FX
2N
-32CCL CC-Link Interface Block
Assignment of Buffer Memory (BFM) 5
5-9
Details of buffer memory
[BFM #0 to #7 (remote input RX00 to RX7F)]
•
Sixteen remote input points RX
o
F to RX
o
0 are assigned for b15 to b0 of each buffer memory consisting
of 16 bits.
The information to be written to the master unit should be preliminarily transferred from the FX PC to
these buffer memories.
The FX PC can write the contents of bit devices and word devices of the FX PC using TO instructions.
•
In the FX
2N
-32CCL, the remote input point range (RX00 to RX7F) varies depending on the selected
number of stations (1 to 4).
The upper 16 points of the final station are occupied by the CC-Link system as the system area, so can-
not be used as the user area. (
☞
4.2)
Example in which the ON/OFF status of the FX PC is written to BFM #0 b15 to b0
F N C 7 9
T O
K 0
K 0
K 4 M 1 0 0
K 1
B lo ck N o . T ra n s fe r
d e stin a t-
io n (B F M
# 0 )
T ra n s fe r
s o u rc e
(M 1 1 5 to
M 1 0 0 )
N u m b e r o f
tra n s fe r
p o in ts (B F M
# 0 , 1 p o in t)
W rite by T O in stru ctio n (M 1 1 5 to M 1 0 0
→
B F M # 0)
M 11 5
M 10 1
M 10 0
~
(R X 0 0 )
(R X 0 1 )
(R X 0 F )
P ro g ra m d ete rm ining
th e O N /O F F statu s
R X
0 F
R X
0 E
R X
0 D
R X
0 C
R X
0 B
R X
0 A
R X
0 9
R X
0 8
R X
0 7
R X
0 6
R X
0 5
R X
0 4
R X
0 3
R X
0 2
R X
0 1
R X
0 0
b 1 5
b 0
B F M # 0
M
1 15
M
1 14
M
1 13
M
1 12
M
1 11
M
1 10
M
1 09
M
1 08
M
1 07
M
1 06
M
1 05
M
1 04
M
1 03
M
1 02
M
1 01
M
1 00
P C a u xilia ry
relay
T O in stru ctio n
Summary of Contents for FX2N-32CCL
Page 1: ...USER S MANUAL CC Link INTERFACE BLOCK FX2N 32CCL ...
Page 18: ...FX2N 32CCL CC Link Interface Block Specifications 2 2 6 Memo ...
Page 26: ...FX2N 32CCL CC Link Interface Block Setting of Remote Device Stations 4 4 4 Memo ...
Page 39: ...FX2N 32CCL CC Link Interface Block Assignment of Buffer Memory BFM 5 5 13 ...
Page 54: ...FX2N 32CCL CC Link Interface Block Programming Examples 6 6 14 Memo ...
