Special Function Module 1-, 2-Word Data Read (From, Fromp, Dfro, Dfrop) - Mitsubishi MELSEC-A Series Programming Manual

7. APPLICATION INSTRUCTIONS
7.6.1 Special function module 1-, 2-word
data read (FROM, FROMP, DFRO,
DFROP)
Bit device
X Y M
n1
n2
*1 *1 *1
(D) O O O O
n3
*1: Bit devices cannot be used with the An and A3H CPUs.
*2: K1 to K4 when the FROM(P) instruction is used. K1 to K8 when the DFRO(P) instruction is used.
Functions
Available Device
L S B F T C
*1 *1 *1 *1
O O O O O
Read commands
n1
n1
P
FROM
Reads the data of "n3" words, which start at the address specified at "n2" of buffer
memory inside the special function module specified at "n1", and stores the data into
devices which begin with the device specified at (D).
Special function module
buffer memory
n2
AnS
AnN An A1FX
Applicable
AnSH
CPU
O O
Remark
Word (16-bit) device
D W R A0 A1 Z
O O O
n2 (D) n3
n2 (D) n3
Device specified at (D)
n3 words
7 − 65
AnU, A2AS
A2USH-S1
A3H
A3V AnA A2USH board
A3M
QCPU-A
(A Mode)
X O O O O
Constant Pointer
Level
N
V K H P I
K1
O O
to
K4
O O
O O
Indicates the instruction symbol.
FROM, DFRO
Setting data
Head I/O number of special function
module
n1 Specified with the upper two digits
when the head I/O number is
expressed in 3 hexadecimal digits.
n2 Head address of data to be read
Device number which will store read
(D)
data
n3 Number of data to be read
CPU module
MELSEC-A
A2C A3N
A0J2H A73
A52G board
O X O O
M9012 (M9010, M9011)
O O
K1
to
K8
n3 points