Omron NT20S Operation Manual page 122

System Maintenance
Checking the LCD
[ RS-232C I/F INPUT CHECK ]
EXIT
When the check is finished, press the EXIT touch switch. The NT20S will enter the
RUN mode.
Check the NT20S LCD 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
S The LCD displays dots (segments of the screen) line by line beginning with the
top left corner. If all the dots are displayed normally, the NT20S will enter the I/O
CHECK MENU after all the dots have been turned off.
S To cancel the LCD indication check, press any touch switch (anywhere) on the
screen. The I/O Check Menu will be redisplayed.
DIP-SW Status
LCD Display
Comm. Check
Section 3-9
The data received from the con-
nected Host are displayed in
hexadecimal numbers.
Select "Maintenance Mode".
Select "I/O Check".
Select "LCD Display".
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