Working with contacts
and relays
149
1SVC 440 795 M1100
Rising edge evaluation (cycle pulse) È
This function is used if the coil is only meant to switch on a
rising edge. With a change in the coil state from 0 to 1, the
coil switches its N/O contacts to the state 1 for one cycle.
Figure: 93: Signal diagram of cycle pulse with rising edge
Falling edge evaluation (cycle pulse) è
This function is used if the coil is only meant to switch on a
falling edge. With a change in the coil state from 1 to 0, the
coil switches its N/O contacts to the state 1 for one cycle.
Figure: 94: Signal diagram of cycle pulse with falling edge
on
on
on
on
h
A set coil is automatically switched off if the power fails
and if the device is in STOP mode.
Exception: Retentive coils retain signal 1
(see a section “Retention”, page 363).
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