Reading Capture Data; Reading Capture Register Data - Panasonic FP7 User Manual

8.5 Reading Capture Data

8.5.1 Reading Capture Register Data

 Area in which capture data is stored
• Latest captured data is stored in the capture 0 register or capture 1 register of unit
memory(UM).
• The values ((Capture 1 register) - (Capture 0 register)) are stored in the capture register
difference value area.
• They are stored as signed 32-bit data (-2,147,483,648 to 2,147,483,647).
 Related unit memory (UM) No.
Monitor item
Capture 0 register
Monitor
Capture 1 register
area
Capture register difference value
 I/O allocation
Signal name
Capture 0 done flag
Capture 1 done flag
(Note 1): The above I/O numbers are those for the slot number 1 and the starting word number 10. The I/O numbers
actually used vary according to the slot number where the unit is installed and the starting word number.
 Sample program
Data is read out to arbitrary operation memories using the done flag which indicates the
completion of capture.
Example) Program to read the capture value of CH0 of the high-speed counter unit installed in
the slot number 1
X104
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Unit memory (UM) No.
CH0 CH1
UM003A2- UM003B2-
UM003A3 UM003B3
UM003A4- UM003B4-
UM003A5 UM003B5
UM003A6- UM003B6-
UM003A7 UM003B7
CH0 CH1
X104 X124
X105 X125
MV.SL S1:UM003A2
CH2 CH3
UM003C2- UM003D2-
UM003C3 UM003D3
UM003C4- UM003D4-
UM003C5 UM003D5
UM003C6- UM003D6-
UM003C7 UM003D7
CH2 CH3
X144 X164
X145 X165
DT100