Analog Filter (0Ba7 Only) - Siemens LOGO! Series Manual

4.4.34

Analog filter (0BA7 only)

Short Description
The analog filter function smooths the analog input signal.
Symbol in LOGO!
* AI1...AI8: 0...10 V corresponds with 0...1000 (internal value).
Timing diagram (example)
LOGO!
Manual, 04/2011, A5E03556174-01
Wiring Description
Ax Input Ax is the analog input signal to be smoothed.
Input Ax is one of the following analog signals:
•
•
•
•
•
•
Parameter Sn (Number of samples) determines how many
analog values are sampled within the program cycles
that are determined by the set number of samples.
LOGO! samples an analog value within every
program cycle. The number of program cycles is
equal to the set number of samples.
Possible settings:
8, 16, 32, 64, 128, 256
Output AQ AQ is the average value of input Ax over the current
number of samples.
4.4 Special functions list - SF
AI1 to AI8 (*)
AM1 to AM16
NAI1 to NAI32
AQ1 to AQ2
NAQ1 to NAQ16
Block number of a function with analog output
LOGO! functions
271