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App - 10
(3) Drive and file
(4) External communication (Service processing)
TableApp.4 Precautions for replacement and replacement methods (Program) (Continued)
Item Precautions Replacement method Reference
File register
To use the file register, capacity setting is
required.
Set the capacity of the file register used in
the PLC file tab of the PLC parameter.
Section 8.1
SFC program
The following settings are required for
using SFC programs.
• Program setting (when both sequence
programs and SFC programs exist.)
• Common pointer No. setting (to exe-
cute the CALL instruction from SFC
programs)
• Set program details in the Program tab
of the PLC parameter dialog box.
• Enter a common pointer number in the
PLC system of the PLC parameter dia-
log box.
TableApp.5 Precautions for replacement and replacement methods (Drive and file)
Item Precautions Replacement method Reference
Boot file setting The boot file setting is not supported.
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.
Move files with the boot setting (from the
standard ROM to the program memory) to
the program memory.
Section 5.1.8
TableApp.6 Precautions for replacement and replacement methods (External communication (Service processing))
Item Precautions Replacement method Reference
Time reserved for
communication pro-
cessing
The time reserved for communication pro-
cessing (SM315/SD315) is not supported.
Set service processing time in the PLC
system tab of the PLC parameter dialog
box.
Section 6.24.1
MC protocol
The following commands cannot specify
monitoring conditions.
• Randomly reading data in units of word
(Command: 0403)
• Device memory monitoring (Command:
0801)
The applicable frame types are as follows:
• QnA-compatible 3C/4C frame
• QnA-compatible 3E frame
•4E frame
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Q Corresponding
MELSEC
Communication
Protocol Reference
Manual