Data Sheet for Product

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Siemens Climatix Extension Modules ECV2 CB1N3944en
Smart Infrastructure 2021-02-16
Configurable By software
Reference potential Terminals ┴
Contact voltage Max. DC 24 V (SELV)
Over voltage protection Max. 40 V
Analog inputs (X1…X8)
Ni1000
Sensor current Max. 1.4 mA
Resolution 0.1 K
Accuracy in the range -50…150 °C 0.8 K
Pt1000
Sensor current Max. 1.8 mA
Resolution 0.1 K
Accuracy in the range -40…120 °C 0.9 K
0...2.5 kΩ
Sensor current Max. 1.8 mA
Resolution 1 Ω
Accuracy 5 Ω
DC 0…5 V input for ratiometric sensors
Resolution 1 mV
Accuracy at 0 V 10 mV
Accuracy at 5 V 30 mV
Input resistance 100 kΩ
Ratiometric sensor
Connecting a ratiometric sensor to universal IO
Connecting NTC to universal IO
NTC 10k (B
25/85
= 3977 K)
Sensor current Max. 140 μA
Universal IOs
X1…X12 (T2, T3, T5)