Mitsubishi FX2N-32CCL, Руководство пользователя

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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