Delta DVP-SS2

3. Instruction Set
3-461
API Mnemonic Operands Function
Controllers
ES2/EX2
/EC5
SS2
SA2
SE
SX2
202 SCAL P
Proportional
calculation
Type
OP
Bit Devices Word devices Program Steps
X Y M S K H KnX KnY KnM KnS T C D E F
SCAL,SCLAP: 9 steps
S
1
*
*
*
S
2
*
*
*
S
3
*
*
*
D
*
PULSE
16-bit
32-bit
ES2/
EX2/
EC5
SS2
SA2/
SE
SX2
ES2/
EX2/
EC5
SS2
SA2/
SE
SX2
ES2/
EX2/
EC5
SS2
SA2/
SE
SX2
Operands:
S
1
: Source value S
2
: Slope (unit: 0.001) S
3
: Offset D: Operation result
Range of operands S
1
, S
2
, S
3
: -32768~32767.
Explanations:
SCAL instruction performs a proportional calculation according to the internal slope equation.
Operation equation in the instruction: D = (S
1
× S
2
) ÷ 1000 + S
3
Users have to obtain S
2
and S
3
(decimals are rounded up into 16-bit integers) by using the slope and
offset equations below.
Slope equation: S
2
= [(max. destination value – min. destination value) ÷ (max. source value – min.
source value)] × 1,000
Offset equation: S
3
= min. destination value – min. source value × S
2
÷ 1,000
The output curve is shown as the figure:
D
Min. destination value
Max. Destination value
Destination value
Source value
Max.
s
ource value
Min.
source value