Outline
of
FROM/TO
Instructions
Communications between an FX series programmable controller and an FX-1
GM
PGU are controlled
by the FROM/TO instructions
of
the programmable controller. (See page
134
for
applicable program-
mable controllers.)
rM
pro
ml
rn2
n
FROM
I
K2
I
K6
I
Dl20
I
K4
I
Read command Reading from special unit
No.
2
BFM
Y6
to
#9
EFM
read
-
4 word data is transferred
to
programmable controllers Dl20 to Dl 23.
m2
:
m:
n
ml
:
Special unit number or block number
Units such
as
an FX-1 GM, FX-4AD, FX-2AD-PT, FX9DA, and FX-1 HC are numbered
No.
0
to No.
7,
beginning with the one nearest the main unit.
Head designating number (m2
=
KO to K31) of BFM
Z
can be designated.
Head element number of the destination of transfer.
T,
C,
D,
KnY,
KnM,
KnS,
V,
and
(Index registers
V
and
Z
can be used for qualification of element numbers.)
Number of transfer points in units of
1
word with 16-bit instructions. n
=
K1
to
K32
(
In units of 2 words with 32-bit instructions. n
=
K1
to
K16
rM
60'1
rnl
m2
n
TO
I
K2
I
KO
1
Dl12
I
K1
EFM
write
Write
Writing from the programmable controller's
Dl
12 to special unit No. 2 BFM
#O.
ml, m2, n
:
Same
as
above.
:
Head element number of the source of transfer.
T,
C,
D,
KnX,
KnY,
KnM,
KnS,
V,
Z,
K, and H
can be designated. (Index registers
V
and
Z
can be used for qualification of element numbers.)
Notes:
(1)
Putting makes
a
32-bit instruction, and putting makes a pulse execution instruction.
(2)
When
X0
10
or
X0
1
I
is
OFF,
transfer is not executed, and the data in the destination does
Each instruction can be used in
4
combinations.
not change. When
a
pulse execution instruction is used, transfer is executed only when
the instruction drive input state is switched from
OFF
to ON.
-
132
-
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