DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

DVP-ES2/SX2/SS2/SA2/SX2/SE Operation Manual – Programming
API Mnemonic Operands Function
202 SCAL P
Type
Proportional
calculation
Controllers
ES2/EX2 SS2 SA2 SX2
SE
Bit Devices Word devices Program Steps
OP X Y M S K H KnX KnY KnM KnS T C D E F
S 1 * * *
S 2 * * *
S 3 * * *
D *
Operands:
SCAL,SCLAP: 9 steps
PULSE 16-bit 32-bit
ES2/EX2 SS2 SA2
SA2
SA2
SX2 ES2/EX2 SS2 SX2 ES2/EX2 SS2
SE SE SE SX2
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:
1. SCAL instruction performs a proportional calculation according to the internal slope equation.
2. Operation equation in the instruction: D = (S 1 × S 2 ) ÷ 1000 + S 3
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
4. The output curve is shown as the figure:
Destination value
Max. Destination value
D
Min.
source value
Max.
source value
Source value
Min. destination value
3-454