Maple Systems MAPware-7000 - Manual (Page 172)

MAPware-7000 Ladder Logic Guide 164
1010-1041 rev. 00
Example:
When B010 is ON, the FG instruction finds the function value f(x) for x = XW004, and stores the
result in D0100.
The function f(x) is defined by 2 * 4 = 8 parameters stored in D0600 to D0607. In this example,
these parameters are set at the first scan.
Parameter table
4 registers for x parameters and subsequent 4 registers for corresponding f(x)
parameters plotted on a graph:
The Function Generator instruction interpolates f(x) value for x based upon the
parameters of (x
n
, y
n
). For example, if XW04 is 1500 (x = 1500), the result 1405 (f(x) =
1405) is stored in D0100.