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Programming wiring
MN05013005E
220
Wiring a signal smoothing filter
You can integrate a signal smoothing filter into your circuit as
a coil.
Figure 113: EZD circuit diagram with smoothing function block
Parameter display and parameter set for the FT function
block:
Inputs
The function block inputs
>
I1,
>
I2 and
>KP
can have the
following operands:
• Constants
• Markers MD, MW, MB
• Analog inputs IA01 to IA04
– IA01: terminal I7
– IA02: terminal I8
– IA03: terminal I11
– IA04: terminal I12
• Analog output QA01
• Actual value
…
QV> of another function block
M 48----------------------------Ä FT17EN
FT17 +
>I1
>TG
>KP
QV>
FT17
FT PT1 signal smoothing filter function block, number 17
+
Appears in the parameter display
>I1
Input value
>TG
Recovery time
>KP
Proportional gain
QV>
Output value, smoothed
J
The recovery time T
g
is the time in which the output value is
calculated.
The recovery time T
g
must be set so that it is an integer
multiple of the cycle time or controller scan time T
c
.