Mitsubishi MELSEC QCPU User Manual

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MELSEC-Q/QnA
2 INSTRUCTION TABLES
2.2 How to Read Instruction Tables
The instruction tables found from Section 2.3 to 2.6 have been made according to the following
format:
Table 2.2 How to Read Instruction Tables
Category
Instruction
Symbols
Symbol
Processing Details
Execution
Condition
Number of Basic Steps
Subset
See for
Description
BIN 16-bit
addition
and
subtraction
operations
+ SD
+P
SD
+ S1 S2 D
+P
S1 S2
D
(D)+(S) (D)
(S1)+(S2) (D)
3
4
6-16
6-18
+
+P
+
+P
1
2 3 4 5 6
7
8
Description
1
...........Classifies instructions according to their application
2
...........Indicates the instruction symbol added to the instruction in a program
Instruction code is built around the 16-bit instruction. The following notations are used to
mark 32-bit instructions, instructions executed only at the leading edge of OFF to ON,
real number instructions, and character string instructions:
•
32-bit instruction ......................... The letter "D" is added to the first line of the instruction
Example
+
D+
16-bit instruction 32-bit instruction
•
Instructions executed only at the leading edge of OFF to ON
................................. The letter "P" is added to the end of the instruction
Example
+
+P
Instructions
executed when ON
Instructions executed only at the
leadin
g
ed
g
e of OFF to ON
•
Real number instructions ........... The letter "E" is added to the first line of the instruction
Example
+
E+
Real number instructions
•
Character string instructions ...... A dollar sign “$” is added to the first line of the
instruction
Example
+
$+
Character string instructions
2
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Mitsubishi MELSEC QCPU Specifications

General

Brand	Mitsubishi
Model	MELSEC QCPU
Category	Controller
Language	English