Omron Programmable Terminals NT31 NT31C Setup Manual page 216

System Maintenance
Reference: The buzzer will sound in this check regardless of the setting made with the Buzz-
Checking the RUN LED
206
er Sound memory switch.
Check the buzzer by following the menu operation from the System Menu shown
below.
• If the buzzer functions correctly, it will sound continuously. At this time, the
Buzzer Check touch switch will be displayed in reverse video.
• To stop the buzzer while it is sounding, press the Buzzer Check touch switch
again.
Check if the RUN LED functions normally.
Ver 3.10
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Buzzer Check.
Section 6-11