122
System Maintenance
Section 3-9
The screen memory check will start.
While the screen memory is checked, the “Memory checking...” message will
be displayed.
• If the memory check has been normally completed, the “Memory is OK”
message will be displayed.
• To quit the memory check, press the “Cancel” touch switch. The NT20 will
enter the I/O CHECK MENU.
• If the “Memory error!” message is displayed, the screen data memory
may have been used up to its service life or there may be a hardware
fault. In that case, initialize the screen data memory and check the mem-
ory again. If the same error message is displayed again, consult the
OMRON Service Center.
3-9-2
Checking the PT Setting
Display the NT20 settings by using the menu operation from the System Menu
as described below.
[ I/O CHECK MENU ]
Quit
LED Check
Buzzer
LCD Display
Comm. Check
Touch Switch
Data Memory
Select “Data Memory”.
TEST
START
[ SCREEN DATA MEMORY CHECK ]
Caution!!
This test will destroy
the Screen Data.
CANCEL
Press “TEST START”.
Pressing “Cancel” will
cancel the memory
check.
[ SYSTEM MENU ]
Quit
Transmit Mode
Maintenance Mode
Select “Maintenance Mode”.
Summary of Contents for NT20
Page 1: ...Programmable Terminal Cat No V091 E1 01 NT20 USER S MANUAL ...
Page 2: ...NT series Programmable Terminal User s Manual Produced March 2007 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 15: ...xvi ...
Page 21: ...xxii EC Directives 6 ...
Page 37: ...16 Before Operating Section 1 6 ...
Page 153: ...132 Transferring the Resource Data Section 3 11 ...
Page 185: ...164 Numeral Setting Section 4 8 ...
Page 267: ...246 Key to Programs Section 6 8 ...
Page 281: ...260 Specifications Appendix A ...
Page 285: ...264 Transporting and Storing PTs Appendix C ...
Page 303: ...282 Function Restrictions Depending on the Support Tool Appendix I ...
Page 307: ...286 Index ...
Page 309: ...288 Revision History ...