Omron SYSMAC CP Series Instruction & Reference Manual page 188

2 Instructions
Operation of @--(592)/@--L(593)
In the following example, the content of D100 will be decremented by 1 every cycle as long as CIO 0.00
is ON.
0.00
@− −
D100
The up-differentiated variation is used in the following example, so the content of D101 and D100 will be
decremented by 1 only when CIO 0.00 has gone from OFF to ON.
0.00
@− −L
D100
2-152
Decremented every cycle
while CIO 0.00 is ON.
Wd: D100 Wd: D100
−1
0 0 2 0 0 0 1 F
Decremented only for
up-differentiation.
Wd+1: D101 Wd: D100
−1
0 0 0 1 0 0 0 0
: Execution of @--L(593)
0.00
Decrement
Wd+1: D101 Wd: D100
0 0 0 0 F F F F
Decrement
CP1E CPU Unit Instructions Reference Manual(W483)