Siemens PLC S7-300 Ladder Diagram Programming Example-pulse generator

Siemens plc S7-300 programming the timer can also be   a pulse generator.

(1) Control Requirements

The PLC program using a timer constitute a pulse generator,With two timers generate a pulse signal frequency of the duty cycle can be set

Timing diagram of the pulse generator

(2) Ladder Diagram

PLC Ladder Diagram

When the input I0.0 is 1, the output Q0.0 is 0 or 1 alternately, a periodic pulse signal for 3s, the pulse width is 1s.

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