Siemens SIMATIC S7-1200

Technical specifications
A.5 Analog I/O modules
Easy Book
Manual, 03/2014, A5E02486774-AF
307
Table A- 30 Wiring diagrams for the analog SBs
SB 1231 AI 1 x12 bit
SB 1232 AQ 1 x 12 bit
① Connect "R" and "0+" for current.
A.5.2
SM 1231 analog input (AI)
Table A- 31 SM 1231 analog inputs (AI)
Technical data
SM 1231 AI 4 x 13 bit
SM 1231 AI 8 x 13 bit
SM 1231 AI 4 x 16 bit
Order number (MLFB)
6ES7 231-4HD32-0XB0
6ES7 231-4HF32-0XB0
6ES7 231-5ND32-0XB0
Number of inputs
4 inputs (AI)
8 inputs (AI)
4 inputs
Type Voltage or current
(differential), selectable in
groups of 2
Voltage or current
(differential), selectable in
groups of 2
Voltage or current
(differential)
Dimensions W x H x D (mm)
45 x 100 x 75
45 x 100 x 75
45 x 100 x 75
Weight
180 grams
180 grams
180 grams
Power dissipation
1.5 W
1.5 W
1.8 W
Current consumption (SM Bus)
80 mA
90 mA
80 mA
Current consumption (24 VDC)
45 mA
45 mA
65 mA