Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 127

■Error flag (b2)
This flag turns ON when an error other than a hardware error occurs.
After an error occurs and the error code of the error is stored in 'Latest error code' (Un\G0), this flag turns ON.
"Error flag"
OFF
(Un\G398, b2)
"Latest error code"
(Un\G0)
"Error reset command"
OFF
(Un\G399, b2)
Temperature control module will implement
■Hardware error flag (b3)
This flag turns ON when a hardware failure occurs in the temperature control module.
■Auto tuning status (b4 to 7)
This flag turns ON when auto tuning is performed for each channel.
This signal is ON during the auto tuning, and automatically turns OFF at the completion of auto tuning.
■Set value backup completion flag (b8)
Turning OFF→ON 'Set value backup command' (Un\G399, b8) starts the writing of the data in the buffer memory to the non-
volatile memory.
After the data writing is completed, this flag turns ON. Turning ON→OFF 'Set value backup command' (Un\G399, b8) also
turns OFF this flag.
"Set value backup command"
(Un\G399, b8)
Non-volatile memory write status
"Set value backup completion flag"
(Un\G398, b8)
■Default value write completion flag (b9)
Turning OFF→ON 'Default setting registration command' (Un\G399, b9) starts the writing of the default value of the
temperature control module to the buffer memory.
After the default value writing is completed, this flag turns ON.
■Set value backup failure flag (b10)
Turning OFF→ON 'Set value backup command' (Un\G399, b8) writes the data in the buffer memory to the non-volatile
memory. This flag turns ON when the writing to the non-volatile memory has failed.
ON
0H Error code
ON
OFF
Before memory write Writing to memory
OFF
Implemented by the program
Temperature control module will implement
ON
Memory write complete
ON
Appendix 4 Buffer Memory Areas
0H
APPX
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A