Programming language, User's manual – Toshiba T2N User Manual

Page 240

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User's manual

227

5. Programming Language

Ladder Diagram Instructions (Sequence Instructions)

(A)

(A)

(A)

(A)

(A)

(A)

(A)
I

(A)
P

N

(A)
P

(A)
N

JCS

JCR

END

Group

FUN

No.

Name

Representation

Summary

Number of

steps

required

Execution

time

required

(

µ

s)

Remarks

Sequence
instructions

NO contact

NO contact of device (A) (contact normally open)

1

0.33

NC contact

NC contact of device (A) (contact normally closed
open)

1

0.33

Transitional contact (rising)

Switches output ON only when input in the previous
scan is OFF and the input for this scan is ON.

1

0.33

Transitional contact
(falling)

Switches output ON only when input in the previous
scan is ON and input in this scan is OFF.

1

0.33

Coil

Switches device (A) on when input is ON.

1

0.44

Forced coil

Retains state of device (A) when force is applied,
regardless of whether input is ON or OFF.

1

0.33

Inverter

Inverts the input state

1

0.22

Invert coil

Stores [data] in device (A), in reverse state to input.

1

0.44

Positive
Transition-sensing contact

Inverts the input state and stores it in device (A).

1

0.54

Negative Transition-
sensing contact

Turns output ON for 1 scan only, when input is ON
and device (A) has been changed from ON to OFF.

1

0.54

Positive
Transition-sensing coil

Turns device (A) ON for 1 scan only, when input has
been changed from OFF to ON.

1

0.54

Negative Transition-
sensing coil

Turns device (A) ON for 1 scan only, when input has
been changed from ON to OFF.

1

0.54

Jump control set

Carries out high-speed skipping on instructions
between JCS and JCR when JCS input is ON.

1

0.22

Jump control reset

1

0.22

End

Indicates end of main program and sub-program.

1

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