Generac Power Systems H-100 사용자 설명서

  

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Where:

 

M is the calibration factor

 

A, B, C are polynomial coefficients

 

S is the scaling factor

 

Calibration  = M * 1024

 

Coefficient 3  = C

 

Coefficient 2  = B * 1024

 

Coefficient 1  = A

 

Scaling 

= S * 1024

POLY_1ST_N2:

First order polynomial with 4 coefficients and a scal-
ing factor

 X 

= 

raw_analog

 

(A + BX + CX-1 + DX-2) * S

Where:

 

A, B, C, D are polynomial coefficients

 

S is the scaling factor

 

Coefficient 3  = D

 

Coefficient 2  = C

 

Coefficient 1  = B * 1024

 Calibration = 

A

 

Scaling 

= S * 1024

CFM_SENSOR:

First order polynomial with 4 coefficients and a scal-
ing factor

 

X = raw_analog - learned_offset

 

(A + BX + CX-1 + DX-2) * S

Where:

 

A, B, C, D are polynomial coefficients

 

S is the scaling factor

 

Coefficient 3  = D/32

 

Coefficient 2  = C

 

Coefficient 1  = B * 32768

 

Calibration 

= A * 64

 

Scaling 

= S * 1024

CURRENT:

CAL_SCALE:

Implements a scaling factor and a calibration factor

 

X = M * raw_analog

 X 

* 

S

Where:

 

M is the calibration factor

 

S is the scaling factor

 

Calibration  = M * 1024

 

Scaling 

= S * 1024

GEN_FP_POLY:

Third order polynomial with 4 coefficients

 X 

= 

raw_analog

 

AX3 + BX2 + CX + D

Where:

 

A, B, C, D are 16 bit floating point polynomial 
coefficients

 

Coefficient 3  = A

 

Coefficient 2  = B

 

Coefficient 1  = C

 Calibration = 

D

Amplitudes from 0.00000005961 (256 E-16) to 
1,098,437,885,952 (1023 E+15) are possible with 
this representation with at least 9 significant bits.