Siemens SIMATIC S7-1200

Technical specifications
A.5 CPU 1212C
S7-1200 Programmable controller
1390 System Manual, V4.2, 09/2016, A5E02486680-AK
A.5.4
Analog inputs
Table A- 37 Analog inputs
Technical data
Description
Number of inputs
2
Type Voltage (single-ended)
Full-scale range
0 to 10 V
Full-scale range (data word) 0 to 27648
Overshoot range
10.001 to 11.759 V
Overshoot range (data word)
27649 to 32511
Overflow range
11.760 to 11.852 V
Overflow range (data word)
32512 to 32767
Resolution
10 bits
Maximum withstand voltage
35 V DC
Smoothing None, Weak, Medium, or Strong
See the table for Step response (ms) for the analog inputs of the CPU
(Page 1390).
Noise rejection
10, 50, or 60 Hz
Impedance
≥100 KΩ
Isolation (field side to logic)
None
Accuracy (25 °C / -20 to 60 °C)
3.0% / 3.5% of full-scale
Cable length (meters)
100 m, shielded twisted pair
A.5.4.1
Step response of the built-in analog inputs of the CPU
Table A- 38 Step Response (ms), 0 V to 10 V measured at 95%
Smoothing selection (sample averaging)
Rejection frequency (Integration time)
60 Hz
50 Hz
10 Hz
None (1 cycle): No averaging
50 ms
50 ms
100 ms
Weak (4 cycles): 4 samples
60ms
70 ms
200 ms
Medium (16 cycles): 16 samples
200 ms
240 ms
1150 ms
Strong (32 cycles): 32 samples 400 ms 480 ms 2300 ms
Sample time
4.17 ms
5 ms
25 ms