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LDD<, ANDD<, ORD<
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{ LDD<, ANDD<, ORD< ... Comparison of 32-bit data (<)
Usable device
Bit device Word device
Con-
stant
Pointer Level
X Y M L SM F T C D R Z K H P N
Digit
desig-
nation
No. of
steps
Index
S1
S2
3/4
D< S2
S1
D< S2S1
D< S2S1
ORD<
LDD<
ANDD<
S2
S1
Setting data
Comparison data or
head No. of device
where comparison
data is stored.
Function
(1) 32-bit comparison operation is executed with "A" contact handling.
(2) The comparison operation results will be as follow.
Conditions Comparison operation results
S1<S2 Continuity state
S1>=S2 Non-continuity state
Execution conditions
The execution conditions for LDD<, ANDD< and ORD< are as follow.
Command Execution conditions
LDD< Executed per scan
ANDD< Executed only when previous
contact command is ON
ORD< Executed per scan