Kingfisher Plus+ Hardware Manual
A 1 ms debouncing is automatically enforced when ‘AC Filter’ is chosen.
11.3.5 Sequence of Events Recording
Sequence-of-Event (SoE) recording can be configured for any input channel. When enabled,
any change of state (event) on the input is logged to 1 millisecond resolution. These events
are automatically included in the Event Log of the RTU. The DI-10 module has an internal
timer that is synchronised with the Real Time Clock of the processor.
Timestamps of the DI-10 v4.3 are guaranteed to be within ±2 ms of UTC time when optional
GPS synchronisation feature is used in the RTU system.
The DI-10 module has a buffer capable of storing 1000 events. This means bursts of up to
one thousand events can be recorded at a time. Events are uploaded into the processor
module at a maximum rate of 100 events per second allowing the DI-10 module to cope with
events at a sustained rate of 100 events per second.
Please note that SoE recording is not supported when using a PC-1 processor.
11.3.6 GPS Time Synchronisation (Optional)
When a GPS device is attached to the DI-10-GPS module, it will synchronise the time on the
CP-30 processor and all other DI-10 modules (GPS Slaves) in the RTU via signalling on the
backplane. SoE timestamps on all DI-10 v4.3 modules will then be synchronised to the GPS
time within 2 ms.
This feature does NOT work with other Kingfisher Plus+ processor modules (such as CP-12,
CP-11, CP-21 and PC-1) nor with DI-10 v3.2 modules.
The GPS time synchronisation feature requires at least one DI-10-GPS module (GPS
Master) per RTU. More than one GPS Master can be used to provide redundancy.
One of the unused backplane connections (24V power rail) is used to carry the time
synchronisation signal between DI-10 modules.
WARNING. Installing DI-10 v4.3 modules on 24V backplanes (that are used in some old
Kingfisher Plus+ installations) will damage DI-10 modules and void their warranty.
To support time synchronisation of the DI-10 modules across multiple backplanes, the time
synchronisation signal must be connected between them. This signal is available on
backplane power connector J14:
Hardware Manual Version 7.16
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