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Functions Listed by Usage Section 1-4
When IORF(97) is used, the cycle time is extended by the time required to
refresh the specified I/O words.
1-4 Functions Listed by Usage
Machine Control Functions
Cycle
time
Overseeing processes
Main program
I/O refreshing
RS-232C port servicing
Peripheral port servicing
IORF(97) executed.
Immediate refreshing
I/O refreshing
Usage Function Refer
to
Receive high-speed count
inputs
(For example, calculating
length or position with an
encoder).
Max. count frequency of 2 kHz
(single-phase)
Use interrupt input (counter mode) to
read the present value without inter-
rupts.
W353
Max. count frequency of 5 kHz (differential
phase) or 20 kHz (single-phase)
Use high-speed counter to read the
present value without interrupts.
Generate a pulse output based on a multiple of an input pulse to syn-
chronize control of a peripheral process with the main process.
Pulse synchronization
The multiple for the peripheral process (such as tool feed rate) can be
changed during operation by calculating the multiple from another input
value (such as an encoder) in the peripheral process.
This method can be used to change the process for different products or
models without stopping the equipment.
Reliably receive input pulses with an ON-time shorter than the cycle
time (such as inputs from a photomicrosensor).
Quick-response input function
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