User Device; Input (X); Output (Y) - Mitsubishi Electric MELSEC iQ-R Series User Manual

27.3

User Device

This chapter describes the user device.

Input (X)

This device provides the CPU module with commands and/or data using an external device, such as pushbutton, transfer
switch, limit switch, and digital switch.
Push-button switch
Selector switch
Input (X)
Digital switch
1 2 3
Concept of input
Assume that one virtual relay Xn is incorporated into the CPU module for each input point. In the program, a normally open
contact and normally closed contact for the Xn are used.
Virtual relay
PB1
PB2
PB16
Input circuit (external device)
Also, the input can be used as a target re-flesh (CPU module side) device of the remote input (RX), such as the CC-Link IE
Field Network.

Output (Y)

This device outputs the control results of the program to various devices, such as external signal light/digital HMI/
electromagnetic switch (contactor)/solenoid.
CPU module
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27.3 User Device
CPU module
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
A A
B B
C C
D D
E E
F F
X0
X0
X1
X1
X0F
XF
Program
Signal light
Digital indicator
Output (Y)
Contactor
Programmable
controller