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3

3.3

I/O Signals to the Programmable Controller CPU

3.3.1

List of I/O signals

The following table shows the I/O signals from the QD64D2 to the programmable 
controller CPU. 
Note that I/O numbers (X/Y) mentioned in this and the subsequent chapters are assumed 
when the QD64D2 is mounted to the null I/O slot on the main base unit.

 * 1 The signals are used only for the continuous comparison function.

The reserved signals above are for system use, not for users. If used (turning ON/
OFF) by a user, the functions of the QD64D2 are not guaranteed. 

X00

Module READY

X10

Reserved

X01

CH1

Counter value large No.1 

X11

CH2

Counter value large No.1

X02

Counter value coincidence No.1 

X12

Counter value coincidence No.1

X03

Counter value small No.1 

X13

Counter value small No.1 

X04

Counter value large No.2  

X14

Counter value large No.2 

X05

Counter value coincidence No.2 

X15

Counter value coincidence No.2 

X06

Counter value small No.2

X16

Counter value small No.2 

X07

Reserved

X17

Reserved

X08

External preset request detection

X18

External preset request detection

X09

During continuous comparison No.1 

execution 

*1 

X19

During continuous comparison No.1 

execution 

*1

X0A

During continuous comparison No.2 

execution 

*1

X1A

During continuous comparison No.2 

execution 

*1

 

X0B

Reserved

X1B

Reserved

X0C

Reserved

X1C

Reserved

X0D

Error occurrence

X1D

Error occurrence

X0E

Warning occurrence

X1E

Warning occurrence

X0F

Reserved

X1F

Blown fuse detection flag