Ny-Series Instructions Reference Manual (W560 - Omron NY532-5400 Reference Manual

2 Instruction Descriptions
Holding
Processing for the current step is held unconditionally whenever the value Hold is TRUE. While pro-
cessing is held, timing is stopped for all time-related variables.
Timing is started again for these time-related variables when the value of Hold changes to FALSE.
 Timing while Holding
The operations of the time-related variables while processing is held are described in the following
table.
Name
ElapseTime
ProgressTime
LeftTime
StepProgressTime
StepLeftTime
 PresentSP and PredictSP while Holding
While processing is held, PresentSP retains the value from when holding started.
While processing is held, PredictSP has the same value as PresentSP.
 Holding during Waiting
If you hold processing during waiting, waiting is ended. Therefore, the value of Wait changes to
FALSE. When holding is ended, the conditions for waiting are judged again.
Start at PV
You can start processing when the value of PV and the value of PresentSP are equal. If the value of
StartAtPV is TRUE when Enable changes to TRUE, the start at PV operation is used.
Processing is performed as follows for the start at PV operation.
1
The value of PV is obtained.
2
A search is made from step 0 to the last step for the time when the value of PV first equals the
value of PresentSP.
If the value of PresentSP increases from the start of step 0, the search is made only until just
before the value of PresentSP starts to decrease. In the same way, if the value of PresentSP
decreases from the start of step 0, the search is made only until just before the value of Pres-
entSP starts to increase.
3
Processing is started from the point that was found in the above search.
If there is no time in the search range where PV an PresentSP have the same value, processing is
started from step 0.
2-780
Stops timing and retains the value from when holding started. Starts timing again
from the retained value when holding ends.
Operation

NY-series Instructions Reference Manual (W560)