Siemens SIMATIC S7-1200 - Page 1525

Technical specifications
A.14 Analog signal boards (SBs)
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1525
Table A- 232 Wiring diagram for SB 1231 AI 1 x 16 bit RTD
SB 1231 AI 1 x 16 bit RTD (6ES7231-5PA30-0XB0)
①
Loop-back unused RTD input
②
2-wire RTD
③
3-wire RTD
④
4-wire RTD
Note: Connectors must be gold. See Appendix C, Spare Parts for article number.
Table A- 233 Connector pin locations for SB 1231 AI 1 x 16 bit RTD (6ES7231-5PA30-0XB0)
Pin
X19 (gold)
1
No connection
2
No connection
3
AI 0 M+ /RTD
4
AI 0 M- /RTD
5
AI 0 I+ /RTD
6
AI 0 I- /RTD