Step Response Of The Built-In Analog Inputs Of The Cpu; Sample Time For The Built-In Analog Ports Of The Cpu; Measurement Ranges Of The Analog Inputs For Voltage - Siemens SIMATIC S7 System Manual

A.2.3.1

Step response of the built-in analog inputs of the CPU

Table A- 18 Step Response (ms), 0V to 10V measured at 95%
Smoothing selection (sample averaging)
None (1 cycle): No averaging
Weak (4 cycles): 4 samples
Medium (16 cycles): 16 samples
Strong (32 cycles): 32 samples
Sample time
A.2.3.2

Sample time for the built-in analog ports of the CPU

Table A- 19 Sample time for built-in analog inputs of the CPU
Rejection frequency(Integration time selection)
60 Hz(16.6 ms)
50 Hz (20 ms)
10 Hz (100 ms)
A.2.3.3

Measurement ranges of the analog inputs for voltage

Table A- 20 Analog input representation for voltage
System
Decimal Hexadecimal
32767 7FFF
32512 7F00
32511 7EFF
27649 6C01
27648 6C00
20736 5100
1 1
0 0
-1 FFFF
-20736 AF00
-27648 9400
-27649 93FF
-32512 8100
-32513 80FF
-32768 8000
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
4.17 ms
±10 V ±5 V
11.851 V 5.926 V
11.759 V 5.879 V
10 V 5 V
7.5 V 3.75 V
361.7 μV 180.8 μV
0 V 0 V
-7.5 V -3.75 V
-10 V -5 V
-11.759 V -5.879 V
-11.851 V -5.926 V
Rejection frequency (Integration time)
60 Hz
63 ms
84 ms
221 ms
424 ms
Voltage Measuring Range
±2.5 V
2.963 V Overflow
2.940 V Overshoot range
2.5 V Rated range
1.875 V
90.4 μV
0 V
-1.875 V
-2.5 V
Undershoot range
-2.940 V
Underflow
-2.963 V
553BTechnical specifications
50 Hz
65 ms
93 ms
258 ms
499 ms
5 ms
Sample time
4.17 ms
5 ms
25 ms
0 to 10 V
11.851 V
11.759 V
10 V
7.5 V
361.7 μV
0 V
Negative
values are not
supported
A.2 CPU 1211C
10 Hz
130 ms
340 ms
1210 ms
2410 ms
25 ms
Overflow
Overshoot
range
Rated range
669