Restrictions On Combinations - Panasonic FP7 User Manual

High-speed counter unit
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8.1.2 Restrictions on Combinations

Available conditions vary by functions.
 Comparison of functions
Item
Usable number of points
Used unit memory (UM)
area (Note 1)
Buffer function (Note 2)
Capture function valid
condition
(Note 2)
Control
signal 0
Control
signal 1
Capture
trigger
(Note 1)
Capture
trigger
signal valid
condition
Capture data memory
area clear (Note 3)
Capture done flag clear
(Note 3)
(Note 1) Functions and capture trigger signals to be used are set in the configuration menu of tool software or user
programs.
(Note 2) The buffer function and capture function valid conditions are available from thei high-speed counter unit
Ver.1.2.
(Note 3) The capture value clear request and capture done flag clear request signals are available from the high-
speed counter unit Ver.1.2. They can be set in user programs.
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Capture function
Max. 2 points
The capture function cannot be used when using the sampling capture function.
Individually usable;
Capture 0 register: 1 point (2 words)
Capture 1 register: 1 point (2 words)
Difference value register (Value of Capture 1 register - Value of Capture 0 register):
1 point (2 words)
Data in the capture registers are shifted to the buffer area in sequence when
executing the capture function.
For the capture 0 register, capture 1 register, difference value register (when
activating the capture 0) and difference value register (when activating the capture
1), each 60-point (120-word) area is secured.
The capture function is valid while the
capture enable request signals (Y7, Y17,
Y27, Y37) is on using user programs.
Allocated in the configuration menu of tool software.
Used as a trigger for capture 0 or
capture 1.
Used as a trigger for capture 0 or
capture 1.
Activated when any of the following
conditions is met.
 Leading edge of control signal
 Trailing edge of control signal
It is possible to allocate one control
signal to different capture numbers as
the signals of leading edge and trailing
edge respectively.
Capture 0 register and capture 1 register can be cleared individually using user
programs.
Buffer areas can be reset at the same time.
It is automatically cleared at the time of I/O refresh.
Capture 0 register and capture 1 register can be cleared individually using user
programs.
Sampling capture function
Max. 1 point
Use Capture 0 register: 1 point (2
words)
The capture function is always valid.
Used as a tirgger for both capure 0
and capture 1.
Not used
Activated when any of the following
conditions is met.
 Control signal (Positive logic)
 Control signal (Negative logic)
 Capture enable request by user
programs (Y7, Y17, Y27, Y37)

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