Instruction of PLC programming timer is introduced

to S7 - 200, for example, there are three different types:

on delay timer ( TON）

keep on delay timer ( TONR)

disconnect delay timer ( TOF)

the resolution of the timer:

TON, TOF - - - Number 1 ms timer T32, T96

- - - 10 ms T33 - timer number T36 T97 - T100

- - - Ms timer number T37-100 T63 T101 - T255

TONR - - - 1 ms T0 timer number, T64

- - - T1-10 ms timer number T4, T65 - T68

- - - T5-100 ms timer number T31，T69- T95

, for example:

after 10 ms timer through.

application TON to control light:

select switch I0. 0 for ON time delay after the 5 s, Q0. Zero output;

disconnect I0. After 0, output Q0. 0 stop output.

there is another type of usage:

when M9. When 0 through, delay timer running;

in 2 - time Within 3 s, the M5. 1 output;

the rest of the time the M5. 1 don't output.