Operations Of Sampling Capture Function; One Operation - Panasonic FP7 User Manual

8.3 Operations of Sampling Capture Function

8.3.1 One operation

• The count values and the difference values are stored in the capture registers (unit
memories UM) after a specified sampling time from the time that the control signal is turned
on or off.
• The sampling capture function is always enabled when the control signal is allocated to the
sampling capture function in the configuration.
• The control signal (positive logic), control signal (negative logic) or output relays (Y7, Y17,
Y27, Y37) can be selected as the trigger condition to start the sampling capture.
 Time chart
Capture trigger
(Control signal)
Sampling capture
processing
Count value
UM003A0-UM003A1
Capture 1 register
UM003A4-UM003A5
Capture 0 register
UM003A2-UM003A3
Capture register difference value
UM003A6-UM003A7
Capture 1 done flag
(X5)
Capture 0 done flag
(X4)
KEY POINTS
•
In the sampling capture operation (one operation), the capture 1 done flag is
activated. Note that the capture 0 done flag is not activated.
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ON
OFF
ON
OFF
t
0 1 2 3 4 5 6 7 8 910 12 14 16 18 20 22 24 26 28 30 32
xxxxx
xxxxx xxxxx
xxxxx xxxxx
ON
OFF
ON
OFF
2 9
2
7
t
18 25
9 18
9 7