121
System Maintenance
Section 3-9
The “RUN” LED on the front face of the NT20 will flash. Flashing cycle is about
1 s (500 ms ON and 500 ms OFF).
• To quit the LED check, press the “EXIT” touch switch. The NT20 will enter
the I/O CHECK MENU.
Checking the Screen Memory
Check the screen memory by using the menu operation from the System
Menu as described below.
Note
When the screen data memory is checked, the memory is initialized and all
the screen data is lost. Check that the screen data has been backed up using
the Support Tool before executing a screen data memory check.
[ I/O CHECK MENU ]
Quit
LED Check
Buzzer
LCD Display
Comm. Check
Touch Switch
Data Memory
Select “LED Check”.
[ SYSTEM MENU ]
Quit
Transmit Mode
Maintenance Mode
Select “Maintenance Mode”.
[ MAINTENANCE MENU ]
Quit
PT Setting
I/O Check
DIP-SW Status
Init. Memory
Memory Switch
Select “I/O Check”.
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 ...