Mitsubishi Electric MELSEC FX3U Programming Manual page 174

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
Outline
1. Instruction format
1) The applied instruction number (FNC No.) and instruction mnemonic are indicated. The table below
shows the meaning of simplified expression.
Mark
FNC 12
No.
Instruction name
MOV
FNC 12
No.
D Instruction name
MOV
FNC 12
No.
D Instruction name
MOV
FNC 12
No.
D Instruction name
MOV
FNC 12
No.
D Instruction name
MOV
FNC 12
No.
D Instruction name
MOV
FNC 12 No.
D Instruction name MOV
2. Set data
The contents of devices that can be specified as operands in instructions and available data types are
described below:
1) Contents
The contents of operands in each instruction are described below.
2) Indexing of the source and destination
In operands to which " " is added such as
Operands not allowing indexing are expressed as
3) Data types
- Bit
- 16-bit BIN
- 32-bit BIN
- 64-bit BIN
- 16/32-bit BIN
- 32/64-bit BIN
- 4-digit BCD
- 8-digit BCD
- 4/8-digit BCD
- Character string
- Character string (only ASCII)
- Real number (binary)
- Real number (decimal)
172
Dotted lines on the upper left and lower left sides indicate an independent
instruction not associated with the 16-bit or 32-bit type.
P
Continuous lines on the upper left side indicates that 16-bit type is available.
"D" on the lower left side indicates that the 32-bit type is available.
P
Dotted lines on the lower left side indicate that the 32-bit type does not exist.
Continuous lines on the upper left side indicate that only the 16-bit type is
P
available.
Dotted lines on the upper left side indicate that the 16-bit type does not exist.
"D" on the lower left side indicates that only the 32-bit type is available.
P
Continuous lines on the upper right side indicate that the continuous operation
type is available. "P" on the lower right side indicates that the pulse operation
P
type is available.
Dotted lines on the lower right side indicate that the pulse operation type does
not exist. Continuous line on the upper right side indicate that only the
P
continuous operation type is available.
" "
on the upper right side indicates that the contents of the destination
change in every operation cycle when the continuous operation type is used.
P When operation should be executed only during the driving of an instruction,
use the pulse operation type indicated by "P" on the lower right side.
: Bit device
: 16-bit binary code
: 32-bit binary code
: 64-bit binary code
: 16-bit or 32-bit binary code
: 32-bit or 64-bit binary code
: 4-digit (16-bit) BCD code
: 8-digit (32-bit) BCD code
: 4-digit (16-bit) or 8-digit (32-bit) BCD code
: Character code such as ASCII code and shift JIS code
: ASCII code
: Binary floating point
: Scientific notation
6 What to Understand before Programming
6.1 How to Read Explanation of Instructions
Description
and , indexing is available.
S S
1
and .
S S
1
Applicable
instruction
(example)
WDT(FNC 07)
MOV(FNC 12)
CJ(FNC 00)
HSCS(FNC 53)
CMP(FNC 10)
MTR(FNC 52)
INC(FNC 24)