Delta AH500 Programming Manual page 293

API Instruction code
0306 D XCH
Device X Y M
 
S
1
 
S
2
Symbol:
Explanation:
1. The data in the device specified by S
2. Only the 32-bit instructions can use the 32-bit counter.
Example 1:
When X0.0 is switched from OFF to ON, the data in D20 is exchanged with the data in D40.
Example 2:
When X0.0 is switched from OFF to ON, the data in D100 is exchanged with the data in D200.
Operand
S , S
P
1 2
S T C HC D
   
   
Pulse instruction 16-bit instruction (5 steps) 32-bit instruction (5 steps)
AH500
Data which will be
：
S
1
exchanged
Data which will be
：
S
2
exchanged
is exchanged with the data in the device specified by S
1
D 20 1 20
D 40
Ch a pt er 6 Ap p l i ed I ns t r uc t i ons
Exchanging the data
L SM SR E
  
  
AH500
Before the instruction
is executed:
4 0
Before the instruction
is executed:
D 10 0 9
D 10 1 2 0
D 20 0 8
D 20 1 4 0
Function
PR K 16# "$" DF


AH500
Word/Double word
Word/Double word
After the instruction
is executed:
D 20
4 0
1 20 D 40
After the instruction
is executed:
D 10 0
8
4 0 D 10 1
D 20 0
9
D 20 1
2 0
6 - 1 2 5
.
2