Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 355

Increment/Decrement Instructions
3-9-2 DOUBLE INCREMENT BINARY: ++L(591)
Purpose
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
322
Operation of @++(590)
The up-differentiated variation is used in the following example, so the content
of D100 will be incremented by 1 only when CIO 0.00 has gone from OFF to
ON.
0.00
@++
D100
Increments the 8-digit hexadecimal content of the specified words by 1.
++L(591)
Wd
Wd: First word
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Block program areas
OK OK
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
Indirect DM addresses
in binary
Indirect DM addresses
in BCD
Constants
Data Registers
Incremented only for
up-differentiation.
Wd: D100
0 0 1 9
: Execution of @++(590)
CIO 0.00
Increment
Step program areas Subroutines
OK
CIO 0 to CIO 6142
W0 to W510
H0 to H510
A448 to A958
T0000 to T4094
C0000 to C4094
D0 to D32766
@ D0 to @ D32767
*D0 to *D32767
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Section 3-9
Wd: D100
0 0 1 A
Increment
++L(591)
@++L(591)
Not supported
Interrupt tasks
OK
Wd