Using The Periodic Pulse Counter Function - Mitsubishi MELSEC Q Series User Manual

6 CONVENIENT USAGE

6.5 Using the Periodic Pulse Counter Function

Count enable command
{Y04 (Y0C)}
Present value storage buffer memory
{Addresses 2 to 3 (22
H H H
Counter function selection start command
{Y06 (Y0E), function start}
Present periodic pulse count value storage
buffer memory
{Addresses 12 to 13 (32
H H
Previous periodic pulse count value storage
buffer memory
{Addresses 10 to 11 (30
H H
Sampling/periodic counter flag storage
buffer memory
{Address B (2B )}
H H
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The periodic pulse counter function stores the present and previous counter values for
each specified periodic time (T) as the present and previous values.
The relationships between the signals, buffer memory, etc. in the periodic pulse
counter function are illustrated below.
ON
OFF
200
100
to 23 )}
H
0
ON
OFF
200
100
to 33 )}
H H
0
200
100
to 31 )}
H H
0
1
0
2)
200
3)
20
1)
0
T T
2)
200
1)
0
2)
0
7)
6)
4)
5)
100
80
T T T
4)
5)
100
80
3)
20
3)
200
5)
100
4)
20
MELSEC-Q
6 - 7