Recorder And System Trigger - HBM Genesis GEN5i User Manual

Ext Trigger Out
Int Trigger Line 1
Int Trigger Line 2
Int Trigger Line 3
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10.5

Recorder and system trigger

The trigger modes and features described so far are channel-based. Each
analog channel within a GEN series system has a digital trigger detector. The
trigger signals of all channels of a single recorder are combined through a
logical OR to generate a combined trigger. This trigger can be combined with
an external trigger and qualifiers. The final result is a recorder trigger. The
triggers that are generated by individual recorders can be distributed to other
recorders and mainframes.
The following simplified diagram is from the Perception software and shows the
building blocks that make the complete recorder trigger logic. Please note that
- depending on your exact hardware - not all features may be available.
Qualifier 1
Qualifier "N"
Ext Trigger In
Channel 1
Channel "N"
Master/Slave
Figure 10.16: Recorder trigger logic
The heart of the recorder trigger logic is the "Combine" block. Here all trigger
sources come together and, depending on their setting, can generate a
recorder trigger. This can be blocked, however, by qualifiers: If one of the
qualifiers is not armed, no recorder trigger can be generated.
Channel 1 through N: These are the channel triggers as described earlier.
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Refer to chapter Introduction of Digital Trigger Modes "Introduction" on
page 122.
External Trigger In: This is an external trigger signal that is mainframe-
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related: The input connector is placed on the mainframe controller. You can
select to use it or not. When selected, all recorders in the mainframe use
it. It is not used on a per-recorder basis.
Qualifier 1 through N: These are the qualifiers as described earlier: See
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"Trigger qualifier" on page 132.
External Trigger Out: The recorder trigger can be used to send a trigger
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signal to the outside world. The output connector is placed on the
mainframe controller. When selected, all recorders in the mainframe use it.
It is not used on a per-recorder basis.
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