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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
• The starting I/O number (hexadecimal) of the intelligent functional module is the
two higher digits of the 3-digit expression of the starting address of the intelligent
functional module’s I/O addresses viewed from the Q/QnA PLC CPU.
(a) In case of a single-slot module
PL
C C
P
U
S
pec
ia
l f
unct
ion
m
odul
e
32 poi
nt
s
000
01F
to
• • • • • • Since the starting address is 000
H
, the special function module
number is "00
H
."
(b) In case of a module where the first half slot is allocated as a vacant slot (e.g.,
AD72, A84AD)
PL
C C
P
U
S
pec
ia
l f
unct
ion
m
odul
e
32 poi
nt
s
010
02F
• • • • • • Since the starting address is 010
H
, the special function module
number is "01
H
."
000
00F
V
a
ca
n
t sl
o
t 16 poi
nt
s
to
to
(c) In case of a module where the second half slot is allocated as a vacant slot
(e.g., A61LS)
PL
C C
P
U
020
02F
S
pec
ia
l f
unct
io
n
m
o
du
le
32 poi
nt
s
000
01F
V
a
ca
n
t sl
o
t 1
6
poi
nt
s
• • • • • • Since the starting address is 000
H
, the special function module
number is "00
H
."
to
to
