Delta AH500 Programming Manual page 434

AH 5 00 Pr ogr am m ing Ma n ua l
API Instruction code
1203 ENCO
Device X Y M
  
S
 
D
 
n
Symbol:
Explanation:
1. The values of the lower 2
of the lower n bits in D.
2. If there are many bits whose values are 1 in the source device specified by S, the first bit with
the value 1 from the left is processed.
3. When S is a bit device, n is within the range between 1 and 8. When n is 8, the values of the
256 bits is encoded as the values of the 8 bits.
4. When S is a word device, n is within the range between 1 and 4. When n is 4, the values of the
16 bits is encoded as the values of the 4 bits.
5. Generally, the pulse instruction ENCOP is used.
Example 1:
1. When X0.0 is switched from OFF to ON, the instruction ENCO encodes the values of the 8 bits
in M0~M7 as the values of the lower 3 bits in D0, and the values of b15~b3 in D0 become 0.
2. After the instruction ENCO is executed and X0.0 is switched OFF, the data in D is unchanged.
b15
0
6 - 2 6 6
Operand
S, D, n
P
S T C HC D
   
  
  
Pulse instruction 16-bit instruction (7 steps) 32-bit instruction
AH500
S ： Source device
Device in which the encoded values
D ：
are stored
Number of bits whose values are
n ：
encoded
n
bits in the source device specified by S are encoded as the values
M7 M6 M5 M4
0 0 0 0
7 6 5 4
D0
0 0 0 0 0 0 0
T he values of b15~b3 in D0 become 0.
L SM SR E PR
    
  
   
AH500
M3 M2 M1 M0
1 0 0 0
3 2 1 0
4 2
0 0 0 0 0 0 1
Function
Encoder
K 16# "$" DF
 
-
Bit/Word
Word
Word
1
1
b0