324
Increment/Decrement Instructions Section 3-9
Operation of @++L(591)
The up-differentiated variation is used in the following example, so the content
of D101 and D100 will be incremented by 1 only when CIO 0.00 has gone
from OFF to ON.
3-9-3 DECREMENT BINARY: – –(592)
Purpose Decrements the 4-digit hexadecimal content of the specified word by 1.
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
D101 D100 D101 D100
@++L
0.00
CIO 0.00
Wd+1: Wd: Wd+1: Wd:
Increment Increment
Incremented only for
up-differentiation.
: Execution of @++L(591)
D100
− −
(592)
Wd
Wd: Word
Variations Executed Each Cycle for ON Condition – – (592)
Executed Once for Upward Differentiation @– – (592)
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 Wd
CIO Area CIO 0 to CIO 6143
Work Area W0 to W511
Holding Bit Area H0 to H511
Auxiliary Bit Area A448 to A959
Timer Area T0000 to T4095
Counter Area C0000 to C4095
DM Area D0 to D32767
Indirect DM addresses
in binary
@ D0 to @ D32767
Indirect DM addresses
in BCD
*D0 to *D32767
Constants ---
Data Registers DR0 to DR15
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