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3
SPECIFICATIONS
3.3 I/O Signals to the Programmable Controller CPU
3.3.2 Functions of I/O signals
3 - 9
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
PROCEDURES AND
SETTINGS BEFORE
OPERATION
5
FUNCTIONS
6
UTILITY PACKAGE (GX
Configurator-CT)
7
PROGRAMMING
8
TROUBLESHOOTING
(2) Counter value large No.1 (X01), counter value coincidence No.1 (X02),
counter value small No.1 (X03)
counter value large No.2 (X04), counter value coincidence No.2 (X05),
counter value small No.2 (X06)
The signals notify a comparison result in the counter value comparison function
(coincidence output function, continuous comparison function).
In (a) and (b) below, operations of the counter value large No.1 (X01), the counter
value coincidence No.1 (X02) and the counter value small No.1 (X03) are explained.
For the counter value large No.2 (X04), the counter value coincidence No.2 (X05),
and the counter value small No.2 (X06), operations are the same except that I/O
numbers (X/Y) and buffer memory addresses of the point used for comparison are
different.
(a) Operation when used for the coincidence output function (Refer to Section 5.3.1.)
Figure 3.7 Operation of the counter value large No.1 (X01), the counter value coincidence No.1 (X02) and the counter value small
No.1 (X03) when using the coincidence output function
Counter value
large
No.1(X01)
Counter value
coincidence
No.1(X02)
Counter value
small
No.1(X03)
Present value
(Un\G12 and 13)
<
Coincidence output No.1 point
setting
(Un\G6 and 7)
OFF OFF ON
Present value
(Un\G12 and 13)
=
Coincidence output No.1 point
setting
(Un\G6 and 7)
OFF ON* OFF
Present value
(Un\G12 and 13)
>
Coincidence output No.1 point
setting
(Un\G6 and 7)
ON OFF OFF
* The counter value coincidence No.1 (X02) remains ON until the coincidence signal No.1 reset command (Y01) is
turned ON.
ON
OFF
OFF
OFF
ON
ON
* t 2ms
t*
100
100 101 1029998
0
OFF
OFF
ON
OFF
01
OFF
ON
t*
ON
Operation by the QD64D2
Operation by the sequence program
Immediately after power-on or reset
of the programmable controller CPU
Coincidence output
No.1 point setting
(Un\G6 and 7)
Present value
(Un\G12 and 13)
Counter value large
No.1 (X01)
Counter value coincidence
No.1 (X02)
Counter value small
No.1 (X03)
Coincidence signal No.1
reset command
(Y01)