Toshiba PROSEC T1-16S User Manual page 162

7. Instructions
FUN 061 DFL
Expression
Input [ A DFL B
Function
When the input is ON, this instruction calculates the following formula to perform digital filtering for
input data A by filter constant by B, and stores the result in C.
y 1 FL x FL y
n n
Here; x is input data specified by A
n
FL is filter constant, 1/10000 of data specified by B (data range: 0 to 9999)
y is output data to be stored in C
n
y is output data at last scan
n-1
This instruction is useful for filtering the analog input signal. C+1 is used for internal work data.
Execution condition
Input
OFF No execution
ON Execution (FL is limited within the range of 0 to
9999)
Operand
Name
X
A Input data
B Filter constant
C Output data
Example
The filtered data of XW04 is stored in D0110. (D0111 is used for internal work data)
When D0100 value is small
XW04
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T1-16S User's Manual
Digital Filter
C ] Output
n 1
Operation
Device
Y R S T. C. XW YW RW SW T
D0110
Time
Output
OFF
ON
Register
C D I J
When D0100 value is large
XW04
D0110
6F3B0253
Constant Index
K
Time