D20/D200 Technical Overview
GE Information PRPI-019-3.00-10
4.4 Communication Services Applications
Communication Watchdog DTA Monitor and report the health of communications
Substation Maintenance DTA Suppress SCADA point reporting during substation maintenance
Virtual Terminal DTA Direct remote access to connected devices
Line Switch DTA Monitor main and secondary communication channels and
retransmit on a third channel
LAN Services DTA TFTP, SPT Server/Client, Time Server/Client
COM Statistics DTA Detailed communication pass/fail statistics
IRIG B Source DTA Time sync connected devices using IRIG-B
SNTP Client DTA Time sync over an Ethernet LAN
4.5 Data Logging / Storage Applications
SOE Local Logger DTA Log digital and analog SOEs to an external printer, PC or to a
CSV file
Accumulator Freeze DTA Coordinate freezing of accumulator groups
Event Storage DTA Store history of current values, status, and time-tags of analogs
and accumulators for up to 7 days
Historical Analog DTA Store averaged historical values for up to 8 analog inputs
4.6 Data Reduction and Summarizing Applications
Analog Reference DTA Monitor analog input hardware for good or bad reference values
Data Change Detect DTA Toggle a status point every time any data in a configured group
changes
Alarm Prioritization DTA An alarm filter designed to manage the 3 level alarms reported by
GE’s DART pole-top/pad-mount distribution RTU
Analog Averaging DTA Average analogs at regular intervals
Analog Alarm DTA Alarm when analogs exceed configured thresholds
General Alarm DTA Group alarms together to create summary alarms
Top of Hour (TOH) Analog
Averaging DTA
Average analogs at regular intervals relative to the top of the hour
Redundant I/O DTA Provide data from a backup source if the primary source is off-line
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