Yaskawa MP900 Series Ladder Programming Manual User Manual
Page 243
5.8 DDC Instructions
5.8.10 Inverse Function Generator (IFGN)
5-174
[ b ] Parameter Table Configuration for IFGN Instruction with Double-length Integers or Real Numbers
If input value Y is a double-length integer, the IFGN instruction will be for double-length integers. If input value Y is a
real number, the IFGN instruction will be for real numbers.
Create the parameter table as shown below.
For the IFGN instruction, make sure to set the data so that Y
1
< Y
2
<
⋅⋅⋅ < Y
N
, regardless of whether the parameter table is for
integer data, double-length integer data, or real number data.
Address
Data
Type
Symbol
Name
0
W
N
Number of pairs of X and Y
1
W
–
Reserved.
2
L/F
X
1
Data X
1
4
L/F
Y
1
Data Y
1
6
L/F
X
2
Data X
2
8
L/F
Y
2
Data Y
2
:
:
:
:
4N - 2
L/F
X
N
Data X
N
4N
L/F
Y
N
Data Y
N
X
1
X
2
X
3
Y
1
Y
2
Y
3
…
…
X
N
Y
N
Function generated by setting X
1…N
,
Y
1…N
in the parameter table.
INFO