Toshiba PROSEC T1 T1S, 6F3B0250 user manual Special I/O Functions, Special I/O function overview

8. Special I/O Functions

8.1 Special I/O function overview

The T1/T1S 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 by	SW16 setting
constant		user program. The setting range is 0 to 15 ms	is necessary to
		(1 ms units). Default value is 10 ms. 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 5 kHz for each channel.	functions can
		Channel 1 ¼ X000 count input, X002 reset input	be selected.
		Channel 2 ¼ 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 1000 ms (10	function.
	counter	ms units). 2 channels of pulse input are available. The	(Note)
		countable pulse rate is up to 5 kHz for each channel.
		Channel 1 ¼ X000 count input
		Channel 2 ¼ 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 5 kHz.
		Phase A ¼ X000
		Phase B ¼ X001
		Reset ¼¼ 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 ¼ Interrupt 1 (I/O interrupt program #3)
		X003 ¼ Interrupt 2 (I/O interrupt program #4)
Analog setting function		The value of the analog setting adjuster is converted	No function
		into digital value (0 to 1000) and stored in the SW	selection is
		register. 2 adjusters are provided on the T1/T1S.	required.
		V0 ¼ SW30
		V1 ¼ SW31
Pulse output function		Variable frequency pulse train can be output. The	Either one
		available pulse rate is 50 to 5000 Hz (1 Hz units).	between these
		Y020 ¼ CW or Pulse (PLS)	2 functions can
		Y021 ¼ CCW or Direction (DIR)	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 ¼ PWM output	function. (Note)

NOTE

The above special I/O functions, except the variable input filter constant and analog setting functions, are available only in the DC input types.

268 T1/T1S User’s Manual

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