Toshiba 6F3B0253 user manual List of instructions, Basic ladder instructions

6F3B0253

7.Instructions

7.1List of instructions

The T1-16S has 21 types of basic ladder instructions and 97 types of function instructions as listed below. The specifications of each instruction will be described in detail later.

The tables listing these instructions are provided as a quick reference. (Note: In the following table, italic character means operand, i.e. register, device or constant value.)

Basic ladder instructions

FUN	Name			Expression		Function	Steps	Speed	Page
No.								(∝ s)
−	NO contact		A			NO (normally open) contact of	1	1.4 - 3.3	117
						device A.
−	NC contact		A			NC (normally closed) contact	1	1.4 - 3.3	118
						of device A.
−	Transitional					Turns ON output for 1 scan
	contact (rising)					when input changes from OFF	1	3.0	119
						to ON.
−	Transitional					Turns ON output for 1 scan
	contact (falling)					when input changes from ON	1	3.0	120
						to OFF.
−	Coil			A		Relay coil of device A.	1	2.3	121
−	Forced coil			A		Forced coil of device A. State
						of device A is retained	1	2.3	122
						regardless of the input state.
−	Inverter			I		Inverts the input state.	1	1.4 - 3.3	123
−	Invert coil			A		Stores the inverse state of	1	2.3	124
				I		input into device A.
−	Positive pulse			A		Turns ON output for 1 scan	1		125
	contact			P		when input is ON and device A
						changes from OFF to ON.
−	Negative pulse			A		Turns ON output for 1 scan	1		126
	contact			N		when input is ON and device A
						changes from ON to OFF.
−	Positive pulse coil			A		Turns ON device A for 1 scan	1		127
				P		when input changes from OFF
						to ON.
−	Negative pulse coil			A		Turns ON device A for 1 scan	1		128
				N		when input changes from ON
						to OFF.
−	ON delay timer	− [ A TON			B ]−	Turns ON output when the
						time specified by A has	2	12.6	129
						elapsed after the input came
						ON. B is a timer register.
−	OFF delay timer	− [ A TOF			B ]−	Turns OFF output when the
						time specified by A has	2	12.8	130
						elapsed after the input came
						OFF. B is a timer register.
−	Single shot timer	− [ A SS B ]−				Turns ON output for the time
						specified by A when the input	2	13.0	131
						comes ON. B is a timer
						register.

106 T1-16S User’s Manual