Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 212)

Publication 1760-UM002B-EN-P - March 2005
4-102 Wiring with Pico GFX-70
Figure 4.42 Pico GFX-70 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
Output
The function block output
QV>
can be assigned the following operands:
• Markers MD, MW, MB
• Analog output QA01
M 48----------------------------[ 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
IMPORTANT
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
.