Omron SmartSlice GRT1 Series Operation Manual page 117

Analog Input Units
Top/Valley Hold
98
5. To allocate the Hold Flags (output) in the default connection path, click the
General Tab and select Holding Value from the pull-down menu in the De-
fault Connection Path (Out) Field.
6. Click the Download Button and then click the Reset Button to reset the
Unit.
7. Click the OK Button to exit.
Top/valley hold is used to hold the top and valley values of the analog input
value.
Analog values that fluctuate more than twice the hysteresis value are moni-
tored, and the top or valley values are held. The top or valley value is allo-
cated along with the Top/Valley Detection Timing Flags, which can be used to
check the hold timing.
When the Hold Flag (output) allocated in the OUT Area turns ON, the hold
function starts, refreshing the top or valley value until the Hold Flag turns OFF.
(The last value is held when the Hold Flag turns OFF, but the next time the
Hold Flag turns ON, the hold value is initialized as soon as a top or valley
occurs.) The comparator can be used to compare the top or valley value allo-
cated as analog data. (Refer to details on the comparator function.)
Section 5-4