Mitsubishi Electric QD62, User Manual

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MELSEC-Q
3 SPECIFICATIONS
(2) Preset value setting (Buffer memory addresses CH1: 0
H
to 1
H
,
CH2: 20
H
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
H
to 3
H
, CH2: 22
H
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
H
to 7
H
, CH2: 24
H
to 27
H
)
• 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
H
, CH2:
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 Buffer memory content
No overflow detection 0
Overflow occurred 1
(6) Counter function selection setting (Buffer memory addresses CH1:
9
H
, CH2: 29
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 Set value
Count disable function 0
Latch counter function 1
Sampling counter function 2
Periodic pulse counter function 3