Delta DVP-ES2 User Manual download pdf (Page 570)

100

101

DVP-ES2/SX2/SS2/SA2/SX2/SE Operation Manual – Programming

3-454

API

Mnemonic Operands Function

202

SCAL P

Proportional

calculation

Controllers

ES2/EX2 SS2 SA2

SX2

Bit Devices Word devices Program Steps

Type

X Y M S K H KnX KnY KnM KnS T C D E F

* * *

D *

SCAL,SCLAP: 9 steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

: Source value S

: Slope (unit: 0.001) S

: Offset D: Operation result

Range of operands S

, S

: -32768~32767.

Explanations:

1. SCAL instruction performs a proportional calculation according to the internal slope equation.

2. Operation equation in the instruction: D = (S

× S

) ÷ 1000 + S

3. Users have to obtain S

and S

(decimals are rounded up into 16-bit integers) by using the

slope and offset equations below.

Slope equation: S

= [(max. destination value – min. destination value) ÷ (max. source value –

min. source value)] × 1,000

Offset equation: S

= min. destination value – min. source value × S

÷ 1,000

4. The output curve is shown as the figure:

Min. destination value

Max. Destination value

Destination value

Source value

Max.

source value

Min.

source value

1 2 ... 565 566 567 568 569 570 571 572 573 574 575 ... 701 702

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Delta DVP-ES2 User Manual Page 570

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