB flash memory
Sectors 8 sectors, 64 kB each
Data retention 20 years at 55°C
Guaranteed erase/write cycles 100,000 per sector
Error-correcting code (ECC) No
Write protection No
CE Yes
UL cULus E115267
Industrial control equipment
Temperature and humidity sensor
Sensor position Module-internal
Sampling rate 1 s
Temperature measurement
Measurement range -25 to 125°C
Resolution 0.1°C/LSB
Max. error ±0.3°C
Humidity measurement
Measurement range 5 to 95%
Resolution 1%/LSB
Max. error ±2% at 10 to 80% relative humidity
±3% at <10 and >80% relative humidity
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
Pitch 12.5 +0.2 mm
Material number:
  • Measurement and evaluation of the ambient conditions in the control cabinet
  • Recording ambient conditions
  • Recording operating hours and power-on cycles
  • Saving user data directly on the module
  • Supports blackout mode

The module is designed for measuring ambient conditions in the control cabinet as well as recording operating hours and power-on cycles. In addition, the module offers the option of storing user data directly on the module and supports blackout mode.

Measuring and evaluating ambient conditions

The ambient conditions are continuously evaluated by the module. The duration in which individual parameters are within certain ranges is stored internally. This makes it possible, for example, to determine how long the system remained in a certain temperature range. The histograms recorded by the module can be read out by the user.

Internal module memory for user data

With 512 kB nonvolatile user memory (flash), data from the application can be saved directly on the module and also read back from the module. The data is therefore retained after the module or CPU is restarted and remains with the module in the event that the module is connected to another machine or system, for example. Data retention is maintenance-free – without batteries.

Blackout mode

The integrated blackout mode ensures that module functionality is maintained even in the event of network failure.

Mandatory Accessories
Bus modules
X20BM11 X20 bus module, 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
V4.0 HW Upgrade (X20CMR010) EXE / 2 MB
Certificates Version (Date) Download
E115267 UL CoC X20 PDF / 847 KB
Documentation Version (Date) Download
Data sheet X20CMR010 PDF / 1 MB
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
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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