Справочник Пользователя для Mitsubishi Electronics QnUCPU

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APPENDICES

App

 

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23

Appendix 3.3 Instructions

Appendix 3.3.1 Instructions not supported in the Universal model QCPU 

and replacing methods

The Universal model QCPU does not support instructions listed in the TableApp.24. and TableApp.25. 
Instructions need to be replaced using replacing methods described in the tables. (If no instruction in the 
list is used, replacement is not required.)

IX

Index modification of entire 
ladder

Instructions can be replaced using a replacement program.

Appendix 3.3.3 (1)

IXEND

IXDEV

Modification value specification 
in index modification of entire 
ladder

Change the program so that the device offset values 
specified by the IXSET instruction are directly set to the 
index modification table using the MOV instruction.

Appendix 3.3.3 (2)

IXSET

PR

Print ASCII code instruction

• It is recommended to use GOT as an ASCII code display 

device. ASCII codes stored in devices are directly 
displayed as characters on GOT.

• Instructions can be replaced using a replacement 

program.

Appendix 3.3.3 (3)

PRC

Print comment instruction

• It is recommended to use GOT as an ASCII code display 

device.Device comments can be displayed on GOT.

• Comment data can be output to a display device in the 

replacement program of the PR instruction after reading 
data using the reading device comment data instruction 
(COMRD(P)).

CHKST

Specific format failure check 
instruction

Instructions can be replaced using a replacement program.

Appendix 3.3.3 (4)

CHK

CHKCIR

Format change instruction for 
CHK instruction

Failure detection ladder patterns can be changed in a 
replacement program.

CHKEND

PLOW

Program low-speed execution 
registration instruction

• Use the PSCAN instruction instead of this instruction 

when low-speed execution type programs are replaced 
with scan execution type programs.

• No instruction can be used if low-speed execution type 

programs are replaced with fixed scan execution type 
programs.

---

PCHK

Program execution status 
check instruction

Check a program execution status on the Program monitor 
list screen of GX Developer. For details, refer to Section 
6.13.1 in this manual.

---

KEY

Numerical key input instruction

• It is recommended to use GOT as a numeral input device.
• Instructions can be replaced using a replacement 

program.

Appendix 3.3.3 (5)

PLOADP

Load program from memory 
card 

Store all programs to be executed in the program memory. 
The Universal model QCPU can neither add programs to 
the program memory nor change them with other programs 
during RUN. If the capacity of the program memory is not 
enough, store parameters, device comments, and initial 
device values in the program memory into the standard 
ROM or a memory card instead.

---

PUNLOADP

Unload program from memory 
card

PSWAPP

Load + Unload