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MELSEC-Q
4 SETTINGS AND PROCEDURES FOR OPERATION
When the programmable controller is powered on or the CPU module is reset next
time, communication is performed using the data stored on the EEPROM.
Since the data were stored onto the EEPROM in the protected operation mode in the
above procedure, the QJ71AS92 will start in the protected operation mode at the next
startup. When data were stored onto the EEPROM in the configuration mode, the
QJ71AS92 will start in the configuration mode at the next startup.
Normally, store the data onto the EEPROM in the protected operation mode. (Related
item: Section 4.5 (2))
TIP
The number of writes to the EEPROM is 100,000 times.
If the number of writes exceeds 100,000 times, "F70
H
" is written to the "error code"
of the QJ71AS92 buffer memory.
"F70
H
" indicates a hardware fault. Please consult your local Mitsubishi service
center or representative, explaining a detailed description of the problem.
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