Multiple Cpu Dedicated Instruction; Instructions For Writing To The Cpu Shared Memory Of Host Cpu; Instructions For Reading From The Cpu Shared Memory Of Another Cpu - Mitsubishi Electric MELSEC-Q/L Programming Manual

2.7

Multiple CPU Dedicated Instruction

Instructions for writing to the CPU shared memory of host CPU

Category Instruction
symbol
Write to S.TO
host CPU
shared
SP.TO
memory
TO
TOP
DTO
DTOP
Instructions for reading from the CPU shared memory of another
CPU
Category Instruction
symbol
Read from FROM
other CPU
shared
FROMP
memory
DFRO
DFROP
2 INSTRUCTION TABLES
78
2.7 Multiple CPU Dedicated Instruction
Symbol
S.TO n1 n2 n3 n4 D
SP.TO n1 n2 n3 n4 D
TO n1 n2 S n3
S
TOP n1 n2 n3
S
DTO n1 n2 n3
S
DTOP n1 n2 n3
Symbol
FROM n1 n2 D n3
FROMP n1 n2 D n3
DFRO n1 n2 D n3
DFROP n1 n2 D n3
Processing details
• Writes device data of the host
station to the host CPU shared
memory.
• Writes device data of the host
station to the host CPU shared
memory.
• Writes device data of the host
station to the host CPU shared
memory in 32-bit units.
Processing details
• Reads device data from the
other CPU shared memories,
and stores the data in the host
station.
• Reads device data from the
other CPU shared memories in
32-bit units, and stores the
data in the host station.
Execution Number Subset Reference
condition of basic
steps

5

5

5
Execution Number Subset Reference
condition of basic
steps
5 
5 
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