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8. Function Commands
LD<, AND<, OR<, LD<=, AND<=, OR<=
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{ LD<, AND<, OR<, LD<=, AND<=, OR<= .... Comparison of 16-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
{
{ { { { { {
{
{ { { { { { { {
{
(Note)
{
(Note)
{ {
3
S2S1
Setting data
AND<
S2
S1
S2S1
OR<
S2S1
LD<
<
<
<
Comparison data or
No. of device where
comparison data is
stored.
S2S1
Setting data
AND<=
S2
S1
S2
S1
OR<=
S2S1
LD<=
<=
<=
<=
Comparison data or
No.ofdevicewhere
comparison data is
stored.
Function
(1) 16-bit comparison operation is executed with "A" contact handling.
(2) The comparison operation results will be as follow.
Command Conditions Comparison operation results
S1<S2 Continuity state LD<, AND<, OR<
S1>=S2 Non-continuity state
S1<=S2 Non-continuity state LD<=, AND<=, OR<=
S1>S2 Continuity state
Execution conditions
The execution conditions for LD<, AND<, OR<, LD<=, AND<= and OR<= are as follow.
Command Execution conditions
LD<, LD<= Executed per scan
AND<, AND<= Executed only when previous contact command is ON
OR<, OR<= Executed per scan