681
FROM, FROMP, DFRO, DFROP
9
2
3
4
4
6
7
8
9.2 Reading from the CPU Shared Memory of another CPU
9.2.1 FROM, FROMP, DFRO, DFROP
When Basic model QCPU, Universal model QCPU is used
n1 : Head I/O number of the reading target CPU module (BIN 16 bits)
• Basic model QCPU: 3E0
H
to 3E2
H
• Universal model QCPU: 3E0
H
to 3E3
H
n2 : Head address of data to be read (BIN 16 bits)
•Basic model QCPU: 0 to 512
• Universal model QCPU: 0 to 4095, 10000 to 24335*
1
: Head number of the devices where the read data is stored (BIN 16 bits)
n3 : Number of read data (BIN 16 bits)
•Basic model QCPU: FROM(P): 1 to 512, DFRO(P) : 1 to 256
•Universal model QCPU: FROM(P): 1 to 14336*
1
, DRRO(P) : 1 to 7168*
1
*1: The setting range varies depending on the auto refresh setting range of the multiple CPU high speed communication function.
Function
FROM
(1) Reads the data of n3 words from the CPU shared memory address designated by n2 of the CPU module designated by
n1, and stores that data into the area starting from the device designated by .
(a) CPU shared memory address of the Basic model QCPU
9.2.1 FROM, FROMP, DFRO, Reading from other CPU shared memory
DFROP
9.2.1
FROM, FROMP, DFRO, DFROP
• Q00CPU, Q01CPU: The serial number (first five digits) is
"04122" or later.
• High Performance model QCPU: Function version B or later
Setting
Data
Internal Devices
R, ZR
J\
U\G
Zn
Constants
K, H
Other
U
Bit Word Bit Word
n1 ––
n2 –– ––
–– –– –– ––
n3 –– ––
Redundant
LCPU
Basic
Process
High
performance
Universal
Ver. Ver.
Command
Command
n3
n3
n1
n1
n2
n2
D
D
FROM, DFRO
FROMP, DFROP
P
indicates an instruction symbol of FROM/DFRO.
D
D
D
Device memory
CPU shared memory of
the designated CPU (n1)
n3
Reads the
data of n3
words
n2
D
0(0
H
)
96(60
H
)
192(C0
H
)
511(1FF
H
)
Read designation
permitted area
Host CPU operation information area
CPU shared memory address
System area
Host CPU refresh area
*2
User free area
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