Siemens M7-400 Benutzerhandbuch
Analog Modules
5-96
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Step Response with Strong Smoothing
The following figure illustrates the contents of Table 5-57. It shows the filter settling
time after which, in the case of a step response, the smoothed analog value is
applied to almost 100%, depending on the interference frequency suppression that
has been set. The figure applies to every change of signal at an analog input.
time after which, in the case of a step response, the smoothed analog value is
applied to almost 100%, depending on the interference frequency suppression that
has been set. The figure applies to every change of signal at an analog input.
50
100
0
63
Interference frequency suppression 400 Hz:
60 Hz:
50 Hz:
50 Hz:
Filter settling time in ms
Signal variation
in percent
in percent
Step response for any analog input signal
120
30
150
60
12.5
83.333 100
Figure 5-32
Step Response of the SM 431; AI 8
14 Bit (6ES7 431-1KF20-0AB0)
5.20.2
Measuring Methods and Measuring Ranges of the SM 431;
AI 8
AI 8
14 Bit
Measuring Methods
You can set the following measuring methods for the input channels:
•
Voltage measurement
•
Current measurement
•
Resistance test
You specify the setting by means of the measuring range modules on the module
and the “Measuring Type” parameter in STEP 7.
and the “Measuring Type” parameter in STEP 7.