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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= S2S1
Setting data
S2
Comparison data or
head No. of device
where comparison
data is stored.
S1
LDD=
D=
S2S1
D=
S2
S1
ORD=
ANDD=
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