APPENDICES
Appendix 5 Method of replacing High Performance model QCPU with Universal model QCPU
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(8) SFC
TableApp.55 Precautions for replacement and replacement methods (SFC)
Item
Precautions
Replacement method
Reference
Step transition
monitoring timer
The step transition monitoring timer is not
supported.
Change the program as described in
Appendix 3.1 in the manual in the
Reference column.
Section 4.6 and
Appendix 3.1 in the
"QCPU (Q Mode)/
QnACPU Programming
Manual (SFC)"
SFC operation mode
setting
The periodic execution block setting is not
supported.
Change the program as described in
Appendix 3.2 in the manual in the
Reference column.
• Section 4.7.4 and
• Appendix 3.2 in the
"QCPU (Q Mode)/
QnACPU
Programming Manual
(SFC)"
An operation mode at double block START
cannot be selected. (Fixed to “WAIT”.)
---
Section 4.7.5 in the
"QCPU (Q Mode)/
QnACPU Programming
Manual (SFC)"
An operation mode at transition to active
step cannot be selected. (Fixed to
“TRANSFER”.)
---
Section 4.7.6 in the
"QCPU (Q Mode)/
QnACPU Programming
Manual (SFC)"
SFC program for
program execution
management
SFC programs for program execution
management are not supported.
---
Section 5.2.3 in the
"QCPU (Q Mode)/
QnACPU Programming
Manual (SFC)"
SFC control
instruction
Some SFC control instructions are not
supported.
SFC control instructions not supported in
the Universal model QCPU and
alternative methods are described in
Appendix 5.3.
• Appendix 5.3
• Section 4.4 in the
"QCPU (Q Mode)/
QnACPU
Programming Manual
(SFC)"
SFC comment readout
instruction
The following SFC comment readout
instructions are not supported.
• S(P).SFCSCOMR (SFC step comment
readout instruction)
• S(P).SFCTCOMR (SFC transition
condition comment readout instruction)
---
Section 4.8 in the
"QCPU (Q Mode)/
QnACPU Programming
Manual (SFC)"
Method of SFC
program change
SFC program files cannot be written during
RUN.(Programs in SFC Figure can be
changed by writing files during RUN.)
Execute the Write to PLC function after
changing the Universal model QCPU into
the STOP status.
Section 6.6 in the
"QCPU (Q Mode)/
QnACPU Programming
Manual (SFC)"