Mitsubishi FX2N-32CCL User Manual page 30

FX -32CCL CC-Link Interface Block
2N
Example in which the ON/OFF status of multiple BFM points are read to the FX PC
FNC78
K0
FROM
Block No. Transfer
Use
example
M0(RY00)
M1(RY01)
M (RY )
B F M #7 B F M #6
b15 b0 b15
R Y R Y R Y R Y R Y R Y
7 F 7 E 7 1 7 0 6 F 6 E
K 8 K 7
M M M M M M
1 27 1 26 1 13 1 12 1 11 1 10
K0 K4M0 K
Number of
Transfer Number of
transfer points
source destinat- transfer
(1 to 8) is
(BFM #0) ion (M*** points
specified.
to M0)
Drive circuit
B F M #5 B F M #4
b0 b15 b0 b15
R Y R Y R Y R Y R Y R Y R Y R Y R Y
6 1 6 0 5 F 5 E 5 1 5 0 4 F 4 E 4 1
K 6 K 5
M M M M M M M M M
9 7 9 6 9 5 9 4 8 1 8 0 7 9 7 8 6 5
Assignment of Buffer Memory (BFM) 5
• By changing the number of transfer points of
FROM instruction within the range of K1 to K8,
BFM #0 to BFM #7 can be read at a time to the
auxiliary relay in the FX PC.
• When the output relays (Y) are specified as the
transfer destination, they are processed by
octal (Yo7 to Yo0) at a time.
B F M #3 B F M #2
b0 b15 b0 b15 b0
R Y R Y R Y R Y R Y R Y R Y R Y R Y
4 0 3 F 3 E 3 1 3 0 2 F 2 E 2 1 2 0
K 4 K 3
F R O M instruction
M M M M M M M M M
6 4 6 3 6 2 4 9 4 8 4 7 4 6 3 3 3 2
B F M .N o.
B F M #1 B F M #0
b0
b15 b15 b0
R Y R Y R Y R Y R Y R Y R Y R Y
1 F 1 E 1 1 1 0 0 F 0 E 0 1 0 0
K 2 K 1
F X P C
auxiliary
M M M M M M M M
3 1 3 0 1 7 1 6 1 5 1 4 1 0 relay
5-4
N um ber of
transfer
points