Mitsubishi MELSEC-A series Programming Manual

3. INSTRUCTION STRUCTURE
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MELSEC-A
3.8.2 Instructions of variable functions
The following instructions vary in content of processing when used in the dedicated
instructions blocks for the AnA, A2AS, AnU, QCPU-A (A Mode) and A2USH board.
For details, refer to the AnSHCPU/AnACPU/AnUCPU Programming Manual
(Dedicated Instructions).
Instruction Normal In the Extension instruction Blocks
PRC Comment output
MELSECNET/MINI-S3 support
instruction
FROM
DFRO
TO
DTO
Special function module
Device memory access
MELSECNET/MINI-S3 support
instruction
LEDA
LEDB
Unusable Dedicated instruction start
LEDC LED comment display Device specification
DXNR NOT exclusive logical sum operation 32-bit constant specification
LEDR LED and annunciator clear Dedicated instruction termination
SUB Unusable 16-bit constant specification
REMARK
The dedicated instruction block of AnA, A2AS, AnU, QCPU-A (A Mode) and A2USH board is as
shown below.
Instructions other than those mentioned above cannot be used in the dedicated instruction
blocks.
X010
LEDA
LEDR
The instructions mentioned above
vary in function if used in this
section.
Specifies an dedicated instruction.

Mitsubishi MELSEC-A series Specifications

General

Brand	Mitsubishi
Model	MELSEC-A series
Category	Controller
Language	English