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Figure 5.5.2. Real-time visualization of background data.
5.6 Master functionality
To use this feature the option must be activated in one of the instruments – the
Master
. The other
instruments are standard instruments – called
Slaves
. Communication in the network is handled by
the Master.
With this feature up to 32 MR3000SB or MR3000C can be integrated in a network to perform
common sampling, common trigger and common alarm.
Common sampling means that all the MRs in the network are synchronized. This is essential when
studying wave propagation, modal analysis and cross-correlation. This is achieved by
synchronizing the clocks of all MRs in the network by one single MR (not necessarily the Master).
This MR may be equipped with a GPS clock or itself be synchronized by an NTP server. If common
sampling is not needed, all MRs in the network may be configured to individually synchronize to an
external NTP server (default setting).
Common trigger means that all MRs in the network start recording if a single MR or a group of MRs
meet the trigger criteria. A group is defined by a logical AND combination of individual MRs. It is
possible to define several groups. The groups are combined with a logical OR condition.
Common alarm provides an alarm voting logic. The set-up is – similar to the common trigger –
made by logical AND and OR combinations.
