Filter
Top Products
8. Function Commands
LD<>, AND<>, OR<>
- 160 -
{ LDD<>, ANDD<>, ORD<> .... Comparison of 32-bit data (<>)
Usable device
Bit device Word device
Con-
stant
Pointer
X Y M L F BSB T SM VTCDRWSWZSDKH P
Digit
desig-
nation
Index
No. of
steps
S1
{
{ { { { { {
{
{ { { { { { { { { {
S2
{
{ { { { { {
{
{ { { { { { { { { {
{ {
3/4
S2S1
Setting data
S2
S1
Comparison data or
head No. of device
where comparison
data is stored.
S2
S1
S2S1
D<>
D<>
D<>
ANDD<>
ORD<>
LDD<>
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 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