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

3. Instruction Set
6. Substitute the above parameters into y = kx + b and the operation instruction can be obtained.
y = kx + b = D = k S 1 + b = slope × S 1 + offset = slope × S 1 + min. destination value – min.
source value × slope = slope × (S 1 – min. source value) + min. destination value = (S 1 – min.
source value) × (max. destination value – min. destination value) ÷ (max. source value – min.
source value) + min. destination value
7. If S 1 > max. source value, S 1 will be set as max. source value. If S 1 < min. source value, S 1 will
be set as min. source value. When the source value and parameters are set, the following
output figure can be obtained:
Destination value
Max. Destination value
D
Min.
source value
1
Max.
source value
Source value
Min. destination value
Program Example 1:
1. Assume source value S 1 = 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.
X0
MOV
K3000
D0
MOV
K200
D1
MOV
K500
D2
MOV
K30
D3
X0
SCLP K500 D0 D10
3-457