(From, Fromp, Dfro, Dfrop) - Mitsubishi MELSEC-A Series Programming Manual

7. APPLICATION INSTRUCTIONS
7.6.5 Special module/special block
1-, 2-word data read

(FROM, FROMP, DFRO, DFROP)

Bit device
X Y M
n1
n2
(D) O O
n3
*: K1 to K4 when the FROM(P) instruction is used. K1 to K8 when the DFRO(P) instruction is used.
Function
Available Device
L S B F T C
O O O O O
Read commands
n1
n1
P
FROM
Reads the n3 words of data from the buffer memory address specified by n2 in the
special module/special block specified by n1 and writes the data to the A1FXCPU
beginning with the device number specified by (D).
Buffer memory in
the special module/
special block
n2
AnS
AnN An A1FX
Applicable
AnSH
CPU
X X
Remark
Word (16-bit) device
D W R A0 A1 Z
O O O
n2 (D) n3
n2 (D) n3
Device number
specified by (D)
n3 words
7 − 82
AnU, A2AS
A2USH-S1
A3H
A3V AnA A2USH board
A3M
QCPU-A
(A Mode)
O X X X X
Constant Pointer Level
V K H P I N
O O
O O
O O
Indicates the instruction symbol.
FROM, DFRO
Setting data
Sets the position of the special module
n1 or the special block counted from the
A1FXCPU (0 to 7).
The head address of the special module
n2
or the special block where the data is
read.
The device number of the A1FXCPU
(D)
where the read data is stored.
n3 Number of data to be read
A1FXCPU
MELSEC-A
A2C A3N
A0J2H A73
A52G board
X X X X
M9012 (M9010, M9011)
* O O
n3 points