Omron Programmable Terminals NT31 NT31C Setup Manual page 222

System Maintenance
Checking Touch
Switches
212
Check whether or not the touch switches function normally by following the
menu operation from the System Menu shown below.
Ver 3.10
To end the check, press the touch switch at the top right corner (NT31: displayed
in reverse video; NT31C: displayed in yellow). The NT31/NT31C will return to
the DEVICE CHECK MENU.
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Touch Switch.
Press the touch switches displayed on the
screen. A touch switch is normal if it is dis-
played in reverse video while pressed.
Section 6-11