1-4
Section
Functions Listed by Usage
18
When IORF(97) is used, the cycle time is extended by the time required to re-
fresh the specified I/O words.
Cycle
time
Overseeing processes
Main program
I/O refreshing
RS-232C port servicing
Peripheral port servicing
IORF(97) executed.
Immediate refreshing
I/O refreshing
1-4
Functions Listed by Usage
Machine Control Functions
Usage
Function
Refer
to
Receive high-speed
count inputs
(For example, calculating
l
th
iti
ith
Max. count frequency of 2 kHz
(single-phase)
Use interrupt input (counter mode) to
read the present value without
interrupts.
W353
(
p ,
g
length or position with an
encoder).
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
synchronize 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.
