Omron GRT1 - 11-2007 Operation Manual page 216

Temperature Input Units
Hysteresis Setting
4. Select the tab page for the input where top/valley hold is to be set, and se-
lect the Top/Valley Hold Check Box in the Function Choice Area.
5. To allocate the Hold Flag (output) in the default connection path, click the
General Tab, and select Holding Value from the pull-down menu in the
Default 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 Window.
7. Return to the General Tab Page, click the Download Button, and then click
the Reset Button to reset the Unit.
8. Click the OK Button to exit.
The hysteresis value can be set using the Configurator to prevent detection of
top or valley values that occur due to minor fluctuations in the temperature
input value. This will cause the start of data holding to be delayed after the
actual top or valley value occurs, as shown in the following diagram.
Section 6-4
195