10
DEVICE EXPLANATION
10.7 File Register (R)
10.7.4 File register registration procedure
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(3) Registering the File Register File with the CPU module
If you click on the following check boxes at the "PLC file" tab screen in the "(PLC)
Parameter" dialog box, you must register a file register file with the CPU module:
• Not used (
(1)(a) in this section)
• Use the same file name as the program (
(1)(b) in this section)
Choose [Online] [Write to PLC] on GX Developer to register the file to the CPU
module.
(a) Target memory
Choose the standard RAM, memory card (RAM), or memory card (ROM) from this
list box to specify a memory to store file registers. If you want to use the same
filename as that of a program, store a file register file in the memory specified in
the PLC File sheet of the PLC Parameter dialog box.
(b) Selecting a file register file
If a memory for file registers is selected, a filename of a file register file is
displayed. Select the desired filename of a file register file.
(c) Specifying the capacity and filename
This section is used to specify the capacity of file registers and a filename of the
file register file to be written onto the CPU module (QCPU-side filename).
1) File register capacity of CPU module
The file register capacity can be set in 1 point units.
However, note that the capacity is secured in 256 point units as a file. If file
registers cannot be assigned from ZR0, this will result in a file register file that
contains points from ZR0 to the last point. For example, if the storing range of
file registers are designated from ZR1000 to ZR1791, a file register file will
contain points from ZR0 to ZR1791. Specify file registers from ZR0 because
undefined data is from ZR0 to ZR999. A check on the capacity of file registers
is made in the units of 1k points. The capacity of file registers should be
specified from R0 in the units of 1k points.
(d) Storing a file register file in the CPU module memory
This button is used to store a file register file with the specified number of points in
the specified CPU module memory.
Figure 10.74 File register file registration
