X20AT4222 X20 Input Module - B&R Supplier in China

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X20AT4222 X20 Input Module
  • 4 inputs for resistance temperature measurement
  • For PT100 and PT1000
  • Configurable sensor type per channel
  • Direct resistance measurement
  • Configurable 2- or 3- wire connections per module
  • Configurable filter time

The module is equipped with 4 inputs for PT100/PT1000 resistance temperature measurement.


Short description
I/O module 4 inputs for Pt100 or Pt1000 resistance temperature measurement
General information
B&R ID code 0x1BA7
Status indicators I/O function per channel, operating state, module status
Module run/error Yes, using LED status indicator and software
Inputs Yes, using LED status indicator and software
Power consumption  
Bus 0.01 W
Internal I/O 1.1 W
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
DNV Temperature: B(0 - 55°C)
Humidity: B(up to 100%)
Vibration: B(4 g)
EMC: B(bridge and open deck)
KR Yes
KC Yes
Resistance measurement temperature inputs
Input Resistance measurement with constant current supply for 2- or 3-wire connections
Digital converter resolution 16-bit
Filter time Configurable between 1 ms and 66.7 ms
Conversion time  
1 channel 20 ms with 50 Hz filter
2 - 4 channels 40 ms per channel with 50 Hz filter
Conversion procedure Sigma-delta
Output format INT or UINT for resistance measurement
Sensor type Configurable per channel
Pt100 -200 to 850°C
Pt1000 -200 to 850°C
Resistance measurement range 0.1 to 4500 Ω / 0.05 to 2250 Ω
Input filter First-order low-pass filter / cutoff frequency 500 Hz
Sensor standard EN 60751
Common-mode range >0.7 V
Insulation voltage between channel and bus 500 Veff
Linearization method Internal
Measurement current 250 µA ±1.25%
Reference 4530 Ω ±0.1%
Permissible input signal Short-term max. ±30 V
Max. error at 25°C  
Gain 0.037% 
Offset 0.0015% 
Max. gain drift 0.004%/°C 
Max. offset drift 0.00015%/°C 
Nonlinearity <0.001% 
Crosstalk between channels <-93 dB
Temperature sensor resolution  
Pt100 1 LSB = 0.1°C
Pt1000 1 LSB = 0.1°C
Resistance measurement resolution  
G = 1 0.1 Ω
G = 2 0.05 Ω
Common-mode rejection  
50 Hz >80 dB
DC >95 dB
Standardized range of values for resistance measurement  
G = 1 0.1 to 4500 Ω
G = 2 0.05 to 2250 Ω
Temperature sensor normalization  
Pt100 -200.0 to 850.0°C
Pt1000 -200.0 to 850.0°C
Temperature measurement monitoring  
Range undershoot 0x8001
Range overshoot 0x7FFF
Open circuit 0x7FFF
General fault 0x8000
Open inputs 0x7FFF
Resistance measurement monitoring  
Range overshoot 0xFFFF
Open circuit 0xFFFF
General fault 0xFFFF
Open inputs 0xFFFF
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.
Pitch 12.5+0.2mm