6F3B0253
256 T1-16S User’s Manual
8. Special I/O Functions
8.1 Special I/O function overview
The T1-16S supports the special I/O functions as listed below.
Function name Function summary Remarks
Variable input fil ter
constant Input filter constant (ON/ OFF delay time) can be set
by user program. The setting range is 0 t o 15ms
(1ms units). Default v alue is 10ms. This function is
applied for X000 to X007 (8 points as a block).
SW16 setting
is necessary to
use this
function. (Note)
Single phase
up-counter Counts the number of pulses of single phase pulse
train. 2 channels of pulse input are available. The
countable pulse rate is up to 5KH z for each channel.
Channel 1 … X000 count input, X002 reset input
Channel 2 … X001 count input, X003 reset input
Single phase
speed-
counter
Counts the number of pulses in a speci fied sampli ng
time. The sampling time setting is 10 to 1000ms
(10ms units). 2 channels of pulse input are available.
The countable pulse rate is up to 5 KHz for each
channel.
Channel 1 … X000 count input
Channel 2 … X001 count input
High
speed
counter
Quadrature
bi-pulse
counter
Counts the 2-phase pulses whose phases are shift ed
90° each other. Counts up when phase A precedes,
and counts down when phase B precedes.
The countable pulse rate is up to 5 KHz.
Phase A …X000
Phase B …X001
Reset …… X002
Interrupt input function Immediatel y activates the corresponding I/O interrupt
program when the interrupt input is changed from
OFF to ON (or ON to OFF ). 2 points of interrupt input
are available.
X002 …Interrupt 1 (I/O interrupt program #3)
X003 …Interrupt 2 (I/O interrupt program #4)
Only one
among these 4
functions can
be selected.
SW16 is used
to select the
function.(Not e)
Analog setting
function The value o f the analog setting adjuster is converted
into digital value (0 to 1000) and stored in the SW
register. 2 adjusters are provided on the T1-16S.
V0 … SW30
V1 … SW31
No function
selection is
required.
Pulse output function Variable frequency pulse train can be output. The
available pulse rate is 50 to 5000Hz (1Hz units).
Y020 … CW or Pulse (PLS)
Y021 … CCW or Direction (DIR)
PWM output function Variable duty cycle pulse train can be output. The
available ON duty setti ng is 0 to 100% (1% units).
Y020 … PWM output
Either one
between these
2 functions
can be used.
SW26 is used
to select the
function. (Note)