Technical specifications
A.4 Analog inputs and outputs expansion modules (EMs)
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
749
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)
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.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
Voltage Measuring Range
Decimal
Hexadecimal
±10 V
±5 V
±2.5 V
±1.25 V
32767
7FFF
1
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
0
0
0 V
0 V
0 V
0 V
-1
FFFF
-20736
AF00
-7.5 V
-3.75 V
-1.875 V
-0.938 V
-27648
9400
-10 V
-5 V
-2.5 V
-1.250 V
-27649
93FF
Undershoot range
-32512
8100
-11.759 V
-5.879 V
-2.940 V
-1.470 V
-32513
80FF
Underflow
-32768
8000
-11.851 V
-5.926 V
-2.963 V
-1.481 V
1
7FFF can be returned for one of the following reasons: overflow (as noted in this table), before valid values are available
(for example immediately upon a power up), or if a wire break is detected.
