Exchange - Omron NY532-5400 Reference Manual

Exchange

The Exchange instruction exchanges the values of two variables.
Instruction
Exchange Data Exchange
Variables
Name Meaning
InOut1 and Data to
InOut2 exchange
Out Return
value
Bit strings
OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
InOut1
InOut2
Out OK
Function
The Exchange instruction exchanges the values of data to exchange InOut1 and InOut2. You can spec-
ify enumerations, structures, or structure members for InOut1 and InOut2.
The following figure shows a programming example. The values in variables abc and def are
exchanged.
LD
abc
def
NY-series Instructions Reference Manual (W560)
Name FB/FUN
FUN
I/O Description
In-out Data to exchange
Output Always TRUE
An enumeration, structure, or structure member can also be specified.
Must be same data type as InOut1.
Exchange
EN ENO
InOut1
abc
InOut2
def
Out
Graphic expression
(@)Exchange
EN ENO
InOut1
InOut2
Valid range
Depends on data type.
TRUE only
Integers
ST
Exchange(abc, def);
2 Instruction Descriptions
ST expression
Exchange(InOut1, InOut2);
Out
Unit Default
--- ---
--- ---
Times, durations,
dates, and text strings
2
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