Mitsubishi Electric MELDAS C6 Programming Manual page 159

LD>, AND>, OR>, LD>=, AND>=, OR>= .... Comparison of 16-bit data (>, >=)
Bit device
X Y M L F B SB T SM V T
S1
S2
LD>
AND>
OR>
LD>=
AND>=
OR>=
Function
(1) 16-bit comparison operation is executed with "A" contact handling.
(2) The comparison operation results will be as follow.
Command
LD>, AND>, OR>
LD>=, AND>=, OR>=
Execution conditions
The execution conditions for LD>, AND>, OR>, LD>=, AND>= and OR>= are as follow.
Command
LD>, LD>=
AND>, AND>=
OR>, OR>=
8. Function Commands
LD>, AND>, OR>, LD>=, AND>=, OR>=
Usable device
Word device
C D R W SW Z SD K
S2
S1
>
S1
>
S2
> S1 S2
> = S1 S2
> = S1 S2
> =
S1 S2
Conditions
S1>S2
S1<=S2
S1>=S2
S1<S2
Executed per scan
Executed only when previous contact command is ON
Executed per scan
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Con-
Pointer
stant
H P
Setting data
Comparison data or
S1
No. of device where
comparison data is
S2
stored.
Comparison operation results
Continuity state
Non-continuity state
Continuity state
Non-continuity state
Execution conditions
Digit
No. of
desig- Index
steps
nation
3