Toshiba 6F3B0253 user manual Special I/O Functions, Special I/O function overview

6F3B0253

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 filter		Input filter constant (ON/OFF delay time) can be set				SW16 setting
constant		by user program. The setting range is 0 to 15ms				is necessary to
		(1ms units). Default value is 10ms. This function is				use this
		applied for X000 to X007 (8 points as a block).				function. (Note)
High	Single phase	Counts the number of pulses of single phase pulse				Only one
speed	up-counter	train. 2 channels of pulse input are available. The				among these 4
counter		countable pulse rate is up to 5KHz for each channel.				functions can
		Channel 1 … X000 count input, X002 reset input				be selected.
		Channel 2 … X001 count input, X003 reset input				SW16 is used
	Single phase	Counts the number of pulses in a specified sampling				to select the
	speed-	time. The sampling time setting is 10 to 1000ms				function.
	counter	(10ms units). 2 channels of pulse input are available.				(Note)
		The countable pulse rate is up to 5KHz for each
		channel.
		Channel 1 … X000 count input
		Channel 2 … X001 count input
	Quadrature	Counts the 2-phase pulses whose phases are shifted
	bi-pulse	90°	each other. Counts up when phase A precedes,
	counter	and counts down when phase B precedes.
		The countable pulse rate is up to 5KHz.
		Phase A …			X000
		Phase B …			X001
		Reset ……			X002
Interrupt input function		Immediately 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)
Analog setting		The value of the analog setting adjuster is converted				No function
function		into digital value (0 to 1000) and stored in the SW				selection is
		register. 2 adjusters are provided on the T1-16S.				required.
		V0 …	SW30
		V1 …	SW31
Pulse output function		Variable frequency pulse train can be output. The				Either one
		available pulse rate is 50 to 5000Hz (1Hz units).				between these
		Y020 … CW or Pulse (PLS)				2 functions
		Y021 …		CCW or Direction (DIR)		can be used.
PWM output function		Variable duty cycle pulse train can be output. The				SW26 is used
		available ON duty setting is 0 to 100% (1% units).				to select the
		Y020 …		PWM output		function. (Note)

256 T1-16S User’s Manual