User Manual

Publication 1746-UM003A-EN-P
1-2 Overview
Figure 1.1 Simplified RTD Module Circuit
Constant Current Source
RTD Module
Backplane
Digital Data
Digital Data
RTD
RTD
RTD
RTD
Sense
Sense
Sense
Sense
Return
Return
Return
Return
RTD 0
RTD 1
RTD 2
RTD 3
A/D
Conversion
Ic=0.25 or
1.0 mA
RTD
RTD
RTD
RTD
Sense
Sense
Sense
Sense
Return
Return
Return
Return
RTD 4
RTD 5
RTD 6
RTD 7
µP Circuit