Siemens S7-1200 - Step Response of the Analog Inputs; Sample Time and Update Times for the Analog Inputs; Measurement Ranges of the Analog Inputs for Voltage and Current (SB and SM)

Technical specifications
A.8 Analog signal modules (SMs)
S7-1200 Programmable controller
916 System Manual, 03/2014, A5E02486680-AG
A.8.4
Step response of the analog inputs
Table A- 157 Step response (ms), 0 to full-scale measured at 95%
Smoothing selection (sample averaging)
Noise reduction/rejection frequency (Integration time selection)
400 Hz (2.5 ms)
60 Hz (16.6 ms)
50 Hz (20 ms)
10 Hz (100 ms)
None (1 cycle): No averaging 4 ms 18 ms 22 ms 100 ms
Weak (4 cycles): 4 samples
9 ms
52 ms
63 ms
320 ms
Medium (16 cycles): 16 samples
32 ms
203 ms
241 ms
1200 ms
Strong (32 cycles): 32 samples
61 ms
400 ms
483 ms
2410 ms
Sample time
• 4 AI x 13 bits
• 8 AI x 13 bits
• 4 AI4 x 16 bits
• 0.625 ms
• 1.25 ms
• 0.417 ms
• 4.17 ms
• 4.17 ms
• 0.397 ms
• 5 ms
• 5 ms
• 0.400 ms
• 25 ms
• 25 ms
• 0.400 ms
A.8.5
Sample time and update times for the analog inputs
Table A- 158 Sample time and update time
Rejection frequency
(Integration time)
Sample time
Module update time for all channels
4-channel SM
8-channel SM
400 Hz (2.5 ms)
• 4-channel SM: 0.625 ms
• 8-channel SM: 1.250 ms
0.625 ms 1.250 ms
60 Hz (16.6 ms)
4.170 ms
4.17 ms
4.17 ms
50 Hz (20 ms)
5.000 ms
5 ms
5 ms
10 Hz (100 ms)
25.000 ms
25 ms
25 ms
A.8.6
Measurement ranges of the analog inputs for voltage and current (SB and SM)
Table A- 159 Analog input representation for voltage (SB and SM)
System
Voltage Measuring Range
Decimal
Hexadecimal
±10 V
±5 V
±2.5 V
±1.25 V
32767
7FFF
11.851 V
5.926 V
2.963 V
1.481 V
Overflow
32512
7F00
32511
7EFF
11.759 V
5.879 V
2.940 V
1.470 V
Overshoot range
27649
6C01
27648
6C00
10 V
5 V
2.5 V
1.250 V
Rated range
20736
5100
7.5 V
3.75 V
1.875 V
0.938 V
1
1
361.7 μV
180.8 μV
90.4 μV
45.2 μV