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Data Movement Instructions Section 3-8
3-8-10 DATA EXCHANGE: XCHG(073)
Purpose Exchanges the contents of the two specified words.
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
S
E
E:
St
St:
XCHG(073)
E1
E2
E1: First exchange word
E2: Second exchange word
Variations Executed Each Cycle for ON Condition XCHG(073)
Executed Once for Upward Differentiation @XCHG(073)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
Area E1 E2
CIO Area CIO 0000 to CIO 6143
Work Area W000 to W511
Holding Bit Area H000 to H511
Auxiliary Bit Area A448 to A959
Timer Area T0000 to T4095
Counter Area C0000 to C4095
DM Area D00000 to D32767
EM Area without bank E00000 to E32767
EM Area with bank En_00000 to En_32767
(n = 0 to C)
Indirect DM/EM
addresses in binary
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
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