Mitsubishi Electric melsec q00ujcpu User Manual page 558

TableApp.9 Precautions for replacement and replacement methods (Program) (Continued)
Item
The interrupt pointer (I49) for the high-
speed interrupt function is not supported.
Interrupt program Interrupt counter is not supported.
The interrupt pointers (I32 to I40) due to
an error are not supported.
When the SCJ instruction is used in the
Universal model QCPU, the AND SM400
SCJ instruction
(or NOP instruction) needs to be inserted
immediately before the SCJ instruction.
The number of index registers is
increased to 20 for the Universal model
ZPUSH instruction QCPU. The area for saving the data in the
index register with the ZPUSH instruction
is increased as well.
The following file usability setting for each
program is not available.
File usability setting for
• File register
each program
• Initial device value
• Comment
I/O refresh setting for I/O refresh setting for each program is not
each program available.
Usage of a part of the special relay and
special register is different.
SM/SD
A sereis-compatible special relay and
special register are not supported.
(SM1000 to SM1255/SD1000 to SD1255)
Scan time and each processing time are
Processing time
different.
* 1: Even the local device file usability setting is not available for the Q02UCPU, Q03UDCPU, Q04UDHCPU, and Q06UDHCPU if the serial
number (first five digits) is "10011" or earlier.
Precautions
Consider the use of interrupt pointers for
fixed scan interrupt (I28 to I31).
Check the numbers of executions for
interrupt programs on the Interrupt
program monitor list screen of GX
Developer.
Insert the AND SM400 (or NOP
instruction) immediately before the SCJ
instruction when the SCJ instruction is
used.
Increase the save areas used for the
ZPUSH instruction as needed.
*1
When file usability is set, modify the
program as described in Appendix 3.4.
Use the RFS instruction if I/O refresh
setting for each program is required.
Replace the corresponding special relay
and special register as described in
Appendix 3.5.
Using GX Developer, A series-compatible
special relay and special register can be
replaced with the Universal model QCPU-
compatible special relay and special
register. Note, however, that the ones
which are not compatible with the
Universal model QCPU are replaced with
SM1255 and SD1255. Modify programs
as needed.
Modify programs as needed, checking the
processing timing.
Replacement method
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APPENDICES
Reference
Section 6.13.2, 9.2.11
Section 9.11
Section 6.5.1 in the
QCPU Programming
APPEN-
Manual (Common
Instructions)
Section 7.18.8 in the
QCPU Programming
Manual (Common
Instructions)
Section 2.3, Appendix
3.4.4
• Section 2.3
• QCPU Programming
Manual (Common
Instructions)
Appendix 3.5
Chapter 12
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