Mitsubishi Electric MELDAS 60 Series Programming Manual page 86

LD<, AND<, OR< .... Comparison of 16-bit data (<)
Bit device
X Y M L SM F
S1
S2
LD<
AND<
OR<
Function
(1) 16-bit comparison operation is executed with "A" contact handling.
(2) The comparison operation results will be as follow.
Conditions Comparison operation results
S1<S2
S1>=S2
Execution conditions
The execution conditions for LD<, AND< and OR< are as follow.
Command
LD<
AND<
OR<
Usable device
Word device
T C D R Z
< S1 S1
< S1 S1
< S1 S1
Continuity state
Non-continuity state
Execution conditions
Executed per scan
Executed only when previous
contact command is ON
Executed per scan
Con-
Pointer
stant
K H P
- 78 -
LD<, AND<, OR<
Digit
No. of
desig-
Level steps Index
nation
N
3
Setting data
Comparison data or
S1
head No. of device
where comparison
S2
data is stored.