Mitsubishi Electric MELSEC-A0J2H Series Handbook page 121

7
PROGRAMS REPLACEMENT
• Conversion ratio of dedicated instructions
The following table shows the conversion ratio when changing the programmable controller type of
the ACPU dedicated instructions to the QCPU.
Dedicated instruction
(Functional
extension)
Dedicated instruction
(For modules)
Total number of dedicated instructions
Remarks
The automatic conversion is applied to the instructions when equivalent functions and instructions exist
in the change destination programmable controller.
Some instructions are not converted for the following cases.
Refer to Section 7.2 Instruction Conversion to change the program manually.
(1) The change target programmable controller does not have the equivalent functions and
instructions.
(2) Instructions to specified modules cause the change of the module and buffer memory
configuration.
(3) Multiple instructions with the same name and argument exist.
(4) The conversion causes a mismatch in the instructions.
Instruction type
Direct input/output instruction
Structured program instruction
Data operation instruction
I/O operation instruction
Real number processing instruction
Character string processing instruction
Data control instruction
Clock instruction
Extension file register instruction
Program switching instruction
Instruction for PID control
Subtotal
Instruction for data link
Instruction for special function modules
Subtotal
Number of
Number of instructions instructions
instructions applicable for
automatic
conversion
3 3
6 2
6 6
2 1
27 27
25 24
6 6
2 2
7 0
4 0
3 2
91 74
9 5
59 0
68 5
159 78
QnUCPU
Number of
Conversion ratio
requiring
(rough standard)
manual
change
0 100%
4 33%
0 100%
1 50%
0 100%
1 96%
0 100%
0 100%
7 0%
4 0%
1 67%
17 81%
4 56%
59 0%
63 7%
81 49%
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