User Manual

Technical specifications
A.8 RTD and Thermocouple modules
Easy Book
Manual, 03/2014, A5E02486774-AF
321
Table A- 50 Wiring diagrams for the RTD SMs
SM 1231 RTD 4 x 16 bit
SM 1231 RTD 8 x 16 bit
①
Loop-back unused RTD inputs
②
2-wire RTD
③
3-wire RTD
④
4-wire RTD
Note: Connectors must be gold. See the S7-1200 Programmable controller system manual, Appendix C.
A.8.3
SM 1231 TC specifications
Table A- 51 General specifications
Model
SM 1231 AI 4 x 16 bit TC
SM 1231 AI 8 x 16 bit TC
Order number
6ES7 231-5QD32-0XB0
6ES7 231-5QF32-0XB0
Dimensions
W x H x D (mm)
45 x 100 x 75 45 x 100 x 75
Weight
180 grams
xxx grams
Power dissipation
1.5 W
1.5 W
Current consumption
(SM Bus)
80 mA 80 mA
Current consumption
1
(24 VDC)
40 mA 40 mA