Delta AS Series Programming Manual page 416

API Instruction code
0306 D XCH
Device X Y M

S
1

S
2
Data
type

S
1

S
2
Symbol
Explanation
1. This instruction exchanges the data in the device specified by S
2. Only the 32-bit instructions can use the 32-bit counter, but not the device E.
Example 1
When X0.0 is switched from OFF to ON, the instruction exchanges the data in D20 with the data in D40.
Example 2
When X0.0 switches from OFF to ON, the instruction exchanges the data in D100 with the data in D200.
Operand
S , S
P
1 2
S T C HC
  
  
 
 
Pulse instruction
： Data to exchange
S
1
： Data to exchange
S
2
Before the instruction
is executed:
D 20 1 20
D 40 4 0
Before the instruction
is executed:
D 10 0
D 10 1
D 20 0
D 20 1
Ch a pt er 6 Ap p l i ed I ns t r uc t i ons
D FR SM SR




16-bit instruction
AS AS
with the data in the device specified by S
1
After the instruction
is executed:
D 20
4 0
1 20 D 40
After the instruction
is executed:
9
8
2 0
4 0
8
9
4 0
2 0
Function
Exchanging data
E K 16# "$"


32-bit instruction
AS
.
2
D 10 0
D 10 1
D 20 0
D 20 1
6 - 1 3 7
F
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