Panasonic FP0 Series, User Manual

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High − speed Counter/Pulse Output/ PWM Output FP0
9 − 9
9.3 High − speed Counter Function
9.3 High − speed Counter Function
9.3.1 Outline of High − speed Counter Function
High − speed counter function
The high − speed counter function counts the input signals, and when the count reaches
the target value, turns on and off the desired output.
The high
− speed counter function is able to count high − speed pulses of frequencies up
to 10 kHz.
To turn on an output when the target value is matched, use the target value match on
instruction ( F166 ). To turn off an output, use the target value match off instruction
( F167 ).
Preset the output to be turned on and off with the SET/RET instruction.
Setting the system register
In order to use the high − speed counter function, it is necessary to set system registers
400 and 401. For detailed information section ****
9.3.2 Types of Input Modes
Incremental input mode
X0
on
off
1 2 3 4 n − 3 n − 2 n − 1 n 0
Count
Decremental input mode
X0
on
off
n − 1 n − 2 n − 3 n − 4 3 2 1 0 n
Count