Clock/Clock-Pulse Generator - Siemens S5-100U User Manual

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Clock/Clock-Pulse Generator

This subsection describes how to program a clock-pulse generator.

Example: A clock-pulse generator can be implemented using a self-clocking timer that is followed

in the circuit by a binary scaler. Flag F 2.0 restarts timer T 7 each time it runs down,

i.e., flag F 2.0 is "1" for one cycle each time the timer runs down. The pulses of flag

F 2.0 applied to the binary scaler result in a pulse train with pulse duty factor 1:1 at

output Q 1.0. The period of this pulse train is twice as long as the time value of the

self-clocking timer.

Timing Diagram

Signal states

EWA 4NEB 812 6120-02

STEP 5 Operations

Circuit Diagram

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