Filter
Top Products
7-160
FROM(P),DFRO(P)
7.8 Buffer memory access instruction
7.8.1 Reading 1-/2-word data from the intelligent function module
(FROM(P),DFRO(P))
FROM(P),DFRO(P)
Function
FROM
(1) Reads the data in n3 words from the buffer memory address designated by n2 of the
intelligent function module designated by n1, and stores the data into the area starting from
the device designated by .
n1 : Head I/O number of an intelligent function module (BIN 16 bits)
n2 : Head address of data to be read (BIN 16 bits)
: Head number of the devices where the read data will be stored (BIN 16/32 bits)
n3 : Number of data blocks to be read (BIN 16 bits)
Setting
Data
Internal Devices
R, ZR
J\
U\G
Zn
Constants
K, H
Other
U
Bit Word Bit Word
n1
n2 ––
–– ––
n3 ––
Basic
Process
High
performance
Redundant
Universal
Command
Command
n3
n3P
n1
n1
n2
n2
D
D
FROM, DFRO
FROMP, DFROP
indicates an instruction symbol of FROM/DFRO.
D
D
D
CPU module
n3 words
n3 points
n2
Device designated
by
D
Intelligent function module
buffer memory