List Of I/O Signals - Mitsubishi Electric MELSEC-Q Series User Manual

3.4

List of I/O signals

This section lists the I/O signals for a CPU module.
The device X is an input signal from a master/local module to a CPU module. The device Y is an output signal from a
CPU module to a master/local module.
"n" in the table below represents the start I/O number of the master/local module.
When the start I/O number of the master/local module is 0030:
Ex.
Xn0 to X(n + 1)F  X30 to X4F
Yn0 to Y(n + 1)F  Y30 to Y4F
Signal direction: Master/local module
Input No.
Xn0
Xn1
Xn2
Xn3 Other station data link status
Xn4
Xn5
Xn6
Xn7
Xn8
Xn9
XnA
XnB
XnC
XnD
XnE
XnF
X(n+1)0
X(n+1)1
X(n+1)2
X(n+1)3
X(n+1)4
X(n+1)5
X(n+1)6
X(n+1)7
X(n+1)8
X(n+1)9
X(n+1)A
X(n+1)B
X(n+1)D
X(n+1)D
X(n+1)E
X(n+1)F
● Do not turn on the "Use prohibited" signals of the I/O signals for the CPU module.
Doing so may cause a malfunction in the programmable controller system.

CPU module
Signal name
Module error
Host data link status
Use prohibited
Use prohibited
Module ready
Use prohibited
Signal direction: CPU module
Output No.
Yn0
Yn1
Yn2
Yn3
Yn4
Yn5
Yn6
Yn7
Yn8
Yn9
YnA
YnB
YnC
YnD
YnE
YnF
Y(n+1)0
Y(n+1)1
Y(n+1)2
Y(n+1)3
Y(n+1)4
Y(n+1)5
Y(n+1)6
Y(n+1)7
Y(n+1)8
Y(n+1)9
Y(n+1)A
Y(n+1)B
Y(n+1)D
Y(n+1)D
Y(n+1)E
Y(n+1)F
CHAPTER 3 SPECIFICATIONS

Master/local module
Signal name
Use prohibited
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