Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 371

Analog Input Terminals
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2. Select the Tab Page for the input where the comparator function is to be
set, and select Comparator under the Function Choice heading.
3. Click the Comparator Tab and set each of the alarm values. The example
here shows the setting for Alarm Trip Point High (HH limit set value).
Section 7-4