Delta AH500 - Page 269

Chapter 6 Applied Instructions
6-101
API Instruction code Operand Function
0217 D SCLP P
S
1
, S
2
, S
3
, D
Parameter type of scale value
operation
Device
X Y M S T C HC D L SM SR E PR K 16# “$” DF
S
1
           
S
2
         
D
         
Pulse instruction
16-bit instruction (9 steps)
32-bit instruction (9 steps)
AH500
AH500
AH500
Symbol:
S
1
：
Data source Word/Double word
S
2
：
Parameter Word/Double word
D
：
Destination device Word/Double word
Explanation:
1. Only the 32-bit instructions can use the 32-bit counter.
2. The operand S
2
used in the 16-bit instruction is set as follows.
Device number
Parameter
Setting range
S
2
Maximum source value
-32,768~32,767
S
2
+1
Minimum source value
-32,768~32,767
S
2
+2
Maximum destination value
-32,768~32,767
S
2
+3
Minimum destination value
-32,768~32,767
3. The operand S
2
used in the 16-bit instruction occupies four devices.
4. The operand S
2
used in the 32-bit instruction is set as follows.
Device
number
Parameter
Setting range
Integer
Floating-point
number
S
2
, S
2
+1
Maximum source value
-2,147,483,648~
2,147,483,647
The range of 32-bit
floating-point numbers
S
2
+2, S
2
+3
Minimum source value
S
2
+4, S
2
+5
Maximum destination value
S
2
+6, S
2
+7
Minimum destination value
5. The operand S
2
used in the 32-bit instruction occupies eight devices.
6. If the values used in the 32-bit instruction are floating-point numbers, SM658 can be set to ON.
If the values are decimal integers, SM685 can be set to OFF.
7. The operation equation in the instruction: D=[(S
1
–Minimum source value)×(Maximum
destination value–Minimum destination value)]÷(Maximum source value)+Minimum
destination value
8. The operational relation between the source value and the destination value:
y=kx+b
y=Destination value (D)
k=Slope=(Maximum destination value–Minimum destination value)÷(Maximum source
value–Minimum source value)