Pilz PSS SB FT, Basic license - Manual (Page 57)

Modular Block System: Burner Management 6-13
Setting/resetting the step with time delay and monitoring time
Spurious signals:
The monitoring time W_V and the time delay
D_E are started if the step enabling
condition is met.
Further processing of W_E and D_E outputs
is guided according to the technical
requirements of the cycles.
Multiple-recurring, fulfilled step enabling conditions have
no negative influence on the function.
The monitoring time
W_V and the time delay D_V are
started once only with the initial 0-1 edge at the COND
input.
In each case: a “1”-Signal at the
STEP input resets the outputs
NEXT, W_E and D_E.