gromit

function generator or polynomial block in PLC5

2 posts in this topic

typical-curve-screenshot.jpg.a94b67c1324How can I create a function generator or polynomial in PLC5/80?
By this I mean I need a eleven point curve that changes the output based on the input.
I do this all the time with DCS logic, but I don't see a "Polynomial" of "Function" block in RSLogix5.
A simple curve might look like this.

input        output    
x1=    0    ...y1=    0
x2=    10    ...y2=    31
x3=    20    ...y3=    58
x4=    30    ...y4=    89
x5=    40    ...y5=    118
x6=    50    ...y6=    147
x7=    60    ...y7=    178
x8=    70    ...y8=    216
x9=    80    ...y9=    238
x10=90    ...y10=   269
x11=100    ...y11= 300

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