Mitsubishi Electronics FX2N-5A 사용자 설명서
FX2N-5A Special function block
Example program 9
9-4
9.2
Outline of FROM/TO commands
FX
2N
-5A reads and writes FROM/TO commands of PLC.
FROM/TO commands are outlined as follows.
•
When X010 and X011 are OFF, the transfer is not executed and the data of the transfer
destination does not vary. For details, refer to the FX Series programming manual
destination does not vary. For details, refer to the FX Series programming manual
ΙΙ.
FNC78
FROM
FROM
D
P
X010
Read
command
command
BFM reading
FROM
K2
K26
D120
K2
m1
m2
D •
n
BFM#26 to #27 of special unit No. 2
→ D120 through D121
m1
Special unit or block No. (K0 to K7 numbered from the unit nearest to the basic unit)
Head instructed number (m2=K0 to K31) of buffer memory
It is the head element No. of the transfer destination, and can be designated T, C, D,
KnM, KnY, KnS, V and Z. It can be provided with the modifier of the element No..
KnM, KnY, KnS, V and Z. It can be provided with the modifier of the element No..
Number of transfer points (n=K1 to K32, but n=K1 to K16 for 32-bit command)
m2
D •
n
:
:
:
:
FNC79
TO
TO
D
P
X011
Write
command
command
BFM writing
TO
K2
K0
D0
K16
m1
m2
n
D0 through D15
→ BFM#0 to #15
of Special unit No.2
It is the head element No. of the transfer source, and can be designated T, C, D, KnX,
KnM, KnY, KnS, V, Z, K and H. It can be provided with the modifier of the element
No. by the index.
KnM, KnY, KnS, V, Z, K and H. It can be provided with the modifier of the element
No. by the index.
:
S •
S •
P
m1,m2,n : Same as above
P
An instruction modified to use pulse (single) operation.
D
An instruction modified to use operate in 32 bit operation.