Siemens SIMATIC S7-1200

Technical specifications
A.14 Analog signal boards (SBs)
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1523
A.14.5
RTD signal boards (SBs)
A.14.5.1
SB 1231 1 analog RTD input specifications
Note
To use this SB, your CPU firmware must be V2.0 or higher.
Table A- 229 General specifications
Technical data
SB 1231 AI 1 x 16 bit RTD
Article number
6ES7231-5PA30-0XB0
Dimensions W x H x D (mm)
38 x 62 x 2
Weight
35 grams
Power dissipation
0.7 W
Current consumption (SM Bus)
5 mA
Current consumption (24 V DC)
25 mA
Table A- 230 Analog inputs
Technical data
SB 1231 AI 1 x 16 bit RTD
Number of inputs
1
Type
Module referenced RTD and Ohms
Range
• Nominal range (data word)
• Overrange/underrange (data word)
• Overflow/underflow (data word)
See Selection tables (Page 1526).
Resolution
Temperature
0.1 °C/ 0.1 °F
Voltage
15 bits plus sign
Maximum withstand voltage
±35 V
Noise rejection
85 dB (10 Hz, 50 Hz, 60 Hz, 400 Hz)
Common mode rejection
> 120 dB
Impedance
≥ 10 MΩ
Accuracy See Selection tables (Page 1526).
Repeatability
±0.05% FS
Maximum sensor dissipation 0.5 m W
Measuring principle
Integrating
Module update time
See Selection table (Page 1526).
Isolation (field side to logic)
707 V DC (type test)
Cable length (meters)
100 m to sensor max.
Wire resistance
20 Ω, 2.7 for 10 Ω RTD max.