Appendix 2 Flag List

Appendix 2. Flag List

1)Special relay (F)

This flag is useful to edit user program.

Relay

Function

F0000

RUN mode

F0001

Program mode

 

 

F0002

Pause mode

F0003

Debug mode

F0006

Remote mode

 

 

F0007~F000B

Unused

 

 

F000C

User memory installation

F000D

RTC installation

 

 

F000E

Unused

 

 

F000F

Execution of the STOP instruction

F0010

Always On

F0011

Always Off

 

 

F0012

1 Scan On

 

 

F0013

1 Scan Off

F0014

Scan toggle

 

 

F0015 to F001F

Unused

 

 

F0020

1 step run

F0021

Breakpoint run

 

 

F0022

Scan run

F0023

Coincident contact value run

 

 

F0024

Coincident word value run

 

 

F0025 to F002F

Unused

 

 

F0030

Fatal error

 

 

F0031

Ordinary error

F0032

WDT Error

F0033

I/O combination error

 

 

F0034 to F0038

Unused

 

 

F0039

Normal backup operation

 

 

F003A

RTC data error

F003B

Program editing

 

 

F003C

Program edit error

 

 

F003D to F003F

Unused

Description

Turns on when the CPU in the RUN mode.

Turns on when the CPU in the Program mode

Turns on when the CPU in the Pause mode

Turns on when the CPU in the Debug mode

Turns on when the CPU in the Remote mode

Turns on when a user memory is installed.

Turns on when a RTC module is installed.

Turns on when the STOP instruction is being operated. Always On

Always Off

1 Scan On

1 Scan Off Scan toggle

Turns on when the 1 step run is operated in the Debug mode.

Turns on when the breakpoint run is operated in the Debug mode.

Turns on when the scan run is operated in the Debug mode.

Turns on when the coincident contact run is operated in the Debug mode.

Turns on when the coincident word run is operated in the Debug mode.

Turns on when a fatal error has occurred. Turns on when an ordinary error has occurred. Turns on when a watch dog timer error has occurred. Turns on when an I/O error has occurred.

(When one or more bit(s) of F0040 to F005F turns on)

Turns on when the data backup is normal.

Turns on when the RTC data setting error has occurred. Turns on during program edit while running the program.

Turns on when a program edit error has occurred while running the program.

App2-1

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LG Electronics 120S user manual Appendix 2 Flag List, Special relay F, Always Off