Input/Output Relays [X And Y]; Numbers Of Input/Output Relays - Mitsubishi Electric MELSEC-Q Structured Programming Manual

FXCPU Structured Programming Manual
[Device & Common]
2.2

Input/Output Relays [X and Y]

Some input relay and output relay numbers are secured in the main unit, and others are assigned to
extension equipment according to the connection order.
Because input/output relays are numbered in octal, numeric values such as "8" and "9" do not exist.
2.2.1

Numbers of input/output relays

The tables below show input relay (X) and output relay (Y) numbers. (Numbers are assigned in octal.)
1. FX /FX /FX
3S 3G 3GC
Model name FX
Input
FX PLC
3U
Output
FX (D, DS, DSS)
3UC
PLC
Model name
FX -32MT-
3UC
LT(-2) PLC
Model name
Input
FX PLC
3G
Output
Model name FX
FX 3GC PLC
Model name
Input
FX 3S PLC
Output
*1. A number inside ( ) indicates the number of occupied points.
The difference from the number of effective points indicates unused numbers.
/FX /FX PLCs
3U 3UC
3U -16M FX 3U -32M
X000 to X007 X000 to X017
8 points 16 points
Y000 to Y007 Y000 to Y017
8 points 16 points
Model name FX -16M FX
3UC
X000 to X007 X000 to X017
Input
8 points
Y000 to Y007 Y000 to Y017
Output
8 points
FX -32MT-LT(-2)
3UC
X000 to X017
Input
16 points
Y000 to Y017
Output
16 points
FX -14M FX -24M
3G 3G
X000 to X015
X000 to X007
8 points
14 points (16)
Y000 to Y005 Y000 to Y011
*1
6 points (8) 10 points (16)
3GC -32MT/D(DSS)
X000 to X017
Input
16 points
Y000 to Y017
Output
16 points
FX -10M FX -14M
3S 3S
X000 to X005 X000 to X007
6 points 8 points
Y000 to Y003 Y000 to Y005
4 points 6 points
FX 3U -48M FX 3U -64M FX 3U
X000 to X027 X000 to X037 X000 to X047
24 points 32 points 40 points
Y000 to Y027 Y000 to Y037 Y000 to Y047
24 points 32 points 40 points
-32M FX -64M FX
3UC 3UC 3UC
X000 to X037 X000 to X057
16 points 32 points 48 points
Y000 to Y037 Y000 to Y057
16 points 32 points 48 points
When extended
X000 to X357 256
240 points points
in total
Y000 to Y357
240 points
FX -40M FX -60M
3G 3G
X000 to X043
X000 to X027
*1
24 points
36 points (40)
Y000 to Y017 Y000 to Y027
*1
16 points 24 points
When extended
X000 to X177
128
128 points
points
in total
Y000 to Y177
128 points
FX -20M FX -30M
3S 3S
X000 to X013 X000 to X017
12 points 16 points
Y000 to Y007 Y000 to Y015
8 points 14 points
2 Devices in Detail
2.2 Input/Output Relays [X and Y]
-80M FX 3U -128M When extended
X000 to X077 X000 to X367
64 points 248 points
Y000 to Y077 Y000 to Y367
64 points 248 points
-96M When extended
X000 to X367 256
248 points points
in total
Y000 to Y367
248 points
When extended
X000 to X177
128
*1
128 points
points
in total
Y000 to Y177
128 points
No
extension
1
2
3
256
points
in total
4
5
6
7
37