|This is the
E_DELAY function block type for
delayed propagation of an event as defined in Annex A of IEC 61499-1.
- As shown in the event_delay
service sequence, the normal operation of an instance of this FB
type is to issue an event at the
EO output at a time
DT after the occurrence of an event at the
input, following which the FB returns to a state of waiting for
- As shown in the delay_canceled
service sequence, the occurrence of a
STOP event at a
time less than
DT following a
event causes an immediate return to the state of waiting for the
START event, without issuing an
- As shown in the no_multiple_delay
service sequence, the occurrence of a second
event at a time less than
DT following the previous
event has no effect.
- Open and run
- Enter data for the
DT input variable.
- Exercise the FB by clicking on the event inputs.
- Use the
SERVICE E_DELAY/resource sequences
documented at left and below for guidance in testing.