9
DEVICE EXPLANATION
9.2 Internal User Devices
9.2.1 Input (X)
9
- 8
9
Device Explanation
10
CPU Module Processing
Time
11
Procedure for Writing
Program to CPU Module
AppendicesIndex
9.2.1 Input (X)
(1) Definition
Inputs transmit commands or data to the High Performance model QCPU from an
external device such as push-button switches, selector switches, limit switches, digital
switches.
(2) Concept of input (X)
If the input point is the Xn virtual relay inside the High Performance model QCPU, the
program uses the Xn's N/O contact or N/C contact.
(3) Number of used N/O and N/C contacts
There are no restrictions on the number of Xn N/O contacts and N/C contacts used in
a program, provided the program capacity is not exceeded.
Diagram 9.2 Commands from external devices to CPU module
Diagram 9.3 Inputs(X)
Diagram 9.4 Input(X) Used in Program
1 2 3
Push-button switch
Selector switch
Digital switch
Input (X)
Sequence
operation
LS2
PB1
PB16
XF
X1
X0
Virtual relay
ProgramInput ladder (external device)
XF
X0
X1
Programmable
controlle
X0
Y21
X0
X0
Y20
Y21
Y23
X1
X2
X2
No restrictions on the
quantity used.
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