Mitsubishi MELSEC-A series - Page 30

2. INSTRUCTIONS
2 − 14
MELSEC-A
Table 2.13 Data Transfer Instructions
Classi-
fication Unit
Instruction
Symbol
Symbol Contents of Processing
Execu-
tion Con-
dition
Number of steps
Index
Subset
Applicable CPU Page
BMOV 9
●
!
6-52
BMOVP 9
●
!
6-52
FMOV 9
●
!
6-52
Block
transfer
16 bits
FMOVP 9
●
!
6-52
XCH 5
● ●
!
6-56
16 bits
XCHP
(D1) ↔ (D2)
5
● ●
!
6-56
DXCH 7
● ●
!
6-56
Ex-
change
32 bits
DXCHP
(D1+1, D1) ↔ (D2+1, D2)
7
● ●
!
6-56
(5) Program branch instructions
Table 2.14 Program Branch Instructions
Classi-
fication Unit
Instruction
Symbol
Symbol Contents of Processing
Execu-
tion Con-
dition
Number of steps
Index
Subset
Applicable CPU Page
CJ
Jumps to P** after the input
condition is enabled.
3
●
!
6-58
SCJ
Jumps to P ** beginning with
the next scan after the input
condition is enabled.
3
●
!
6-58
Jump

JMP Unconditionally jumps to P** 3
●
!
6-58
CALL 3
●
!
6-62
CALLP
Executes the subroutine
program at P** after the input
condition is enabled.
3
●
!
6-62
Sub-
routine
call

RET
Returns execution from the
subroutine program to the sequence
program.
1
!
6-62
EI
Enables interrupt program run.
Valid for AnN with M9053 off.
1
Not applicable to A3V, A2C and
A52G.
6-65
DI
Disables interrupt program run.
Valid for AnN with M9053 off.
1
Not applicable to A3V, A2C and
A52G.
6-65
Interrupt
program
call

IRET
Returns execution from the interrupt
program to the sequence program.
1
Not applicable to A3V, A2C and
A52G.
6-65
SUB 3
●
Not applicable to AnA, A2AS,
AnU, QCPU-A (A Mode) and
A2USH board.
6-68
Micro-
comput-
er
program
call

SUBP
Executes the microcomputer
program specified by n.
3
●
Not applicable to AnA, A2AS,
AnU, QCPU-A (A Mode) and
A2USH board.
6-68
*1: For the number of steps when extension devices are used or when index qualification is performed to
bit devices for AnA, A2AS, AnU, QCPU-A (A Mode) and A2USH board, refer to Section 3.8.1.
*2: The
mark in the Index column indicates that index qualification can be performed with the AnA,
A2AS, AnU, QCPU-A (A Mode) and A2USH board only.
*3: The
mark in the Subset column indicates that subset processing can be performed with the A3H,
A3M, AnA, A2AS, AnU, QCPU-A (A Mode) and A2USH board only.
*3
*3
*3
*3
*1
*3
*3
*3
*3
*3
*1