Product category:
Plantwide control
News Release from: Omniflex (UK) | Subject: Conet OPC server
Edited by the Engineeringtalk Editorial
Team on 16 April 2004
Time stamping at source aids Scada
analysis
Omniflex has just released a Conet OPC server upgrade that handles date and time stamped events from source.
Omniflex has just released a Conet OPC server upgrade that handles date and time stamped events from source Omniflex products like SER260 sequential events recorder and Maxiflex PLC/data acquisition system have the ability to date and time stamp changes of state as they happen at the input
This article was originally published on Engineeringtalk on 24 Apr 2007 at 8.00am (UK)
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This ensures that when users want to review the sequence of events leading up to an alarm or trip they can see the chronological order in which things occurred inTime tagging or stamped change of state at the Scada often is inaccurate as the network communications can have delays which makes events appear in a different order.
Also, Scada polling cycle times affect this as several events may appear to occur at the same time because the Scada only gets round to poll that controller once every few seconds at best.
Time stamping at source provides better than 1ms or tens of milliseconds resolution on all plant events.
The latest OPC Server now handles these events and presents them to the Scada client for archiving into its database for later analysis.
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