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MASTER-K10S1
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Special Function Relay : F area
F relay is used as only input operand.
Relay
Name
Description
F000
RUN flag
Set when the PLC is on RUN mode.
F001
PGM flag
Set when the PLC is on PGM(program) mode.
F002
PAU flag
Set when the PLC is on PAU (pause) mode.
F010
Always on
Use as a dummy relay or initialization in user
programs
F011
Always off
F012
1 scan on
On during the first scan after PGM
→
RUN mode
F013
1 scan off
Off during the first scan after PGM
→
RUN mode
F014
Turnover per
each scan
Repeat set / reset according to each scan during
PLC is RUN mode.
F020
~ F02F
Communication
error
information
•Related to SEND, RECV instructions only
•Upper byte : The station No. where error occurred
•Lower byte : error code
•The error code of time out error : h20
•No error : h0000
F030
Serious error
Set in case of internal ROM error, 24V fail error.
F031
Light error
Set in case of WDT error, program error, I/O
combination error, missing END/RET error.
F050
~ F05F
Error code
• h0000 : No error
• h0023 : Code error
• h0014 : I/O error
• h0024 : Missing END error
• h0021 : Parameter error
• h0025 : Missing RET error