Delta AH500 Programming Manual page 266

AH 5 00 Pr ogr am m ing Ma n ua l
API Instruction code
0216 SCAL
Device X Y M
 
S
1
 
S
2
 
S
3
 
D
Symbol:
Explanation:
1. The operation equation in the instruction: D=(S
2. To obtain the values in S
below first, and then round off the results to the nearest whole digit. The final 16-bit values are
entered into S and S
2
The slope equation: S
The offset equation: S
The output curve is as shown below:
Example 1:
1. Suppose the values in S
instruction SCAL is executed, and the scale value is stored in D0.
6 - 9 8
Operand
S , S , S
P
1 2 3
S T C HC D
  
  
  
  
Pulse instruction 16-bit instruction (9 steps) 32-bit instruction
AH500
： Data source
S
1
： Slope
S
2
： Offset
S
3
D ： Destination device
and S , users have to use the slope equation and the offset equation
2 3
.
3
=[(Maximum destination value–Minimum destination value)÷(Maximum
2
source value–Minimum source value)]×1,000
=Minimum destination value–Minimum source value×S
3
, S , and S are 500, 168, and -4 respectively. When X0.0 is ON, the
1 2 3
, D
Scale value operation
L SM SR E PR
  
  
  
  
AH500
Word
Word
Word
Word
×S )÷1,000+S
1 2 3
Function
K 16# "$" DF
  
  
  

－
÷1,000
2