Siemens S7-1200 System Manual page 947

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Table of Contents

Technical data

Input impedance

Differential

Behavior on RUN to STOP

Measuring principle

Common mode rejection

Operational signal range

Isolation (field side to logic)

Cable length (meters)

Table A- 208 Diagnostics

Technical data

Overflow/underflow

24 VDC low voltage

Table A- 209 Wiring diagram for the analog input SB

SB 1231 AI x 12 bit (6ES7 231-4HA30-0XB0)

Connect "R" and "0+" for current

Note: Connectors must be gold. See Appendix C, Spare Parts for order number.

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG

SB 1231 AI 1x12 bit

Voltage: 220 kΩ; Current: 250 Ω

Voltage: 55 kΩ; Current: 55 kΩ

Last value or substitute value (default value 0)

Actual value conversion

400 dB, DC to 60 Hz

Signal plus common mode voltage must be less than +35 V and

greater than -35 V

100 m, twisted and shielded

SB 1231 AI 1 x 12 bit

Technical specifications

A.12 Analog signal boards (SBs)