Mitsubishi Electric MELSEC-Q Series User Manual page 116

3 SPECIFICATIONS
MELSEC-Q
(3) The following chart shows the on/off timings of this flag relative to Automatic
backup setting after auto tuning of PID constants (buffer memory address: 63,
95). (For channel 1)
The automatic backup completion status can be checked by checking this flag
upon completion of auto tuning.
The write failure flag (b12, b13) turns off when data of the corresponding channel
is successfully written.
After checking the write flag, always set 0 (OFF) to Automatic backup setting
after auto tuning of PID constants (buffer memory address: 63, 95).
If auto tuning is executed while 1 (ON) is set, even if internal processing of auto
tuning is completed and PID constants are stored, Auto tuning status flag (Xn4,
Xn5) does not turn off and auto tuning is not completed normally.
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