FC 167 - Polynomial

The polynomial function code implements a seventh order polynomial.

 

Output = Ax7 + Bx6 + Cx5 + Dx4 + Ex3 + Fx2 + Gx + H

 

Two specifications define the coefficients A through H:

 

The actual value of the coefficient is the product of the mantissa and the power of ten. For example:

A = S16 x 10S17 = Aman x 10Aexp

 

NOTES:

  1. When function code 167 is utilized as a shaping algorithm for analog in/channel (function code 222), its tunable specifications are not adaptable.

  2. When function code 167 is used as a shaping algorithm, it can not at the same time also be used as a logic function because the block output will not respond to the specification S1 input.

  3. Multiple instances and combinations of function code 177 and 222 function blocks may utilize the same function code 167 function block as a shaping algorithm. The function code 167 shaping algorithm function block is not required to be in the same segment as the function code 177 or function code 222 blocks.

 

 

 

 

Outputs:

Blk

Type

Description

N

R

Result of polynomial evaluation

 

 

 

 

Specifications:

Spec

Tune

Default

Type

Range

Description

S1

N

5

I

Note 1

Block address of X input

S2

Y

0.000

R

Full

Mantissa of H coefficient

S3

N

0.000

R

Full

Power of 10 of H coefficient

S4

Y

0.000

R

Full

Mantissa of G coefficient

S5

N

0.000

R

Full

Power of 10 of G coefficient

S6

Y

0.000

R

Full

Mantissa of F coefficient

S7

N

0.000

R

Full

Power of 10 of F coefficient

S8

Y

0.000

R

Full

Mantissa of E coefficient

S9

N

0.000

R

Full

Power of 10 of E coefficient

S10

Y

0.000

R

Full

Mantissa of D coefficient

S11

N

0.000

R

Full

Power of 10 of D coefficient

S12

Y

0.000

R

Full

Mantissa of C coefficient

S13

N

0.000

R

Full

Power of 10 of C coefficient

S14

Y

0.000

R

Full

Mantissa of B coefficient

S15

N

0.000

R

Full

Power of 10 of B coefficient

S16

Y

0.000

R

Full

Mantissa of A coefficient

S17

N

0.000

R

Full

Power of 10 of A coefficient

 

NOTES:

1. Maximum values are:9,998 for the BRC-100, IMMFP11/12 and 31,998 for the HAC