Overview Of Functions; Types Of Capture Function - Panasonic FP7 User Manual

8.1 Overview of Functions

8.1.1 Types of Capture Function

 Capture function
• Stores the count value at the time an external input signal changes into the unit memory
(capture register) of the high-speed counter unit.
Capture enable
ON
request
(Turned On in
OFF
user program)
ON
Capture trigger
(External input
signal)
OFF
Count value
Capture register
 Sampling capture function
• Stores the count values during a specified sampling time form the time an external input
signal changes into the unit memory (capture register) of the high-speed counter unit.
• The count values for the sampling time can be monitored by reading the difference value
register.
ON
Capture trigger
(External input
signal)
OFF
ON
Sampling
capture
OFF
processing
Count value
Capture 1 register
Capture 0 register
Capture register
difference value
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0 1 2 3 4 5 6 7 8 9 10
xxxxx
Sampling time
0 1 2 3 4 5 6 7 8 9 10
xxxxx
2
xxxxx xxxxx
xxxxx xxxxx
12 14 16 18 20 22
9
Sampling time
12 14 16 18 20
9
2
7
24
22 24 26 28 30 32
18 25
9 18
9 7