Mitsubishi Q00CPU, User Manual

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10
DEVICE EXPLANATION
10.7 File Register (R)
10.7.6 Precautions for using file registers
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10.7.6 Precautions for using file registers
(1) When Basic model QCPU is used
An error will not occur if data are written/read to/from the file register numbers of 64k
points or more.
However, note that undefined data will be stored if data are read from the file
registers.
POINT
The file register file (MAIN.QDR) of the Basic model QCPU cannot be deleted.
However, the file register contents can be deleted.(
Section 10.7(3))
(2) When High Performance model QCPU, Process CPU, Redundant CPU or
Universal model QCPU is used
(a) When an unregistered file register number or a file register outside the
registered capacity is used
1) When the file of the file register is not registered
•For the standard RAM, an undefined data is stored.
•For the memory card, “0
H
” is stored.
2) Writing/reading to/from a file register outside the registered capacity
(points)
•For the standard RAM, an undefined data is stored.
•For the memory card, “0
H
” is stored.
a) High Performance model QCPU, Process CPU, Redundant CPU
Even if data are written/read to/from a file register of which file is not
registered for the CPU module, an error will not occur.
However, the following status will be assumed if data are read from the file
register.
b) Universal model QCPU
If data are written/read to/from a file register of which file is not registered
for the CPU module, OPERATION ERROR (error code: 4101) is reported.
a) High Performance model QCPU, Process CPU, Redundant CPU
An error will not occur even if data are written/read to/from a file register
outside the registered capacity (Points).
However, the following status will be assumed if data are read from the file
register.
b) Universal model QCPU
If data are written/read to/from a file register outside the registered capacity
(points), OPERATION ERROR (error code: 4101) will be reported.