HYDAC HMG 3000 - Manual (Page 43)

HMG 3000 Page 43
Edition 11/2007 - V02 R01-S02 Stock no.: 669712
Linking Events
You also have the option of linking events.
Without linking, each of the four events acts
alone and independently as a trigger for a
measurement recording.
In the line Joint events (options shown to
the right) a drop-down list opens containing
the linked event options. In the example, the
linking of Events 1 and 2 (shown at the left
by a circuit diagram symbol) means that
recording is
EITHER triggered by the simultaneous
occurrence of events 1 and 2 (the measured
value in channel A drops to 5.00 bar, with
the measured value in channel B leaving the
window of 4.00 to 6.00 bar at the same time)
OR a voltage signal (falling signal edge) is
detected at trigger input J,
OR a key or button is actuated.
Other event linking options are shown in the
drop-down list. It should be borne in mind
that events are always listed in descending
order, otherwise you have to resort the
events.
In the 1 and 2 and 3 and 4 option, all events
have to occur simultaneously in order for a
recording to be triggered. By contrast, the
(1 & 2) or (3 & 4) option (last line in the
drop-down list) provides for three variants:
A triggered recording is initiated when
a) 1 and 2 coincide or
b) 3 and 4 coincide or
c) all, i.e. 1 and 2 and 3 and 4, occur
simultaneously.