Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1354

Processing details
This instruction outputs values according to the function generator pattern consisting of n break points as specified by (s2)
with regard to the input value (E1).
Y
BW
(X , Y )
1 1
E1
The S.FG instruction performs the following operations.
Condition
E1X1
X <E1X (i=2 to n)
i-1 i
X <E1
n
• If the value specified in (n) is 0, no processing is performed.
• If X > X , processing is stopped when n = i - 1. (The subsequent data is ignored.)
i - 1 i
• When there are two or more X
Operation error
Error code
3400H
3402H
3403H
3405H
11 PROCESS CONTROL INSTRUCTIONS
1352
11.4 Correction Operation Instructions
(X , Y )
2 2
(X , Y )
3 3
(X
for the same Y , the Y with smaller i is selected.
i i
Error content
An invalid operation (such as division by zero) is performed.
The value specified by (s1) or (d2) is a subnormal number or NaN (not a number).
An overflow has occurred.
The number of break points (SN) is less than 0 or greater than 48.
, Y )
4 4
X
Output value (BW)
BW=Y1
Y -Y
i i-1
BW= ×(E1-X )+Y
i-1 i-1
X -X
i i-1
BW=Y
n