Mitsubishi Electric MELDAS 60 Series Programming Manual page 80

LDD=, ANDD=, ORD= ... Comparison of 32-bit data (=)
Bit device
X Y M L SM F
S1
S2
LDD=
ANDD=
ORD=
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
S1= / S2
Execution conditions
The execution conditions for LDD=, ANDD= and ORD= are as follow.
Command
LDD=
ANDD=
ORD=
Usable device
Word device
T C D R Z
D= S1
D= S1
D= 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
S2
S2
S2
- 72 -
LDD=, ANDD=, ORD=
Digit
No. of
desig-
Level steps Index
nation
N
3/4
Setting data
Comparison data or
S1
head No. of device
where comparison
S2
data is stored.