Sample Time And Update Times For The Analog Inputs; Measurement Ranges Of The Analog Inputs For Voltage And Current (Sb And Em) - Siemens SIMATIC S7 System Manual

A.4.5

Sample time and update times for the analog inputs

Table A- 111 Sample time and update time
Rejection frequency (Integra-
tion time)
400 Hz (2.5 ms)
60 Hz (16.6 ms)
50 Hz (20 ms)
10 Hz (100 ms)
A.4.6

Measurement ranges of the analog inputs for voltage and current (SB and EM)

Table A- 112 Analog input representation for voltage (SB and EM)
System
Decimal Hexadecimal
32767 7FFF
1
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
7FFF can be returned for one of the following reasons: overflow (as noted in this table), before valid values are available
1
(for example immediately upon a power up), or if a wire break is detected.
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
Sample time
4-channel SM: 0.625 ms
•
8-channel SM: 1.250 ms
•
4.170 ms
5.000 ms
25.000 ms
Voltage Measuring Range
±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
A.4 Analog inputs and outputs expansion modules (EMs)
Module update time for all channels
4-channel SM
0.625 ms
4.17 ms
5 ms
25 ms
±2.5 V ±1.25 V
2.963 V 1.481 V
2.940 V 1.470 V
2.5 V 1.250 V
1.875 V 0.938 V
90.4 μV 45.2 μV
0 V 0 V
-1.875 V -0.938 V
-2.5 V -1.250 V
-2.940 V -1.470 V
-2.963 V -1.481 V
Technical specifications
8-channel SM
1.250 ms
4.17 ms
5 ms
25 ms
Overflow
Overshoot range
Rated range
Undershoot range
Underflow
749