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3.3 I/O Signals to the Programmable Controller CPU
3.3.2 Functions of I/O signals
3
SPECIFICATIONS
(b) Operation when used for the continuous comparison function (Refer to Section
5.3.2.)
Figure 3.8 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 continuous comparison 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)
<
Continuous comparison No.1 point
n setting
(Un\G54 to 85)
OFF OFF ON
Present value
(Un\G12 and 13)
=
Continuous comparison No.1 point
n setting
(Un\G54 to 85)
OFF ON* OFF
Present value
(Un\G12 and 13)
>
Continuous comparison No.1 point
n setting
(Un\G54 to 85)
ON OFF OFF
* The counter value coincidence No.1 (X02) remains ON for the preset time of the continuous comparison No.1
ON time setting (Un\G52).
OFF
ON
OFF
ON
ON
9999
012
01 12 3
98
9998
*2 t1 < t2 < (t1+1ms)
t1*1
t2*2
99 100 101 102
100001000110002
19998 19999 20000 20001
20002
OFF OFF OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON ON
ON
ON ON
ON
ON ON
Usage condition of the following operation diagram
Continuous comparison No.1 start point setting (Un\G50): 1 (point 1)
Continuous comparison No.1 repeat point setting (Un\G51): 3 (point 3)
Continuous comparison No.1 point 1 setting (Un\G54 and 55): 100
Continuous comparison No.1 point 2 setting (Un\G56 and 57): 10000
Continuous comparison No.1 point 3 setting (Un\G58 and 59): 20000
Operation by the QD64D2
Operation by the sequence program
Continuous comparison
No.1 execution command
(Y09)
During continuous
comparison No.1
execution (X09)
Continuous comparison
No.1 point monitor
during comparison
(Un\G86)
Present value
(Un\G12 and 13)
Counter value
large No.1 (X01)
Coincidence output
No.1 terminal
(EQU1)
Counter value
coincidence No.1
(X02)
Counter value
small No.1 (X03)
*1 t1 = Continuous comparison No.1 ON time setting (Un\G52)