Omron NT20S Operation Manual page 124

System Maintenance
Checking the LED Check the LED by using the menu operation from the System Menu as mentioned
below.
[ SYSTEM MENU ]
Quit
Transmit Mode
Maintenance Mode
[ MAINTENANCE MENU ]
Quit
PT Setting
I/O Check
Init. Memory
Memory Switch
[ I/O CHECK MENU ]
Quit
LED Check
Buzzer
Touch Switch
Data Memory
The "RUN" LED on the front face of the NT20S will flash. The "POWER" LED re-
mains lit.
S To quit the LED check, press the "EXIT" touch switch. The NT20S will enter the
I/O CHECK MENU.
DIP-SW Status
LCD Display
Comm. Check
Section 3-9
Select "Maintenance Mode".
Select "I/O Check".
Select "LED Check".
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