Mitsubishi MELSEC Q Series User Manual page 28

3 SPECIFICATIONS
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(2) Preset value setting (Buffer memory addresses CH1: 0
CH2: 20 to 21
H
• This area is used to set the values that are preset in the counter.
• The setting range is from –2147483648 to 2147483647 (32-bit signed binary
values).
(3) Present value (Buffer memory addresses CH1: 2
to 23 )
H
• The present values for the counter are stored.
• The range of the values that are read is from –2147483648 to 2147483647
(32-bit signed binary values).
(4) Coincidence output point set No.1 and No.2
(Buffer memory addresses CH1: 4
• This area is used to write the setting values of the coincidence output points to
be compared with the present counter value.
• No.1 and No.2 coincidence output points can be set for each channel.
• The setting range is from –2147483648 to 2147483647 (32-bit signed binary
value).
(5) Overflow detection flag (Buffer memory addresses CH1: 8
28 )
H
• A counter overflow occurrence status is stored when the counter format is
linear counter.
• The following values corresponding to the overflow occurrence status are
stored in this area.
Condition
No overflow detection
Overflow occurred
(6) Counter function selection setting (Buffer memory addresses CH1:
9 , CH2: 29 )
H H
• This area is used to set the data for which a counter function is selected.
• The relationships between the selected counter function and set value are
shown below.
Counter function selection
Count disable function
Latch counter function
Sampling counter function
Periodic pulse counter function
)
H
to 3
H
to 7 , CH2: 24 to 27
H H H
Buffer memory content
0
1
Set value
0
1
2
3
MELSEC-Q
to 1 ,
H H
, CH2: 22
H H
)
H
, CH2:
H
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