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8 Applied Instructions (Move and Compare)
8.8 XCH / Exchange
157
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
1
Outline
2
Instruction List
3
Configuration of
Instruction
4
How to Read
Explanation of
Instructions
5
Basic Instruction
6
Step Ladder
Instructions
7
Applied Instructions
(Program Flow)
8
Applied Instructions
(Move and
Compare)
9
Applied Instructions
(Arithmetic and
Logical Operation)
10
Applied Instructions
(Rotation and
Shift Operation)
8.8 XCH / Exchange
Outline
This instruction exchanges data between two devices.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
XCH 16 bits Continuous XCH(EN,d1,d2);
XCHP 16 bits Pulse XCHP(EN,d1,d2);
DXCH 32 bits Continuous DXCH(EN,d1,d2);
DXCHP 32 bits Pulse DXCHP(EN,d1,d2);
Variable Description
Data type
16-bit
operation
32-bit
operation
Input
variable
EN Execution condition Bit
Output
variable
ENO Execution state Bit
Device storing data to be exchanged. ANY16 ANY32
Device storing data to be exchanged. ANY16 ANY32
Operand
type
Bit Devices Word Devices Others
System User Digit Specification
System
User
Special
Unit
Index
Constant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
V Z Modifier K H E
""
P
zzzzzz
S1 S1
zz z
zzzzzz
S1 S1
zz z
XCH
EN ENO
d1
d2
XCHP
EN ENO
d1
d2
DXCH
EN ENO
d1
d2
DXCHP
EN ENO
d1
d2