Using The Sampling Counter Function - Mitsubishi MELSEC Q Series User Manual
High-speed counter module
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- Programming manual (1296 pages) ,
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6 CONVENIENT USAGE
6.4 Using the Sampling Counter Function
Count enable command
{Y04 (Y0C)}
Present value storage buffer memory
{Addresses 2
to 3
H
H
Counter function selection start command
{Y06 (Y0E), function start}
Sampling count value storage buffer memory
{Addresses E
to F
H
H
Sampling/periodic counter flag storage
buffer memory
{Address B
(2B
)}
H
H
6 - 6
The sampling counter function counts the pulses that are entered during the specified
sampling time period.
The relationships between the signals, buffer memory, etc. in the sampling counter
function are illustrated below.
ON
OFF
200
100
(22
to 23
)}
H
H
0
ON
OFF
200
100
(2E
to 2F
)}
H
H
0
– 100
1
0
Number
The pulses entered are counted from 0 at the rise of the counter function
1)
selection start command {Y06 (Y0E), function start input}.
2)
When the specified sampling time period elapses, the count stops.
While the sampling counter function is being executed, 1 is stored in the
3)
sampling/periodic counter flag storage buffer memory {address B
Even if the execution of the sampling counter function ends, the value in the
4)
sampling count value storage buffer memory is saved.
The sampling counter function is executed regardless of whether the count
5)
enable command {Y04 (Y0C)} turns ON/OFF.
1)
T
T
2)
4)
3)
Description
MELSEC-Q
5)
T
(2B
)}.
H
H
6 - 6
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