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*1 Since the Universal model QCPU holds the data in the program memory even when the battery voltage drops, the boot
file setting is not necessary.
*2 The Universal model QCPU searches for parameters in order of in the program memory, in the memory card or SD
memory card, and in the standard ROM. Then, the module uses the parameters found first. If parameters exist in the
program memory or the card, the Universal model QCPU does not use the parameters in the standard ROM.
*3 The Universal model QCPU ignores the boot file setting for parameters in the standard ROM.
Settings in the Boot file tab
(No boot file setting for parameters)
Change the setting so that the Universal model QCPU can refer to the
parameters in the memory card or SD memory card, and programs are booted
from the card to the program memory.
• Move the parameters in the standard ROM into the memory card or SD
memory card.
• Make setting so that programs are booted from the memory card or SD
memory card to the program memory in the Boot file tab of the PLC
parameter dialog box.
*3
Settings in the Boot file tab
Change the setting so that the Universal model QCPU can refer to the
parameters in the memory card or SD memory card, and programs and
parameters are booted from the card to the program memory.
• Move the parameters in the standard ROM into the memory card or SD
memory card.
• Make setting so that programs and parameters are booted from the memory
card or SD memory card to the program memory in the Boot file tab of the
PLC parameter dialog box.
*3
Settings in the Boot file tab
Delete all settings for data other than programs and parameters in the boot file
setting.
Since these data can be used even not stored in the program memory, it is not
necessary to transfer them to the program memory. Or, change the setting so
that they are stored in the program memory in the first place.
• Delete all settings for data other than programs and parameters in the Boot
file tab of the PLC parameter dialog box.
• Move the data other than programs and parameters into the program
memory as needed.
Settings in the Boot file tab
(Data other than program and parameter indicate initial
device value, device comment, and label program.)
Setting in High Performance model QCPU
Setting in Universal model QCPU
Setting in the Boot file tab
of the PLC parameter dialog box
Type Transfer from Transfer to
Program Memory card Program memory
Type Transfer from Transfer to
Program Memory card Program memory
Parameter Memory card Program memory
Type Transfer from Transfer to
Data other than
program and
parameter
Memory card Program memory
Type Transfer from Transfer to
Data other than
program and
parameter
Standard ROM Program memory
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