6F3B0253

7. Instructions

TON

ON delay timer

Expression

Input [ A TON B ]Output

Function

When the input is changed from OFF to ON, timer updating for the timer register B is started. The elapsed time is stored in B. When the specified time by A has elapsed after the input came ON, the output and the timer device corresponding to B is turned ON. (Timer updating is stopped)

When the input is changed from ON to OFF, B is cleared to 0, and the output and the timer device are turned OFF.

The available data range for operand A is 0 to 32767.

Execution condition

Input

 

Operation

Output

OFF

No operation (timer is not updating)

OFF

ON

Elapsed time <

preset time (timer is updating)

OFF

 

Elapsed time

preset time (timer is not updating)

ON

Operand

 

Name

 

 

Device

 

 

 

 

 

 

Register

 

 

 

 

Constant

Index

 

 

X

Y

R

S

T.

C.

XW

YW

RW

SW

T

C

D

I

J

K

 

 

A

Preset time

 

 

 

 

 

 

√ √

 

0 - 32767

 

B

Elapsed time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Example

Y021 (and the timer device T.000) is turned ON 2 seconds after X000 came ON.

X000

Preset value

T000

T.000

Y021

Preset time (2s) Less than preset time

Note

Time is set in 10 ms units for;

T1: T000 to T031 (0 to 327.67 s)

T1S: T000 to T063 (0 to 327.67 s)

Time is set in 100 ms units for; T1: T032 to T063 (0 to 3276.7 s) T1S: T064 to T255 (0 to 3276.7 s)

Multiple timer instructions (TON, TOF or SS) with the same timer register are not allowed.

Basic Hardware and Function 129

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Toshiba 6F3B0253 user manual Ton, On delay timer