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10 BLOCK LINK EXAMPLES
10.7 Latch Counter
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Multi function counter block detail window
The items other than the above need not to be set.
Block
Variable name
Setting value
Description
Input 0
Input 1
Latch 0
Input_Signal_Event
Detector Select
2-phase multiple of 1+
Set this parameter to detect an addition pulse.
Detector Select
2-phase multiple of 1-
Set this parameter to detect a subtraction pulse.
LatchEvent
Detector Select
A: Rise
Set conditions to detect a latch signal.
Counter_Timer_0
Count Enable
ON
Set this parameter to "ON".
Count Mode
Ring
Set this parameter according to the control.
Upper Limit
20000
Set this parameter according to the control.
Lower Limit
0
Set this parameter according to the control.
Clock
25ns
Set this parameter to "25ns". (to prevent input pulses
from missing)
Add Mode
OFF
Set this parameter according to the control.
Add Value
0
Preset Value
0
Set the same value as that in "Lower Limit".
Latch Value
(User Address)
1000
Assign a buffer memory address.
Summary of Contents for MELSEC-L Series LD40PD01
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