Omron GRT1 - 11-2007 Operation Manual page 214

Temperature Input Units
Top/Valley Hold
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 to execute the download procedure, and then
click the OK Button to return to the Edit Device Parameters Edit Device Pa-
rameters.
7. Click the General Tab and click the Reset Button to reset the Device.
8. Click the OK Button to exit.
Top/valley hold is used to hold the top and valley values of the temperature
input value.
Temperature values that fluctuate more than twice the hysteresis value are
monitored, and the top or valley values are held. The top or valley value is
allocated 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 Output 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
Section 6-4
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