Siemens S7-1200 System Manual page 927
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- Operating instructions manual (132 pages) ,
- Programming manualline (74 pages) ,
- Manual (46 pages)
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Table A- 175 Wiring diagrams for the RTD SMs
SM 1231 RTD 4 x 16 bit (6ES7 231-5PD32-0XB0)
①
Loop-back unused RTD inputs
②
③
2-wire RTD
3-wire RTD
NOTE: Connectors must be gold. See Appendix C, Spare Parts for order number.
Table A- 176 Connector Pin Locations for SM 1231 RTD 4 x 16 bit (6ES7 231-5PD32-0XB0)
Table A- 177 Connector Pin Locations for SM 1231 RTD 8 x 16 bit (6ES7 231-5PF32-0XB0)
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
④
4-wire RTD
Pin
X10 (gold)
1
L+ / 24 VDC
2
M / 24 VDC
3
GND
4
AI 0 M+ /RTD
5
AI 0 M- /RTD
6
AI 0 I+ /RTD
7
AI 0 I- /RTD
Pin
X10 (gold)
1
L+ / 24 VDC
2
M / 24 VDC
3
GND
4
AI 0 M+ /RTD
5
AI 0 M- /RTD
6
AI 0 I+ /RTD
A.9 Thermocouple and RTD signal modules (SMs)
SM 1231 RTD 8 x 16 bit (6ES7 231-5PF32-0XB0)
X11 (gold)
No connection
No connection
No connection
No connection
No connection
No connection
AI 1 M+ /RTD
AI 2 M+ /RTD
AI 1 M- /RTD
AI 2 M- /RTD
AI 1 I+ /RTD
AI 2 I+ /RTD
AI 1 I- /RTD
AI 2 I- /RTD
X11 (gold)
No connection
No connection
No connection
No connection
No connection
No connection
AI 2 M+ /RTD
AI 4 M+ /RTD
AI 2 M- /RTD
AI 4 M- /RTD
AI 2 I+ /RTD
AI 4 I+ /RTD
Technical specifications
X12 (gold)
X13 (gold)
No connection
No connection
No connection
AI 3 M+ /RTD
AI 3 M- /RTD
AI 3 I+ /RTD
AI 3 I- /RTD
X12 (gold)
X13 (gold)
No connection
No connection
No connection
AI 6 M+ /RTD
AI 6 M- /RTD
AI 6 I+ /RTD
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