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1-4
Section
Usage
Refer
to
Function
Interrupt functions
Execute a special process very quickly
when an input goes ON.
(For example, operating a cutter when an
interrupt input is received from a Proximity
Switch or Photoelectric Switch.)
Interrupt input (interrupt input mode)
W353
Count input ON pulses and execute a
special process very quickly when the
count reaches the preset value.
(For example, stopping the supply feed
when a preset number of workpieces have
passed through the system.)
Interrupt input (counter mode)
Execute a special process at a preset
count value.
(For example, cutting material very
precisely at a given length.)
High-speed counter interrupt
generated when the count matches
the set value.
Execute a special process when the count
is within a preset range.
(For example, sorting material very quickly
when it is within a given length range.)
High-speed counter interrupt
generated when the count is within the
set range.
Execute a special process when a timer
times out.
(For example, stopping a conveyor at very
precise time (independent of the cycle
time) after the workpiece is detected.)
Interval timer interrupt
(One-shot mode)
Repeat a special process at regular
intervals.
(For example, the speed of a sheet feeder
can be monitored by measuring the input
signal from an encoder at regular intervals
and calculating the speed.)
Interval timer interrupt
(Scheduled interrupt mode)
Perform simple positioning by outputting pulses to a motor driver that
accepts pulse-train inputs.
Pulse output function
Basic Functions
Usage
Function
Refer
to
Set the cycle time to a fixed interval.
Set a minimum (fixed) cycle time in the PC Setup.
W353
Stop PC operation when the cycle time exceeds a
maximum setting.
Set a maximum (watch) cycle time in the PC Setup.
Keep all outputs ON when PC operation stops.
Turn ON the IOM Hold Bit (SR 25212).
Retain the contents of I/O memory when starting
operation.
Turn ON the IOM Hold Bit (SR 25212).
Retain the contents of I/O memory when the PC is
turned ON.
Turn ON the IOM Hold Bit (SR 25212) and set the PC
Setup (DM 6601) so that the status of the IOM Hold Bit
is maintained at startup.
Eliminate effects from chattering and external noise.
Set a longer input time constant in the PC Setup.
Maintenance Functions
Usage
Function
Refer
to
Record data with time-stamp.
Clock/calendar function
W353
Establish user-defined errors for desired input
conditions. (Fatal and non-fatal errors can be defined.)
FAL(06) defines non-fatal errors. (PC operation
continues.)
FALS(07) defines fatal errors. (PC operation stops.)
Read the number of power interruptions.
The number of power interruptions is stored in AR 23.
Set the startup operating mode.
Set the startup operating mode in the PC Setup
(DM 6600).
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