Delta DVP-ES2 User Manual download pdf (Page 573)

100

101

3. Instruction Set

3-457

6. Substitute the above parameters into y = kx + b and the operation instruction can be obtained.

y = kx + b = D = k S

+ b = slope × S

+ offset = slope × S

+ min. destination value – min.

source value × slope = slope × (S

– min. source value) + min. destination value = (S

– min.

source value) × (max. destination value – min. destination value) ÷ (max. source value – min.

source value) + min. destination value

7. If S

> max. source value, S

will be set as max. source value. If S

< min. source value, S

will

be set as min. source value. When the source value and parameters are set, the following

output figure can be obtained:

Min. destination value

Max. Destination value

Destination value

Source value

Max.

source value

Min.

source value

Program Example 1:

1. Assume source value S

= 500, max. source value D0 = 3000, min. source value D1 = 200,

max. destination value D2 = 500, and min. destination value D3 = 30. When X0 = ON, SCLP

instruction executes and the result of proportional calculation will be stored in D10.

2. Equation: D10 = [(500 – 200) × (500 – 30)] ÷ (3000 – 200) + 30 = 80.35. Rounding off the

result into an integer, D10 =80.

SCLP

K500

D10

MOV

K3000

K200

K500

K30

1 2 ... 568 569 570 571 572 573 574 575 576 577 578 ... 701 702

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Delta DVP-ES2 User Manual Page 573

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