7. Basic Commands
PLS, PLF
- 132 -
{ PLS, PLF ... Pulse (1 scan ON)
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
D
{ { { { {
{
{
2
PLS command
PLS
D
Setting data
D
Device No. to
be pulse coded
PLF command
PLF D
PLS
PLF
Function
PLS
(1) The designated device is turned ON for one scan when the PLS command changes from OFF to
ON and is turned OFF in all other cases.
1 scan
PLS M0
X5
X5
M0
OFF
OFF
ON
ON
1 scan
(2) Even if the sequence program is changed from RUN to STOP and then RUN after the PLS
command is executed, the PLS command will not be executed. If the PLS command is ON when
the power is turned ON, the PLS command will be executed.
PLF
(1) The designated device is turned ON for one scan when the PLF command changes from ON to
OFF and is turned OFF in all other cases.
1 scan
PLF
M0
X5
X5
M0
OFF
OFF
ON
ON
1 scan
(2) Even if the sequence program RUN switch is changed from RUN to STOP and then RUN after
the PLF command is executed, the PLF command will not be executed.