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7-160

FROM(P),DFRO(P)

Buffer memory access instruction

Reading 1-/2-word data from the intelligent function module 

(FROM(P),DFRO(P))

FROM(P),DFRO(P)

Function

(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

––

Command

Command

n3

n3

P

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