User Manual

Wiring with easy800
190
08/04 AWB2528-1423GB
Wiring a signal smoothing filter
You can integrate a signal smoothing filter into your circuit
as a coil.
Figure 85: easy800 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
h
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
.