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Table A- 166 Wiring diagrams for the thermocouple SMs
SM 1231 AI 4 x TC 16 bit (6ES7 231-5QD32-0XB0)
Note: Connectors must be gold. See Appendix C, Spare Parts for order number.
TC 2, 3, 4, and 5 not shown connected for clarity.
Table A- 167 Connector pin locations for SM 1231 AI 4 x TC 16 bit (6ES7 231-5QD32-0XB0)
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
Pin
X10 (gold)
1
L+ / 24 VDC
2
M / 24 VDC
3
GND
4
AI 0+ /TC
5
AI 0- /TC
6
AI 1+ /TC
7
AI 1- /TC
A.9 Thermocouple and RTD signal modules (SMs)
SM 1231 AI 8 x TC bit (6ES7 231-5QF32-0XB0)
No connection
No connection
No connection
AI 2+ /TC
AI 2- /TC
AI 3+ /TC
AI 3- /TC
Technical specifications
X11 (gold)
921
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