Mitsubishi Q00JCPU User Manual page 903

APPENDICES
TableApp.46 Precautions for replacement and replacement methods (Program) (Continued)
Item
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 QCPU. The
ZPUSH instruction areas for saving index registers with the
ZPUSH instruction need to be increased
as well.
The following file usability setting for each
program is not available.
File usability setting for
• File register
each program
• Device initial value
• Comment
I/O refresh setting for I/O refresh setting for each program is not
each program available.
Usage of some of the special relays and
special registers is different.
SM/SD
A-compatible special relays and special
registers are not supported.(SM1000 to
SM1255/SD1000 to SD1255)
Scan time and other processing times are
Processing time
different.
Appendix 5 Method of replacing High Performance model QCPU with Universal model QCPU
Precautions
*1
* 1: The local device file usability setting is not available for the Universal model QCPU when the first
five digits of the serial number are "10011" or earlier.
Replacement method
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.
When file usability is set, modify the
program as described in Appendix 5.4.
Use the RFS instruction if I/O refresh
setting for each program is required.
Replace corresponding special relays and
special registers as described in Appendix
5.5.
Using GX Developer, A-compatible special
relays and special registers can be
replaced with the Universal model QCPU-
compatible special relays and special
registers. Note 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.
9
Reference
Section 6.5.1 in the
"QCPU(Q Mode)/
QnACPU Programming
10
Manual (Common
Instructions)"
Section 7.18.8 in the
"QCPU(Q Mode)/
QnACPU Programming
Manual (Common
Instructions)"
11
Section 3.3.6, Appendix
5.4 and Appendix 5.4
Section 3.3.6 in the
"QCPU(Q Mode)/
12
QnACPU Programming
Manual (Common
Instructions)"
Appendix 5.5
Appendix 1 and
Appendix 2
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App
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