Siemens eWON4002 - Manual (Page 22)

eWON4002™
Installation Guide
page 19 of 35
ver 2.04
Note: pay attention to the fact that switch 1 configures AI4, switch 2 configures AI3, ....
5.7.2 Resistive Temperature Detector Inputs
These inputs are differential PT100 inputs that can be used with any classical 100 Ohm PT100 sensing element.
Specification Value
Input range 0 to 10 VDC
Number of inputs 4
Common points 1
Resolution 12 bits (5 mV)
Precision 0.50%
Voltage input impedence 300 kOhm
Overvoltage protection 12VDC (automatic fuse)
Table 16: Standard Analog Inputs - Voltage input specification
Specification Value
Input range 0 to 20 mA
Number of inputs 4
Common points 1
Resolution 12 bits (10 µA)
Precision 0.50%
Current input impedence 220 Ohm (1%)
Max current 25 mA
Table 17: Standard Analog Inputs - Current input specification
Specification Value
Type PT100 - 2 wires
Method Current of 200µA, voltage measure
Range 0 to 100°C
Resolution 12 bits
Table 18: Analog Inputs - specification