Inputs and Outputs
The following table provides a general overview of the inputs and outputs of the controllers of
the MELSEC FX family.
Device
Device identifier
Device type
Possible values
Device address format
Number of devi-
ces and addres-
ses (depends on
controller base
unit type)
With expansion modules, the total number of inputs can be increased to max. 84 (X123) and the total number of
outputs can be increased to max. 64 (X77). However, the sum of all inputs and outputs cannot exceed 128.
With expansion modules, the total number of inputs can be increased to max. 128 (X177) and the total number of
outputs can be increased to max. 128 (Y177). However, the sum of all inputs and outputs cannot exceed 128.
4 – 2
Inputs
X
Bit device
0 or 1
Octal
6 (X00–X05)
8 (X00–X07)
FX
1S
12 (X00–X07, X10, X11, X12, X13)
16 (X00–X07, X10–X17)
8 (X00–X07)
14 (X00–X07, X10–X15)
FX
1N
24 (X00–X07, X10–X17, X20–X27)
36 (X00–X07, X10–X17, X20–X27,
X30–X37, X40, X41, X42, X43)
8 (X00–X07)
16 (X00–X07, X10–X17)
24 (X00–X07, X10–X17, X20–X27)
32 (X00–X07, X10–X17, X20–X27,
X30–X37)
FX
2N
40 (X00–X07, X10–X17, X20–X27,
X30–X37, X40–X47)
64 (X00–X07, X10–X17, X20–X27,
X30–X37, X40–X47, X50–X57,
X60–X67, X70–X77)
8 (X00–X07)
16 (X00–X07, X10–X17)
32 (X00–X07, X10–X17, X20–X27,
FX
2NC
X30–X37)
48 (X00–X07, X10–X17, X20–X27,
X30–X37, X40–X47, X50–X57)
8 (X00–X07)
14 (X00–X07, X10–X15)
FX
3G
24 (X00–X07, X10–X17, X20–X27)
36 (X00–X07, X10–X17, X20–X27,
X30–X37, X40–X43)
FX
16 (X00–X07, X10–X17)
3GC
14 (X00–X07, X10–X15)
FX
3GE
24 (X00–X07, X10–X17, X20–X27)
6 (X00–X05)
8 (X00–X07)
FX
3S
12 (X00–X07, X10, X11, X12, X13)
16 (X00–X07, X10–X17)
Devices in Detail
Outputs
Y
4 (Y00–Y03)
6 (Y00–Y05)
8 (Y00–Y07)
14 (Y00–Y07, Y10–Y15)
6 (Y00–Y05)
10 (Y00–Y07, Y10, Y11)
16 (Y00–Y07, Y10–Y17)
24 (Y00–Y07, Y10–Y17, Y20–Y27)
8 (Y00–Y07)
16 (Y00–Y07, Y10–Y17)
24 (Y00–Y07, Y10–Y17, Y20–Y27)
32 (Y00–Y07, Y10–Y17, Y20–Y27,
Y30–Y37)
40 (Y00–Y07, Y10–Y17, Y20–Y27,
Y30–Y37, Y40–Y47)
64 (Y00–Y07, Y10–Y17, Y20–Y27,
Y30–Y37, Y40–Y47, Y50–Y57,
Y60–Y67, Y70–Y77)
8 (Y00–Y07)
16 (Y00–Y07, Y10–Y17)
32 (Y00–Y07, Y10–Y17, Y20–Y27,
Y30–Y37)
48 (Y00–Y07, Y10–Y17, Y20–Y27,
Y30–Y37, Y40–Y47, Y50–Y57)
6 (Y00–Y05)
10 (Y00–Y07, Y10–Y11)
16 (Y00–Y07, Y10–Y17)
24 (Y00–Y07, Y10–Y17, Y20–Y27)
16 (Y00–Y07, Y10–Y17)
10 (Y00–Y07, Y10–Y11)
16 (Y00–Y07, Y10–Y17)
4 (Y00–Y03)
6 (Y00–Y05)
8 (Y00–Y07)
14 (Y00–Y07, Y10–Y15)
MITSUBISHI ELECTRIC