Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 372

Analog Input Terminals
Off-wire Detection
4. To set the hysteresis value, input the desired value in the Hysteresis field.
Note The hysteresis value set for the comparator function is also used by the
top/valley hold function.
5. To set the OFF delay function, input the desired value in the Comparator
Off Delay field.
6. Return to the General Tab, click the Download Button, and then click the
Reset Button to reset the Unit.
7. Click the OK Button and exit the window.
When a disconnection occurs in an analog input line (voltage input or current
input), the Off-wire Detection Flag turns ON for each input that is enabled in
the number of AD conversion points. The Off-wire Detection Flags are
included in the Analog Status Flags.
When Off-wire Detection is enabled, the value of AD conversion data is set to
7FFF hex. When the input returns to a value within the range that can be con-
verted, the Off-wire Detection function will automatically be turned OFF, and
normal data conversion will occur.
Section 7-4
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