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3 SPECIFICATION
MELSEC-QnA
Table 3.3 I/O signal list
Signal direction: programmable controller CPU master/local module Signal direction: programmable controller CPU master/local module
Availability Availability
Input
number
Signal name
Master
station
Local
station
Output
number
Signal name
Master
station
Local
station
X(n+1)0 Y(n+1)0
X(n+1)1 Y(n+1)1
X(n+1)2 Y(n+1)2
X(n+1)3 Y(n+1)3
X(n+1)4 Y(n+1)4
X(n+1)5 Y(n+1)5
X(n+1)6 Y(n+1)6
X(n+1)7 Y(n+1)7
X(n+1)8 Y(n+1)8
X(n+1)9 Y(n+1)9
X(n+1)A Y(n+1)A
X(n+1)B Y(n+1)B
X(n+1)C Y(n+1)C
X(n+1)D Y(n+1)D
X(n+1)E Y(n+1)E
X(n+1)F
(Prohibited to use) –
–
Y(n+1)F
(Prohibited to use) – –
: Usable : Prohibited to use
Important
The output signals that are prohibited to use as shown in Table 3.3 are used by the system, so
users may not use them. When a user does use (on/off) these signals, a normal operation
cannot be guaranteed.